#2 Wendy Freedman - The Crisis in Cosmology, Standard Candles, Future of Cosmology

In this week's episode, David is joined by Wendy Freedman. Prof Freedman is a legendary cosmologist, who has played a central role in understanding the expansion rate of our Universe. She is a Professor of Cosmology at University of Chicago, has been elected to the National Academy of Sciences, a legacy fellow of the American Astronomical Society and winner of the Gruber Prize in Cosmology. Her recent work has focussed on precise measurements of the expansion rate of the Universe and has been a the heart of the so-called "Crisis in Cosmology" that we get into in today's episode.
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Пікірлер: 47

  • @joshuagharis9017
    @joshuagharis90174 ай бұрын

    Thank you Wendy and David. Fantastic.

  • @rienkhoek4169
    @rienkhoek416911 ай бұрын

    Wendy is a great guest. Very natural conversation.

  • @merthanfor
    @merthanfor4 ай бұрын

    From the podcast series this is the one I have listened few times now. She is so charismatic. Well done to both of you!

  • @Infected.
    @Infected. Жыл бұрын

    Must be frustrating KZreads algorithm not getting the views just because its a new channel. Great conversation!

  • @viacheslavkiselev3125
    @viacheslavkiselev31253 ай бұрын

    incredible woman! I liked her phrase: "A theory can be beautiful, and elegant, and also wrong'. So often I see at my job as a data scientist people concocting a theory based on questionable data, making huge logical leaps and then just using their talent as convincing and confident speakers to get others on board. And I always hate to kill the vibe by pointing those out. People don't want to hear it, it is a better to live in an illusion to them. Also funny that all future contradistinctions to their theory that pop up are explained out by modifications to the theory.

  • @NatrajChaubey
    @NatrajChaubey Жыл бұрын

    KZread should start recommending this podcast to more of us astronomy nerds if it knows what's good for it.

  • @joshuagharis9017
    @joshuagharis90174 ай бұрын

    Communication of cosmology is tough, but you sir, our friend David Kipping, make it appear effortless. Possible video topic: dark matter history? Is it real, or something else?

  • @TeethToothman
    @TeethToothman Жыл бұрын

    "There is an answer to the question. The question is, when will we get that answer?" Quote of the year.

  • @UniversoTostado
    @UniversoTostado Жыл бұрын

    This is the beginning of a legendary podcast channel (in sciencie) im gonna share this!

  • @CoolWorldsPodcast

    @CoolWorldsPodcast

    Жыл бұрын

    Thanks!

  • @0The0Web0
    @0The0Web0Ай бұрын

    Wow great guest, and great interview too. Well done 👌

  • @alnewby
    @alnewby10 ай бұрын

    Wow, Wow, Wow. What a powerful way to kick off the new "Cool Worlds Podcast" series. The guest was wonderful in communicating complex and groundbreaking science to an informed lay audience. I have watched (and liked) all of the videos from your primary channel and now in reverse order, the podcasts (still digesting the lecture channel). Dr. Kipping, you absolutely must have Dr. Freedman back for a Part 2, 3, and more. Thank you--Al Newby

  • @joshuagharis9017

    @joshuagharis9017

    4 ай бұрын

    Agreed, Dr Kipping is a gem for humanity 👌 ❤️ 🙌 👏

  • @Jobby1975
    @Jobby1975 Жыл бұрын

    Excellent new format. Congratualtions. May it flourish. 🌠

  • @verafleck
    @verafleck Жыл бұрын

    Thank you, more of these, please!

  • @rolandsummers9179
    @rolandsummers917911 ай бұрын

    Great interview man. Helps the thoughts drift off into the in between space and finally sleep. Hope there’s many more

  • @geemanbmw
    @geemanbmw Жыл бұрын

    Professor Kipping looks like he's been eating O type stars💪🏽

  • @Paul-dorsetuk
    @Paul-dorsetuk Жыл бұрын

    Yes learned a lot thanks to both!

  • @dmunro9076
    @dmunro9076 Жыл бұрын

    excellent discussion!

  • @Sol19891
    @Sol1989111 ай бұрын

    Enjoyed this talk! Keep them coming. Do episodes with the engineers of telescopes like Kepler, Hubble, Tess, Gaia etc.

  • @oaklyfoundation
    @oaklyfoundation Жыл бұрын

    I love tjat you use the visual element Will Watch this for sure

  • @domenicm1555
    @domenicm1555 Жыл бұрын

    These podcasts are amazing! I have always been so inspired by your videos and if I had a different beginning of life I would wish to be a part of exploring the universe

