It’s not just where it’s life, it’s when. We have an observer bias. And what are the odds of intelligent life in our own planet? Universe is 14 Billion years old, Earth is 4.5 Billion years old, and we’ve been smart enough to leave our atmosphere for like 70.

@pacpac1714

Жыл бұрын

100%, best comment, your spot

@thedadidoni

Жыл бұрын

Great way to put it.

@mestanley1753

Жыл бұрын

So what are you saying?

@b_f_d_d

Жыл бұрын

This is a great way to put it

@mestanley1753

Жыл бұрын

I'm not sure exactly what your saying. It's not "when" once something has achieved immortality. It's "always".

Posted 3 seconds ago? The earliest I've ever been for anything

I can listen to Neil for hours , his facts about the universe always keep me interested!

@AbdulSalam-oi5uq

2 жыл бұрын

Same here

@Baker69

2 жыл бұрын

Me too

@KevinP32270

2 жыл бұрын

AGREED.

@kevinmurphy65

2 жыл бұрын

Yep me too.

my thoughts on this: - life is common in the universe, yet due to the vast distances between starts and even worse between galaxies and our very limited ways of "detection", we are not really able to "see" or "hear" anything (and we mostly have only a chance to search for earth/human-like signals or signs / chemistry to be able to actually recognize it) - intelligent life exists but is rare and tends to vanish after a certain period of time (self destruction / natural disaster / mass extinction of some kind) so the probability of such life to go interstellar is even lower than the probability of its existence. Due to this its very improbable for us to actually be alive (during our only 100+/- years of technology) together (at the same time) with some other intelligent civilization which would be in detectable range of us during the period of just a few dozen of years when we started to actually look for anything in the universe... the time scale we had until now is just too small compared to the time the universe (as we think we know it) exists. To find any life or even intelligent life we would probably need several hundreds or even thousands of years even with progressing technology (which right now really only is bound to light and our various methods of detection based on light/speed of light) - even if a civilization "somewhere" in the universe could pass the great filter (being able to preserve itself by protecting their planet from mass extinction events directly or by moving to another planet or star system), the chance of them detecting us or us being able to detect them is just very very low... due to the distance reasons already described - if evolution of intelligent life and its technological progress is driven by similar factors as on Earth, than it would be very dangerous for us if any such life would detect us and even be able to reach our planet... you just don't spend thousands of years and resources to travel to a distant planet just to say "Hello" and be friends with its inhabitants, especially if they claim its their planet... your reasons (if similar to human behaviour) would be to settle, colonize, mine resources (or try to be friends to get their technology, then settle, colonize, mine etc.). Any alien civilization capable to actually reach us, even if originated on the closest stars of our own galaxy, would be most probably deadly to us and their arrival would be with high percentage in technological form (AI or whatever machines they would send to explore) as biological life (as we know it) is simply not able to withstand thousands of years of space travel (of course it could happen, but seems very improbable) ..and the cynical part of me: We are not even able to live peacefully with each other and we repeat the same self-destructive patterns since our ancient times...We destroy the only planet we are able to live on, we destroy other species and our self, our window of opportunity to actually go out there and explore space is so very limited, we will most probably run out of time before finding anything or travelling anywhere, not even inside of our own solar system... we sooner destroy our selves with nuclear power or by destroying our environment... If humanity cannot unite to reach a common goal, cannot even agree on saving their planet, we wont pass the great filter, there is no chance.

@erickshunn8498

2 жыл бұрын

I agree with most of that. But I actually strongly disagree with the fact that aliens wouldn't just visit to say 'hi'. To me that actually seems like one of the most plausible reasons to visit. If they have the technology to get here in the first place then it seems very unlikely that they would come here for resources or to colonize. There would be an astronomical amount of resources between here and wherever they came from. Why would they come all the way over here just to take the resources of a technologically less advanced species? There are countless astroids and empty planets they could take these resources from. And if our observations are anything to go on earth like planets aren't so rare that couldn't just find one without intelligent life if you wanted to colonize. It just seems like alot of unnecessary work to come here for resources or to colonize when it would be way easier to do that somewhere else that's much closer to them. If an advanced civilization comes to visit I don't think there'd be anything here that they'd be particularly interested in besides us. Especially considering how many resources it would take to get here in the first place. I don't think aliens would be trying to travel such vast distances if accumulating resources was that big of a problem for them.

@Amatsuichi

2 жыл бұрын

@@erickshunn8498 I agree with your arguments, all are valid, yet looking at it from a human-like behaviour point of view, If we would go somewhere, we would certainly go to colonize, there wouldn't be a way home trip - especially if we would do a long trip taking several generations of humans on the ship (using our current technologies). Imagine a similar intelligent species to us.. they don't actually have super over the top technology, they could be just a bit better equipped than we are and would need a very long time to get to us, most probably several generations as well if they would be biological in nature... if they would arrive here (what ever their reason would be for choosing our planet), wouldn't they try to settle (or conquer if possessing weaponry able to annihilate us)? There is a high probability we "humans" wouldn't be that friendly to alien visitors anyways (just look like we treat each other) and there would be nations trying to get their technology (if judged as superior to ours) and then exploit it to get power over the other nations.

@greenktoo

2 жыл бұрын

@@erickshunn8498 it could for our water Maybe it's more precious than gold to them. Or our soil. Maybe it would be precious to them. Or perhaps it could be for us. Who knows.

