The Eternally Inflating Multiverse | Delia Perlov | TEDxTufts

Delia Perlov’s research interests are focused on the eternally inflating multiverse​ and touch on various aspects of cosmology, string theory, quantum field theory and general relativity. She got her MSC and
Ph.D. from Tufts University and then spent several years working as a postdoctoral fellow, also at Tufts, where she now lectures on a part-time basis. Her first book, “ Cosmology for the Curious” (co-authored
with Alex Vilenkin, 2017) aims to bring anyone with a cosmological sense of wonder and a facility with high school algebra up to date with modern cosmology. Her personal multiverse includes her husband and her three children. She loves playing the piano,
yoga, drawing, ​and painting. Delia is preparing to get back to her research interests after several years spent writing a textbook on Cosmology, and several personal projects. She is also teaching a class at Tufts this summer called “ Cosmology for the Curious”. Her talk explores the multiverse phenomenon. This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at www.ted.com/tedx

Пікірлер: 63

  • @gavinschwartz
    @gavinschwartz3 жыл бұрын

    That's my sister!

  • @Challenger4200

    @Challenger4200

    3 жыл бұрын

    You should be proud

  • @gabeheartz13saravia97

    @gabeheartz13saravia97

    2 жыл бұрын

    Would false vacuum be the quantum fluctuations that pop in and out of space!?

  • @StaticBlaster

    @StaticBlaster

    Жыл бұрын

    If she's really your sister, then what was the name of the Brian Greene program she was in? And what's the title of the episode?

  • @gavinschwartz

    @gavinschwartz

    Жыл бұрын

    @@StaticBlaster I don't remember the eposide name. But I do remember her becoming interested in Astronomy and Physics at a very young age (like 5), and when she got her first telescope. Our whole family was fascinated with the universe. The skies in the Southern hemisphere boasted the entire Milky Way for us to look up at. Many dinners spent discussing and arguing the mysteries of the universe. And from our dinner table to TedX - very proud. And people said I was the smart one in the family ;)

  • @StaticBlaster

    @StaticBlaster

    Жыл бұрын

    @@gavinschwartz That's a really fascinating story! I too am really into astronomy and cosmology. I find it very uplifting and somewhat "spiritual" if I could call it that. It's poetic that we are stardust. Also, the name of the program I was talking about is based on one of Brian Green's books called "The Fabric of the Cosmos" and the episode in which she appears is called "Universe or Multiverse?" She shows up near the end of the episode at around the 40-minute mark. If you have the time, you should check it out.

  • @StaticBlaster
    @StaticBlaster Жыл бұрын

    She's very lucid, clear, and an excellent communicator. Props to you, Delia.

  • @dannybrook3611
    @dannybrook36115 жыл бұрын

    nicely explained

  • @dovedeep
    @dovedeep4 жыл бұрын

    Goddess bless her for finally explaining this to me

  • @SevenFootPelican
    @SevenFootPelican3 жыл бұрын

    I just can't wrap my head around it. And I thought our actual (not observable) universe was huge... but to imagine it as an expanding bubble within a larger vacuum of eternally expanding space containing other "actual" universes all within it is insane. I don't know how we'd ever be able to prove something like that. I guess from there the question still remains: what triggered this reaction of bubbles within a bubble. And is this bubble containing these bubbles of universes just a smaller bubble in something else?

  • @jamiehall-hanlon3104

    @jamiehall-hanlon3104

    2 жыл бұрын

    And then what relevance would these bubbles have in their realms. It’s unfathomably scary the deeper you get and it’s relieving to ground yourself in our earth and what we know. But I think we will have to face these colossal sooner or later after this life. Every one will.

  • @flickedbic

    @flickedbic

    2 жыл бұрын

    I think the way to tell is if we observe our bubble touch another. We are looking out, but it seems very unlikely.

  • @felixfelix4218

    @felixfelix4218

    Жыл бұрын

    The next question is: has it ever started when it is infinite?

  • @naveenthiruveedhula
    @naveenthiruveedhula3 жыл бұрын

    How to tag questions on cosmic view

  • @jonathandawson3091
    @jonathandawson3091 Жыл бұрын

    Very cool. I would point out though, even though it will mean our (almost) clones exist, they will be incredibly hard to find in mind bogglingly large number of universes where they don't. Well, and the word "find" has only mathematical connotation here to be clear, as we can never communicate with these universes moving away far faster than speed of light as she explained.

  • @paras3681
    @paras36813 жыл бұрын

    is it still the best theory? any updates on inflation ??

  • @djstewart2012

    @djstewart2012

    3 жыл бұрын

    A bubble

  • @phy29
    @phy293 жыл бұрын

    What is the strenght of the neant but i know that life has a strenght the will of existing ....

  • @Lionking246
    @Lionking2463 жыл бұрын

    6:57

  • @stevefaure415
    @stevefaure4152 жыл бұрын

    She's pretty cool.