@yacom1118

2 жыл бұрын

The core of the Fermi paradox lies in a single civilization, in a single galaxy (e.g. Milky Way). Assuming space travel is feasible, it takes a split second for single civilization to populate the entire galaxy, relative to the age of our galaxy. Just think of it as an explosion. Math is simple: 20% speed of light, 10s to 100s of years to nearest star, then travel to 2 more stars from there, etc, and with 2 to the nth power, you populate the whole galaxy, without leaving a single inhabitable planet behind, in the order of 10s of millions of years, which is literally a split second when the galaxy is 10 billion years old. So why is there nobody out there? It means not a single civilization passed the Great Filter, across trillions of planets in Milky Way, and across billions of years. In other words, it's not a filter, it's a brick wall. Then what is this brick wall? Only two things are plausible to me. 1. Space travel assumption does not stand. Technology, no matter how advanced, will reach no where near 20%, or even 0.02%, or even 0.0002%, of speed of light. This is the single most likely scenario. 2. All civilizations eventually (and rather quickly) go extinct by self destruction or big asteroids. This is not nearly as plausible as No. 1 because if space travel is indeed feasible, it takes a single civilization which does not go extinct too quickly, to colonize the galaxy in a split second.

@Amatsuichi

2 жыл бұрын

​@@yacom1118 there could be even more "issues" or combinations between the points you mentioned... for example even if some civilization would be able to reach those 10% or 20% of speed of light, their travel to other planets would be one way trips and by trying to colonize them, they would probably face danger of new extinction events on those planets anyway... so being able to space travel isnt automatically a guarantee for space colonization. Just look at our troubles to even design something self-sustaining on Mars, or maybe even on our Moon. Other issue would be the disconnect between the home planet and the new planet (assuming a colony was successfully created there).. the offspring and new generations on such planets would most probably suffer from a lot of evolutionary adjustments due to the difference in size, gravity (and other factors) basically becoming a new sub-species of their species (unless they would find a perfect copy of their home planet of course). These evolutional changes could lead to even more issues with colonization etc.. So even if it looks good in theory to jump from planet to planet and colonize, its a big question mark whether it would really work like this and how many year would need to pass between those colonization attempts. Still even with a very low space travel speed, some technological civilizations could be using machines/AI to travel, as those things would be most probably existing thousands of years, able to renew/re-create old parts and not suffer from all kind of interstellar hazards. Although due to the low travelling speed, the home planet and its biological species could be already long time extinct at the time these space travelling machines would arrive somewhere. Still the question remains, whether technology is always the logical outcome of civilization... just looking at our own, we spent thousands of years without any "modern" technology at all and if some key inventions / milestones didn't happen (electricity, fossil fuels - motors, radio waves, gunpowder etc.), we would be most probably still going medieval. Another question is, do all civilizations automatically want to colonize - populate as many planets as possible, do they even have the resources to do it at a galactic level? Or is it sufficient to maybe spread to one different planet to ensure survival of their species... Our searching methods are not that advanced yet to say we can search and cover our own galaxy, actually we are far away from that... so to detect anything, we will most probably need a lot more time (sadly, it looks like we don't have enough of it). So for our species it looks like the Brick wall is real and it will simply filter us out. But still, there is a chance some other alien civilization could have made it and maybe someday, they find some remains of what once was the human race and will wonder what went wrong :) Personally though I believe there is life everywhere, its just not lucky and intelligent enough for space travel or passing the great filter... not so sure about a 2nd civilization in our Milky way though... even the 1st one isn't civilized enough :D

This truly puts things into perspective.

Other super intelligent alien civilizations may not want to interact with us simply because we have very little to offer to them… they may just observe us from time to time and find us fascinating/entertaining

@ToiletPlugger

2 жыл бұрын

"Earth doesn't even have the best Denny's."

@Stroke2Handed

2 жыл бұрын

If they're able to travel that distance, we'd be as interesting to them as fleas are to a whale.

@Ron4885

2 жыл бұрын

@@Stroke2Handed I agree Justa. If they are able to travel interstellar at the drop of a hat they could be familiar with dozens (or more) civilizations that are a whole lot more interesting than we are. We're more than likely hella boring.

@themagescorner

2 жыл бұрын

Maybe they treat us like we treat indigenous tribes under protection. Leave the earthlings to their land and traditions.

@O-D-P

2 жыл бұрын

@manuel ye that’s a good way of looking at it… if you look at this from our point of view, say we can travel anywhere in the galaxy or even other star systems in distance galaxies and we know of other civilizations there who have just mastered the wheel or even mastered flight.. would we want to make contact with them or just watch them learn and evolve

The thing is we keep looking for life within the “Goldilocks Zone” because that’s what seems to support carbon based life like us and all we know. However perhaps there is silicon based life that can exist outside of the zone. We have no idea of how particular Star systems have evolved so just maybe silicon was more prevalent for some reason in the evolution. Think about the diversity of life here and then multiply that by infinite amounts and then one might grasp the concept of the diversity of life in the cosmos.

@forzaazzurri1471

Жыл бұрын

The Goldilocks zone only matters because that’s where water is in liquid form (not ice, not vapor), the amount of carbon and silicon does not vary inside or outside that zone.

Great 2nd parter, just subscribed and hit the bell for all, great channel m8....bravo.

Everytime i watch these documentaries, AVATAR comes into my mind, cant wait for December to watch part 2,

I wonder how many other civilizations are asking the same thing, “where is everyone”? 👀. There has to be life that looks similar to humans and other life that looks like something that we never would think that intelligent life would look like.

@kellydalstok8900

2 жыл бұрын

And they may already have gone extinct a longtime ago, or they haven’t evolved enough yet to be called intelligent.

@GianFr3E

2 жыл бұрын

exactly, it makes sense that probably some form are intelligent and sentient and some more primitive, if any, but at the same time, most likely we share the same issues. internal conflict and too big of a distance to travel

@nighthawk0077

2 жыл бұрын

It's also possible that Earth was seeded with life by a higher intelligence. Many possibilities exist, including an advanced civilization that has already mapped out the entire Milky Way and beyond.

@CGKFPV

2 жыл бұрын

I wonder how many civilizations are asking that right NOW. The biggest opposition to us finding another intelligent life form is time. There could have been countless civilizations, since the big bang, that have already flourished and somehow perished. As I think we will also do, since we can't seem to get our s*** together. The chances of us existing at the same time as another is so small.

@adudewithlonghair5706

Жыл бұрын

Are we looking for the right size? These beings could be microscopic. The possibilities are endless.

It bothers me so much this can't be our main focus. Space. Let's figure it out! Boost science in schools, fund the research

The thing is that we only communicate by radio waves for a hundred and some years. We took 4.5 billion years to get here, and may only last for another 100 years before we destroy ourselves. This makes intelligent life just a blip in time and makes it much harder to coincide with other intelligent life blips out there in the universe.

@GH-oi2jf

2 жыл бұрын

Exactly. We have no idea how long a technological civilization survives, on the average.

@buu88553

2 жыл бұрын

It's not a blip though; it's a shockwave traversing the universe. Our 200 year long signal keeps going into the universe forever. 100 billion planets in our galaxy doing the same would produce artificial signal spanning 20 trillion years. Considering there's only 14 billion years to squeeze all that into, it ought to be noisy, unless something else...

If we are not alone, we are definitely that friend that no one invites to parties because we get drunk and smash things. I bet Mars was partying hard and then had to quickly turn off all their lights when we started sending probes.

@asmosisyup2557

Жыл бұрын

maybe 100,000 years ago we fled mars to earth after resources ran out in a last ditch effort, unable to re-establish our technology descended into the stone age. We might all use technology, but 99.99% of us have no idea how to create/build it.

Professor De Grasse Tyson - always fascinating!!!

Hey DR. Tyson! Awesome presentation!! From a Patreon supporter. Semper Fidelus. Keep looking up!!

Another way to think about it would be "If technologically advanced species are so rare, that they are usually alone in their galaxy, then humans are alone, but still not special, because everyone is alone." That way the Copernican Principle and Fermi Paradox can get along.

To few subs for a content like this, good job

Neale : I have researched Tau Ceti quite a lot . A G type Star system about 12 yr away. With 4 planets . Lets see if I can get this right . 1 inner planet inside the habitable zone ( too hot ) 1 planet comparable to Venus 1.6 x the size of Earth. 1 planet the size of Earth Sitting at comparable distance. as Mars is to Earth. 1 distant planet sitting outside the Goldilocks zone . The 2nd planet is the one that interests me the most . Planet F as it is known . 1.6 x the size of Earth , but with a mass = to Earth , due to low mineral content . Has a VERY different base compound than Earth Earth has a carbon base . Tau Ceti has a magnesium base. Magnesium is supposed to be VERY good for the Human body. Perhaps it has a high oxygen atmosphere also . My question to You is If F DOES have life on it . What would a magnesium based life form look like ? Would it be a plant like form ? Or more animal like ? Please feel free to use Your imagination . But with my limited knowledge of biology , I cannot even imagine what such a creature would look like . DML ( Mike )

A planet or moon orbiting around a star would be important if we want to factor in photosynthesis, which was a key factor for life on Earth. Just a comment... I realize that we should consider life that is very different than that on Earth. I love these videos and discussions. If we do ever encounter other life (aliens), and if they are much more advanced than us, I hope they are sympathetic enough not to disregard us in a manner that someone might view an ant before stepping on it.

The core of the Fermi paradox lies in a single civilization, in a single galaxy (e.g. Milky Way). Assuming space travel is feasible, it takes a split second for single civilization to populate the entire galaxy, relative to the age of our galaxy. Just think of it as an explosion. Math is simple: 20% speed of light, 10s to 100s of years to nearest star, then travel to 2 more stars from there, etc, and with 2 to the nth power, you populate the whole galaxy, without leaving a single inhabitable planet behind, in the order of 10s of millions of years, which is literally a split second when the galaxy is 10 billion years old. So why is there nobody out there? It means not a single civilization passed the Great Filter, across trillions of planets in Milky Way, and across billions of years. In other words, it's not a filter, it's a brick wall. Then what is this brick wall? Only two things are plausible to me. 1. Space travel assumption does not stand. Technology, no matter how advanced, will reach no where near 20%, or even 0.02%, or even 0.0002%, of speed of light. This is the single most likely scenario. 2. All civilizations eventually (and rather quickly) go extinct by self destruction or big asteroids. This is not nearly as plausible as No. 1 because if space travel is indeed feasible, it takes a single civilization which does not go extinct too quickly, to colonize the galaxy in a split second.

@toutou-lx7yl

2 жыл бұрын

Or it could be abiogenesis.

@EzraB123

2 жыл бұрын

We also have to assume that life would evolve to "want" to colonize anything. The dinosaurs probably never would have evolved to land on the moon no matter how many millions of years, our desire to push out and colonize the galaxy is directly related to our evolution, which is extremely specific to us. I think it's perfectly plausible, maybe even likely that a civilization can evolve to colonize dozens to hundreds of planets. But they likely wouldn't go beyond that, and are therefore limited to a tiny blip in the universe. If such a civilization exists, we would have no way of detecting them and vice versa. It's also possible that intelligent life would intentionally leave us to ourselves. We would do the same thing if we found life on Europa, we even do it to remote tribes on earth.