  • @timgreen8597
    @timgreen85972 жыл бұрын

    if there are an infinite number of ways that the entropy of inflationary perturbations (uniform mass of matter and energy that existed milliseconds after the big bang) can be different and an infinite number of e folds of the slow roll inflation can be different, if there is an infinite number of ways that the value of entropy at the big bang and value of mass at the big bang can be different, If there are an infinite number of ways the average density of normal matter can be different, If there are an infinite number of ways the density of dark matter can be different, If there are an infinite number of ways that the density of dark energy can be different, If there are an infinite number of ways that the cosmological constant can be different, if there are an infinite number of ways that the ratio of dark energy to dark matter to normal matter can be different, if there are an infinite number of ways that the value of entropy and density at the big bang can be different, If there are an infinite number of ways that the laws of physics can be different, If there are an infinite number of ways that the constants of nature are different, If there are an infinite number of ways that the string theory vucua can de different, If there are an infinite number of ways that the string theory geometry can different and finally if there is an infinite number of ways in which the strength of the inflationary field in which new universes are created are different then how is it possible that our exact lives are being relived right now in another bubble somewhere else in the inflationary multiverse and how is it also possible that the exact history of our bubble universe be repeated in another bubble universe of the inflationary multiverse.

  • @ashley_brown6106

    @ashley_brown6106

    2 жыл бұрын

    There can't be an infinite number of anything. It's been proven to be logically incoherent and therefore impossible. Infinity can only exist as a concept in our minds.

  • @pradyumnyadu2662

    @pradyumnyadu2662

    Жыл бұрын

    There's possibility of the same to be infinitely and also with a little difference or with a lot of differences.

  • @ashley_brown6106
    @ashley_brown61062 жыл бұрын

    Also our universe is not a bubble, it's flat. Like, completely flat.

  • @aliusaho7537

    @aliusaho7537

    2 жыл бұрын

    in theory yes but not as fact

  • @republicofsandles
    @republicofsandles3 жыл бұрын

    I thought Wall Street triggered inflation ; )

  • @StaticBlaster

    @StaticBlaster

    2 жыл бұрын

    yes in fact cosmology borrowed that word which describes the increase in price over a period of time except in cosmology it describes the increase in size rather than price over a very brief period.

  • @republicofsandles

    @republicofsandles

    2 жыл бұрын

    @@StaticBlaster Oh okay that makes sense.

  • @felixfelix4218

    @felixfelix4218

    Жыл бұрын

    Wallstreet financed the universe

  • @jakejake6031
    @jakejake6031 Жыл бұрын

    Afterlife exsist

  • @StaticBlaster

    @StaticBlaster

    Жыл бұрын

    I don't think you understand how the burden of proof works. I explained this to you in the Sean Carroll video in which he debunks the afterlife claim. And quit trolling and spamming the comment section with your baseless assertions.

  • @jakejake6031

    @jakejake6031

    Жыл бұрын

    @@StaticBlaster Your claims are baseless. Sean Carroll didn't disprove anything. At least he fell to the ground. You stop spamming your baseless claims about nothingness after death. We need to educate about the fact of life after death.

  • @jakejake6031

    @jakejake6031

    Жыл бұрын

    @@StaticBlaster Afterlife exsists. 🙂

  • @jakejake6031

    @jakejake6031

    Жыл бұрын

    @@StaticBlaster I debunks Sean Carroll claims.

  • @jakejake6031

    @jakejake6031

    Жыл бұрын

    @@StaticBlaster Eternal oblivion is impossible.

  • @danielducken2843
    @danielducken28432 жыл бұрын

    It certainly could be the case, I suppose, but with no real evidence given, I have to think it infinitely more likely that it simply makes for a really good gig for pop cosmology shills. I looking at you all Michio Kaku and Neil DeGrasse Tyson.

  • @luigicantoviani323
    @luigicantoviani3232 жыл бұрын

    Inflation = fantasy. Delia, tell the audience about all the fine tuning required for inflation to work. Allan conveniently avoids mentioning all the non sense associated with it, Same with Alex and Andrei, and you are one of his students...no wonder why.

  • @ashley_brown6106
    @ashley_brown61062 жыл бұрын

    Nice theory until you realize that an actual infinite number of things is logically impossible and therefore cannot exist as anything more than a concept in our minds (this has been proved, actual infinity is full of paradoxes and fallacies). It can be inconceivably large but NEVER truly infinite. This whole thing reminds me of infinite regression which is of course impossible.

  • @razony

    @razony

    2 жыл бұрын

    You live in a very small box Matina. A small, flat box at that.

  • @kennethyoung7564

    @kennethyoung7564

    Жыл бұрын

    Infinite regression is true. Otherwise you get the fallacy of a single first cause. I actually believe in God but also believe in an infinite universe that has no beginning.

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