@CFox.7

Жыл бұрын

Talk about assumptions - who says anyone has to colonise ? really ? That is the assumption we need to address. If an advanced biological lifeform can sustain its sentience or even place its sentience into a robotic structure or computer simulation then it doesnt need to colonise any other goldilocks planets - it only needs to provide energy for its systems. We dont even know what those energy demands are.

We've been talking about wormholes and interstellar travel since before we thought it was possible. We've seen theories about time crystals since before it was proven. Maybe "nothing is impossible" is a little too true.

The idea that something physical could go anywhere near even 20% the speed of light sounds so ridiculous to me. Not just because we're so much slower than that now but because the kind of force required to do so seems like it would just rip any kind of space ship apart. I haven't seen anything to convince me that space travel will ever be possible at such high speeds.

@rhensontollhouse

2 жыл бұрын

Which is why the objects documented as being observed by the USN (multiple sensors at multiple locations plus visuals by multiply highly credible individuals) are intriguing. They purport to violate the laws of physics as we understand them. Anything is possible, the universe is huge beyond imagination.

@Silmerano

2 жыл бұрын

@@rhensontollhouse I'm not sure I buy into all of that. These people generally are military or work for the government. The whole thing could be fabricated. We live in a world where everyone carries HD video cameras in there pockets. If UFOs existed and were here I feel like there would be better footage of them.

@Stiggy767

2 жыл бұрын

Force is a factor of acceleration, not speed. If you continuously accelerate at a moderate rate you can achieve very high speeds without huge force.

@rhensontollhouse

2 жыл бұрын

@@Silmerano Which is why Congress has tasked the military and NASA to get more data. Are these objects real, or a fabrication? The problem with saying they are fabricated is there are a number of highly credible eye witnesses who also have multiple sensor data of the same event. Also, physicists and cosmologists understand almost nothing about space-time, dark energy and dark matter other than it is about 95% of what the universe around us is made of. We have a great deal still to learn.

@rhensontollhouse

2 жыл бұрын

@@Silmerano Also, about better footage. Congress has been shown far better video and sensor data than is being released to the public. Those that have seen the “footage” are convinced this is real. Why not release it to the public? Then potential military opponents would know the current US military capabilities and counter and pr copy it. So the national security issue is real. Hopefully NASA can be the solution.

Carbon is abundant where we have looked, but I wonder if it is possible and I'm sure it is that there are places where Silicon would be in the majority.

@GH-oi2jf

2 жыл бұрын

There is no need to suppose that life could also be based on silicon. We understand carbon-based biochemistry to some extent, but not how to originate life forms. We know nothing about silicon-based biochemistry, not even whether there is such a thing. If there were, it wouldn’t change the probabilities by much, so there is no point even considering it.

Aliens saw our social media & said, “Nah, they’re fucked. Keep driving.”

The solution to the Fermi Paradox? Could it be that all developing civilizations find bio-weapons research irresistable and few if any are able to survive the Pandora's Box that opens?

@rileyfaucett8

2 жыл бұрын

Great filter, ye

@HostageAsker

2 жыл бұрын

No. The Fermi Paradox is a thought experiment outlining a huge what if based on the size and length of time of the universe. Pondering why exactly we haven’t spotted anyone else. The great filter is what you’re comment is much more adjacent too. I personally do believe there are other intelligent beings whom for whatever reason have fell pray to the great filter, for whatever reason. But, life tends to keep on pushing on no matter how hard it is broken down. I believe the great filter is a good explanation for the length in which it takes for the universe to sprout interstellar life. But past that, I know we are not alone. The oldest galaxies and stars are some 13 billion years old. And the universe is so vast that it is likely it took life up until only 10’s of millions of years to either reach or slightly surpass where we are now. It is also likely some ARE interstellar, yet they took a proverbial “wrong turn” and missed other intelligence simply by going the wrong way. Thus making contact either never happen for them or vastly elongating the process.

@AcidRiotGaming

2 жыл бұрын

That's one of the main ideas behind the paradox

For me it's either we are alone in this whole gigantic universe or there are many civilians out there but some force is keeping us away from each other.

@donkique956

Жыл бұрын

Yes, that’s right. Star distances is that force.

@davehoward22

10 ай бұрын

Yep,distance and human lifespans.

Imagine aliens coming past our planet 500,000 years ago. Why wouldn't they have stayed?

@davidmccarthy6061

2 жыл бұрын

Maybe it isn't habitable for their biology.

@anemul266

2 жыл бұрын

maybe they did in someway, maybe we are their descendants.

Keeping in mind the speed of light, let's say the nearest planet with a highly intelligent species is 1000 light years away- relatively close in astronomical terms - and somehow, with their advanced technology (magic to us) they could see what's going on here on earth. What would they see? The earth in the 11th Century, during the late Dark Ages, with the closest thing to real technology included the clock, the building of cathedrals and the plow. Would this possibly interest them at all- who would they even communicate with?

So there's no chance it's a megastructure? Aww, man! **

So "Part 1" is not labeled as such? We are off to a good start here.

@anniejuan1817

2 жыл бұрын

It's kind of like World War I wasn't WWI until there was a World War 2. I had no problem finding part 1 - I'm sure you will find it, too.

I have a crystal I found at a shop in Albuquerque. Its actually an alien, it talks to me and tell me to do things.

@johnjack902

Жыл бұрын

Kool

Interesting ideas about maybe why we can’t find intelligent life out there, but let’s not forget the most obvious reason is still that it simply hasn’t been there.

@Silmerano

2 жыл бұрын

I think the clear answer is that space is really big and traveling through it is really hard and traveling at interstellar speeds might even be impossible. Life is common on our planet but in billions of years only one species has gotten to a point where they can leave the planet and only barely. 1 out of trillions. Even if the universe is full of life that doesn't mean it is full of life more advanced than us that is close enough to us to make contact. We could even be the most advanced civilization in this part of the universe.

@Jess33x3

Жыл бұрын

@@Silmerano exactly what I was thinking. We could be the first intelligent life, if not, the very few in our galaxy.

Why was the Video going back & forth between Neil & the other voice? Was that Science Time? just do 1 or the other.

Hans is the only one to touch upon the first and most important element of communicating with other civilizations: time. Give our little species 10,000 or go crazy and make it 15.000 years in existence and draw a circle around that point in the timeline of the 15 billion years of the universe. How many other civilizations may have come and gone within similar bubbles, never intersecting. The vastness of time cannot be underestimated in keeping us alone.

What sucks about all this is that as human beings, we are limited to a microscopic lifespan so to say, so no matter how much research you do, how deep into space you get, you will never get to the bottom of this. Especially since space itself is not measured by distance per se, but time. Not enough time in the universe to get to every nook and cranny and shake everyone's hand

I’d ask to know the formalwear to a warm hole that can take us anywhere we want.

Are there things that happen fewer and fewer times until only happen once?

How about this: The universe is infinite. The probability of self-aware, intelligent life is infinitesimal, but not zero. In an infinite universe, everything that is possible must occur somewhere, somewhen. There is other life in the universe, it is just an infinite distance away.

Until we can get along and every nation can work and build a planet size starcraft to explore with

What if the entire universe is a form of life itself and we are just like a parasite within it? I've thought about this many times. Yes it's outside the box but I like outside the box.

@LuisC-xo9io

2 жыл бұрын

I thought I was the only one

@blackweb5069

2 жыл бұрын

Exactly

@johnjack902

Жыл бұрын

How bout that

I’ve got two possible counter arguments to the Fermi paradox: 1. The signs are all around us and we’re just not smart enough yet to know how to see them, or 2. The rest of the galactic civilisations consider us too barbaric to interact with so they’ve put a massive perceptual filter around us to make sure we can’t see them.

@EzraB123

2 жыл бұрын

Or they avoid us for ethical concerns. We would most certainly do this if we found life on Europa. We also do it with remote tribes on earth.

@TAPATIOPLEASE

Жыл бұрын

I believe its 1. Quantum communications that allow instantaneous signals will be the onlyway, even radio waves travel at the speed of light meaning itd take thousands of years to even send a signal to potentially inhabited planets. A greater understanding of physics is needed, a good start is the UAP phenomena, the DOD, universities and the scientific communities must come together to figure out how it works, where it's from and how we can replicate the tech.

@seancooney8799

Жыл бұрын

I am more partial to the signs are there but we can't detect them or dismiss them. The scientific community has been a little bias when it comes to alien life. Take the Radio , we have been using electromagnetic waves to send information for over 100 years but if you had a 5G phone and someone 5 miles down the road had a WW2 radio they would not be able to detect or speak to you , even though the underlining basis of the technology is the same. That's why I think right now using the James Webb telescope or it's next generation to see what exo-planets atmospheres consist of might be a much better way of detecting life and possibly intelligent life.

Perhaps it's because we're the only intelligent life forms within reach of ourselves. Maybe the closest super intelligent beings are simply too far away, and are having the same debate. Or there could be civilizations whom already contact one another but are also out of our reach, so since they know already that they are not alone, we or other life in the galaxy in general, because too insignificant to continue to search for. In that case, it's likely we will be discovered eventually should we survive eachother.

Am I the only one that thinks "megstructures" are absolutely ludicrous and unreasonably in likely for how often it is brought up?

He says that if you were a life form thriving at the bottom of the ocean from the mid-sea vents, you wouldn’t care about orbiting the sun because you wouldn’t need it. Yet he contradicts with what he says earlier in the video. “Life needs & thrives on liquid water.” Well you only get liquid water aka the ocean, when you’re in the Goldilocks zone of the star system.

Can silicon be dated?

I'm still trying to work out how 150 amino acids combine to make a simple protein. Can someone check the maths on that because the time taken is more than the length of our universe, x10 to the power 126. Am I missing something?

@GH-oi2jf

2 жыл бұрын

You are missing an explanation of what, exactly, you are trying to calculate which gives you this large number.

@robberlin2230

2 жыл бұрын

@@GH-oi2jf protein of say 150 amino acids long?

@robberlin2230

2 жыл бұрын

@@GH-oi2jf of I do the mathematical sum it comes out to 10^126, but that would be more than the number of particles there are in the universe, am I missing something?

@toutou-lx7yl

2 жыл бұрын

There are 20 different types of amino acids. To calculate the probabilty of forming a single protein composed of 150 AA, then the equation is 20^150=1.42×10^195 But what you also need is the correct DNA/RNA sequence, which is 4^450=8.45×10^270 which is more difficult to get than the protein.

@robberlin2230

2 жыл бұрын

@@toutou-lx7yl agreed, not enough time, not enough planets not enough faith to believe in the spontaneous existence of life, let alone a protein

Was thinking that we could be the first or part of the few intelligent life to emerge in our galaxy. Older galaxies could have high intelligence aswell

Star Trek TOS had a silicone life form called a 'Horta'. cool stuff

The galaxy is swarming with intellient civilizations, just not around the 100 light year Cthulhu Quarantine zone. And that's where we happen to be.

@muratkzlkaya5929

2 жыл бұрын

how do you know that

@peterwoods8299

2 жыл бұрын

@@muratkzlkaya5929 he is cthulhu

@muratkzlkaya5929

2 жыл бұрын

why don't we see them

@peterwoods8299

2 жыл бұрын

@@muratkzlkaya5929 you've assumed we're such a great civilization, we can see anything. What I'd they don't want to be seen? What if they're an entirely different lifeform than us, what if they're still single cell organisms? There's a lot to factor into consideration, the primary being the speed of light, we still see things as they were years or millions of years ago

@Amatsuichi

2 жыл бұрын

@@muratkzlkaya5929 we have problems to see or detect objects inside of our own Solar system...we are at the very beginning of anything close to space exploration and our methods of detection are rather primitive... we are basically blind and would be most probably able to see an alien civilization ONLY if they would do everything they can to let us know by sending light signals (and as written above - 100+ light years means we would anyways see signals from something which isnt even existing anymore)... the distances are just so vast

🚀🚀🚀

I have yet to see a mathematical equation calculating the number of civilization or even planets with any kind of life on it besides our own. To me this shows that nobody, even NGT does not know how many, if there are any, other life forms in the universe. For all we know we could be alone, or we could not be, and right now we don't know. Sometimes the best answer is "nobody knows"

@Mav3rickShorts

Жыл бұрын

It does exist, its called the Drake Equation

@Ffollies

Жыл бұрын

@@Mav3rickShorts I know about the Drake Equation. It's irrelevant because it contains a whole bunch of values which we have no idea what they are.

Think of these facts or near facts: 1) All life evolves on objects like planets because life requires consumable goods to create energy. There's simply not enough such stuff anywhere except on things like planets where stuff can grow. There's simply not enough of that in "empty" space. 2) Hence all life evolves on something that has extremely limited finite resources. 3) Hence life must evolve in a competitive, cutthroat manner so that scarce resources don't run out. If everybody shared, resources would become really low for certain species immediately and for all of them in relatively short order. 4) In order to expand beyond the "planet", extreme technology is needed (at least it's "extreme" compared to what would arise naturally). 5) On earth, and probably elsewhere, this means that nuclear fusion would have to be attained and become readily available. 6) With ready availability, that means EVERY human has access to pistol-sized fusion devices that are capable of blowing up entire cities all by themselves with one shot. 7) So suddenly EVERY person, down to the smallest child and the dumbest dolthead, must suddenly shed ALL competitiveness and become 100% caring of everyone else's feelings. If one human is ever upset, they can start the dreaded Mutually-Assured Destruction that right now only a handful of people on earth can do. There has to be TIME for everyone to be converted to kind, caring, sharing, loving individuals while still not having enough resources yet for everyone to have everything they want. 8) Hence, I see NO WAY to transition from a competitive species to a kind loving 100% caring of everyone species before someone starts the chain reaction that blows everyone up. Conclusion: Because of the competitive nature that an evolved species must have, because of extremely limited resources on the planet before some miraculous way to manufacture food etc. on devices like a replicator on Star Trek can be found, we will use technology first in a competitive or angry way, and will blow ourselves up. Find a way to overcome that, and we can talk. Otherwise, there is no reasonable way to advance to that level of technology to explore the stars before we blow ourselves up. It only takes one angry person out of billions, or one child, or one low-IQ person, to kill everyone.

Which great mystery would I solve? Interstellar travel or wormholes

@donthesitatebegin9283

2 жыл бұрын

They are fantasies, not mysteries.

@noelguerrero7353

2 жыл бұрын

@@donthesitatebegin9283 you’re new around here aren’t you

@donthesitatebegin9283

2 жыл бұрын

@@noelguerrero7353 Where is "here"? Woo-woo-land?

It's plausible that an interstellar civilization exists on the other side of the galaxy, but even if they colonize hundreds or thousands of planets, we would never see or hear from them and have no way of detecting them and vice versa. We also have to assume that said life would have evolved to "want" to colonize other planets, and form some type of political civilization.

Why do we expect an advance species to “colonize” everything and be everywhere? That’s what we would do, but they are advanced for a reason. If I was truly advanced I would make sure my species was not spread out, but stayed in one small location to facilitate communication and reduce the risk of evolutionary divergence. The laws of the universe state that things concentrate rather than dissipate, for example 99.86% of the total mass in solar system is found in a relatively small dot, the sun. So we should expect that the vast majority of the most intelligent life is located somewhere in a single planet or solar system. We do the same with cities, we concentrate ourselves in one place. So it makes sense that the Universe looks empty to us.

@stewiesaidthat

Жыл бұрын

Stars eventually blow up and spread themselves throughout the cosmos. Cities eventually crumble and decay when they can no longer import enough raw materials. Intelligence is derived from curiosity. Eventually, someone is going to want to build a spaceship and see what is out there.

@forzaazzurri1471

Жыл бұрын

@@stewiesaidthat So if life is equally spread out throughout the Universe it should then be visible to us in every single planet, moon, star system. But it is not. If you were randomly dropped on a point on planet Earth, you will likely end up in the middle of the ocean, and you would say “There is only water around me, life doesn’t exist here.” You would have to swim for months to even find a small fish near the coastlines.

@stewiesaidthat

Жыл бұрын

@@forzaazzurri1471 never said it was equally spread out. Just that it doesn't remain concentrated forever. Once the fuel supply is used up for that locality, the vast migration begins. Just because you are to lazy to do some exploring doesn't mean everyone else is.

@forzaazzurri1471

Жыл бұрын

@@stewiesaidthat That’s a part of the cycle, when a supernova explodes and dissipates, all the atoms end up joining other clusters of matter. If you look at the web of the universe you will find huge holes and thick webs of matter where matters gathers due to attraction. I like to imagine advance life forms tend to stay together rather than dissipate in the nothingness.

Maybe there is planet explorers that have leaders deciding not to interact with any other planets like when we have places we will leave primitive people alone

Honestly, it feels like excuses when people argue that "there has to be other intelligent life." Saying things like we wouldn't recognize it, or it might be hard to detect, etc. Patterns are followed even when unrelated. Two bird or fish or whatever species might be near totally unrelated, take a dolphin and a trout for an extreme example of a mammal and a fish. Despite the enormous differences, simple patterns form from their aquatic environment in terms of having a very similar shape and method of propulsion with a two pronged tail and fins. It's simply the path of least resistance toward existing in water. Technology follows the same. Any technology that gets to pre-modern is going to have tools for cutting vs tools for blunt hitting, wheels and axles and whatnot. There's really no other way in a gravity based environment. Likewise no matter how alien, it is very hard to think that discovery and use of electricity and radio and whatnot would not come into play. The very argument that "life must be common" also leads to the conclusion "radio must also be common". Even if some creatures don't go that way, again given the "common" element there should be enough to have detectable radio waves in our galaxy. As noted we've had only about 80 years of this technology and we've already broadcast a ridiculous amount of obviously not natural radio waves and other "could easily detect as not natural" signals. The fact that "common life" doesn't create "common signals of life" implies that life isn't common at all.

The answer that I'd request is how to upload our minds to simulations, to earn virtual immortality

The thought that scares me about alien life is that any species that survived long enough to develop interstellar travel would have had to be the top predator on its planet...

I have a different approach. I think we live in an exception of the electromnagnetic spectrum and most of the universe exists at level where dark matter exists or maybe its completely non-material and the basic nature of the universe is spiritual. Maybe they dont even know we are here or are completely amazed by our mortal material existence and immortality is just the normal way to be.

More variables in the equation then we know

I propose another possibility not yet covered, they're really really really tiny.

@vaibhavtiwari6870

Жыл бұрын

I almost thought the same can't species equal to ant be intelligent in some other solar system

They’re not visible to us but they are around

Why we automatically think that interstellar travelling has to be life's inevitability? I say that we humans ourself are right now way closer to invent virtual realities rather than discover interstellar travelling. Maybe that's where all the aliens hang out. In the subspace-multidimensional net because they found out that infinite options of virtual realities are way more interesting to explore than our limiting existence in that very finite black empty void called the Universe.

Oh hell ya', as Mr. Fermi asks "Where are all the reptoids?" 😏

Hey buddy, I work for Sirius.

We are Alone in the universe and doing our best to change the 'ARE' into 'WERE'...

@chuckmosley5831

2 жыл бұрын

We simply aren’t tho

@kellydalstok8900

2 жыл бұрын

@@chuckmosley5831 I’m sure there’s life in many places in the universe, but is any of it intelligent?

@user-wb7nv9ht1g

2 жыл бұрын

We we're alone, or we wear alone?

@lilbullet158

2 жыл бұрын

Tut, me and my nescience

@GianFr3E

2 жыл бұрын

@@kellydalstok8900 and even if it is, i think they most likely have the same problems that we do, in a form or another

Why care? How about we feed the people.

@davidmccarthy6061

2 жыл бұрын

That isn't a priority for this species, unless it gains you something (money, power, etc.). We've gotten this far despite ourselves. The question is how long will that last.

@xhysteriaahh

2 жыл бұрын

🎯

How can scientists consider the drake equation when it is based on suppostion?

My take - is there life (even intelligent life) outside of Earth? Probably. Will we ever find it? Probably not. It's as simple as that. Stars are too far apart from each other.

@rhensontollhouse

2 жыл бұрын

Agreed. However, intelligent beings far superior to us may know about us already.

We're always seeing the beginning of the universe let's say there's a planet like ours every thousand million light years on a scale of one to forever that's a lot

The notion of (Von Neumann machine) self replicating robots, seems to deliberately ignore necessary practicalities. The machine must locate, mine and process minerals to create materials - including creation of alloys and synthetic materials, in sufficient amounts to build new machines. Those materials would have to be formed into complex shapes and constructions (things currently produced in complex specialist manufacturing sites), then assembled. All this despite whatever environmental hazards there are. Fuel sources would need to be obtained and loaded into the new machines. Once built, the new machines would need to be programmed with new destinations, and the knowledge of previous destinations so they don't unnecessarily repeat (plus avoiding destinations programmed into other probes launched from other sites etc.) The probes would have to allow for the movement of new destinations through space over the decades of travel time, have sufficient fuel to slow down and land while taking account of the new destination's different gravity, rate of rotation, and geology. Even if we could accept the possibility of very complex machines able to do a range of specialised tasks, under very different conditions, without breaking down or failing at any part of any task - there's the inevitable question or two... Why bother? What is gained?

"We obviously consider ourselves intelligent life" unproven, and seems further away every day

And pray that there's intelligent life somewhere out in space, 'Cause there's bugger all down here on Earth! - MP

Rather than look back 13 billion years for a starting point for life to begin the question needs to be asked why life started at the time that it did 3.7 billion years ago on earth. Could it be that 3.7 billion years is the starting point for all life in the universe.

It’s a dark Forrest. We are making to much noise as it is.

maybe they're always around us, varieties of The Flash (superhero) species or Martian Manhunter's phase state but permanent or only connected/rooted to the afterlife and spirits can only "bungee" into the physical dimension. Edit: Until their regret is helped??? Beware of demons pretending to be ghosts though and scammers. We don't deserve any other transcendance than of the lives we have now, the planet's still going shit, why would any higher beings help us when we can't even keep the "house" (planet) up

The real question is not if there is life out there or not. Statistically speaking that is a foregone conclusion. The real question is "How much of it is alive RIGHT NOW?" Our galaxy has been capable of creating life for more than 5 billion years...and millions of civilizations could have come and gone in that time. We will likely find more archeological ruins than intelligent civilizations.

Intelligent extraterrestrial life is out there, but I question whether or not it’s terrestrial.😜

~1:50+.... Who's to say that earth was not seeded this way???

Are we looking for the right size? Foreign beings could be microscopic. It could be an entire advanced civilization smaller than Bees leaving little to no heat signature while possessing an unknown power. The possibilities are endless. We have searched our observable universe for life, as much as we would’ve searched for life in all of our existing oceans on earth with an 8oz glass. There is no question to wether we’re alone or not.

Its there man 😋 they looking at night up and see the sun as a star.. must be so

Second thought: By definition there has to be a first civilization to get to the point where we are. We've weened ourselves from the arrogant thinking that we are the center of the universe....but what if we're wrong? What if for once our egotism is correct? What if we are the first? I, for one, would be ashamed at what dumb animal legacies we'd pass on to the next sentient group. Luckily I'll never know.

This also makes the assumption other life even exists in the third dimension

What was before the bang! Are we alone in the universe is stupid, of course we are not.

@Amatsuichi

2 жыл бұрын

we dont even know there was a bang... its just a theory

The Fermi paradox in the near future will be resolved. The JWST is currently looking at some of the oldest galaxies in the universe. As technology evolves even beyond the JWST life on other planets will be observable. What is the point of a universe that cannot become aware of itself. Consciousness is the mechanism where the universe becomes aware of it self? Viewing the creation process from the big bang onwards there would be no reason to minimise consciousness in the universe or restrict variation on it. This is why I believe the Fermi paradox to be a temporary conundrum.

Time Travel..got some things to fix!

im hungry

This theory assumes that other life or intelligent life has advanced technology. When it just possible they have the same technology as we do or less. Why is it assumed they always have superior technology? And just because earth living being require certain elements to live or exist, doesn't mean that other life or intelligent life requires the same as that as on earth. What if other life forms out there, are further advanced technologically, but they require much different elements to survive? It's possible that elements on earth is deadly to those alien life forms.

WHT is dark matter, and how we can use it to our betterment. Once we know this, then we may be able to travel beyond.

It seems to me that superior intelligent life forms that have passed thru the Great Filter process would not want to enable our advancement off the planet until we had matured as a civilization and gone thru the Filter process. Mankind needs to mature, grow up, become connected at a higher levels. We're like angry adolescents whose first and second responses are to fight. Our base instincts are so easily manipulated, our humanity supressed. The Filter is probably going to be effective again with humanity.

Other advanced life forms may see us as we see a small ant colony. We might notice it but not think it's worth our time to pay much attention to it. Or, what if they are so advanced that in comparison we are so primitive that they might not even know we are trying to communicate with us. Imagine a fly coming into your home and it's trying to communicate with you while you just swat away the annoying pest.

10:20 Tyson says he doesn't really need to think of alternate based lifeforms because carbon wins on abundance, but it probably never will win through self driven evolution. Power, progress, and efficiency will surely win out over abundance as long as its abundant enough. Carbon should become obsolete everywhere and early in the process, unless and only if it is the most optimal. And this is unlikely. Over billions of years (or howerever long it takes to aquire intergallactic radar/travel), the most likely way to drive evolution should end up in a form powerful, efficient, and progressed enough to be completely undetectable to us as longs as it wants to be. I highly doubt its carbon. Billions of years of technology, we can't even begin to imagine. 🦋

I like how extraterrestrials have eyes, ears, noses, faces, heads, ears, etc., just like we humans do. In other words, that's called mankind fabricating extraterrestrials in man's image. Face up to the fact that we're all alone in the universe.

@eizenhalft

2 жыл бұрын

And how is it that you know this? Just curious. It's a bold statement. "Face up to the fact..."

@peterrichards931

2 жыл бұрын

@@eizenhalft Extraterrestrials haven't been to planet earth in billions of years. I don't imagine they'll ever.

@eizenhalft

2 жыл бұрын

@@peterrichards931 How do you know life does not exist elsewhere in the universe, though? Our having been or not having been visited being taken out of the equation.

@6dokpas

2 жыл бұрын

Have you ever heard about the term convergent evolution?

@rhensontollhouse

2 жыл бұрын

Beings that look anything like us are unlikely. However life far more advanced than we are is indeed likely. Given universe may very well be infinite, and most of it is unseeable.

Everyone is here on earth

Do aliens prefer milk or dark chocolate m & m’s🤔?

If there are other "civilisations" outside, how long will they live? What is with Earth? We destroy our planet and we think: somehow we will survive! We are intelligent! Could it be?

They were here a couple billion years ago. We are thr product of their visit

Of course I don't know there are three civilizations in our galaxy. That was just a what if.

My big concern with alien life visitors is that after a voyage of 1000 plus light years coming to earth... well, that is a one way trip! I don't think who ever contemplates a trip of that length will just drop by for tea and biscuits then go home. That opens up many issues: Why would they come here at all? Scientific curiosity? Hmmm? Going back may be problematic for them cuz returning they may not find things as they were on their planet as when they left it (assuming things were good and they'd want to return). I dunno folks. I think it is a good thing we are on the edge of the galaxy and off the beaten path. Just saying!