  • @classic_sci_fi
    @classic_sci_fi8 ай бұрын

    When Fudge Factors Collide! 😎

  • @RichardKCollins
    @RichardKCollins Жыл бұрын

    Very helpful, very informative, very positive view of the future. On your end note. I work every day with "all human knowledge", "8 billion humans", "2 billion children learning for the first time between 4 and 24 years old", "5 billion internet users". When I check a topic like "Hubble tension" it has 64,100 entry points. If you trace out who is working on that, what is known, what models instruments data algorithms applications, you will find that for most ideas that surface that you can bring to mind, there are often 10,000 individuals and groups working on it. And the dynamics are closely the same for all groups. That old saw about "if ___ had not been born" is not true, but orders of magnitude larger. It is not just a few alternate Einsteins, but thousands of even millions, depending on the topic. I bet that this year we could see proof the Universe is many orders of magnitude larger than our little "big bang region". I think I will win that bet. But there were already tens of thousands saying that already in different ways. Rather than only finding and rewarding and promoting "stars" and "geniuses", we as a species need to value all humans and make sure we have a solid foundation. Break up the LIGOs and have better, smaller sensors in all countries, and orbits or all bodies in the heliosphere. Break up the CERNs and have smaller desktop and continuously operating reference experiments to give open lossless shared data for all humans, not just a few who could afford to go to the right schools. Most of the knowledge now is not so much hoarded, but it is hidden by laziness and lack of effort to share. "We got ours, and to heck with everyone else". Trace out a few thousand topic groups on the Internet, see who has all the resources and why. Check the countries where billions of humans are living and have the identical brain cells and often more creative, but they don't happen to have lobbyists and powerful constituencies. I like your sense that these technical things need local human meaning. July 2023 is the 25th anniversary of the Internet Foundation. And I work every day. I am more than a little disgusted that so much money gets spent to create hoopla and "ooh aah" and not enough to feed the hungry, manage cities well, run the planet well. Too many groups gain monopoly control of subjects, and raise the barriers to keep everyone else out. But the global internet and global knowledge accessible to everyone will raise the total potential for all many orders of magnitude. If electricity, radio, computers raised global standards of living for everyone, then human caring complete auditable open verifiable "true AI" algorithms for storing and sharing knowledge can give us a century of growth and fairness never seen before. Your efforts to find and share are a good indication of a better future for all. But think carefully about who can see what you are doing. And think about the effort you invest. There are about 5 billion humans with some access to the Internet. But when people like your speaker post their "papers" she puts it out in PDF or literally on paper. The people who can read that English language are not the majority. The people who can look up those references, find those tools, check the meaning of the terms, find the raw data, find the tools -- that is nearly impossible,. BUT, with an AI assistant capable of all human subjects, all human knowledge, USING the knowledge from an "astrophysics" paper does NOT have to be that hard. If the author and publishers and their stakeholders and investors are responsible and post the equations in global open symbolic mathematics form, post the algorithms in global open symbolic algorithm form, post the raw lossless data in global open formats, and make sure every person using the Internet (all humans) can actually use those things. If that means that a researcher who has to use a supercomputer or exascale facility to do their work, to visualize has to make sure ALL their material and data and visualizations are open to all - that is the prices human society should pay to let everyone have the same chance. When I was 8 I found a book on Chinese and taught myself, but no who spoke or used that language was near enough for me to work with. When I was 11 years old, I wanted to study spectroscopy, but there were no libraries near that even had a book on the subject. When I was 16, I was studying random neural networks and there was no one who was doing that kind of thing who would talk to a young person. But today, a young person of those ages can get on the Internet, find a certified AI with that subject expertise and talk to them in most any human language and begin to expand and learned. When I was 19 I took graduate courses in artificial intelligence. I was NOT unusual at all. The people around me were smarter than me. And in their areas of interest and passion, likely better than anyone in the world. Richard Collins, The Internet Foundation

  • @Baldev

    @Baldev

    4 ай бұрын

    I read the entirety of this post. Intriguing. Well said. You represent the better ideal that parts of the human species have gained the agency and comfort to ascend to. However, there are "infernal" forces active dedicated to fostering a world which will, in effect, represent an antithesis to your utopia of global uplift and the basic rights and liberties of every member of humanity

  • @madeleinebirchfield7658
    @madeleinebirchfield7658 Жыл бұрын

    The crisis in cosmology is much greater than the Hubble tension. There is also the s8 tension, impossibly early galaxies discovered at JWST which contradict the concordance model, the dipoles in the CMB and various astronomical sources which contradict isotropy in the cosmological principle, the KBC void which contradicts homogeneity in the cosmological principle, and issues with wide binaries at the non-relativistic scale, the results of which support MOND over Newtonian gravity (no dark matter involved here, it's a direct test of MOND vs Newtonian gravity). Then there are hints that the universe might not actually be expanding, as indicated by model-independent tests such as the Tolman surface brightness test (Lerner et al. 2018) and the distance duality test (Pengfeng Li, 2023).

  • @CPHSDC

    @CPHSDC

    9 ай бұрын

    What if the universe is rotatating, revolving around a center as it expands? We would see the same galaxies at different times in their lives. As we focused backward in time, the same objects would be found in different parts of the sky. That would mean the universe is less massive than we suppose. Your Welcome.

  • @stevedrake6529
    @stevedrake652910 ай бұрын

    My man’s got a Hendrix T-shirt on… that’s all I need to know that he really is COOL 😎

  • @gustavoalvarado3231
    @gustavoalvarado3231 Жыл бұрын

    Awesome

  • @eternisedDragon7
    @eternisedDragon7 Жыл бұрын

    In a sense, the "gold rush" period in cosmology is at the same time over but also (for what can be figured out using what ended the major part of it) right at the beginning.

  • @CPHSDC

    @CPHSDC

    9 ай бұрын

    What if the universe is rotatating, revolving around a center as it expands? We would see the same galaxies at different times in their lives. As we focused backward in time, the same objects would be found in different parts of the sky. That would mean the universe is less massive than we suppose. Your Welcome.

  • @omshrivastava5560
    @omshrivastava5560 Жыл бұрын

    You can promote the podcast by making a short on main channel and in community section 😅

  • @CoolWorldsPodcast

    @CoolWorldsPodcast

    Жыл бұрын

    We did that originally but the views were 10x lower than a typical video. This hurts algorithm stuff in the long run so to me it risked sabotaging the main channel

  • @PhiltheMoko
    @PhiltheMoko2 ай бұрын

    Comment for the algorithm

  • @timkbirchico8542
    @timkbirchico854210 ай бұрын

    94 billion

  • @jaz4742
    @jaz47429 ай бұрын

    "Tendency to want things done now. To figure things out now. I hope i never get stuck attached to something that isnt real" See ALL STRING THEORISTS.

  • @tonyb8660

    @tonyb8660

    5 ай бұрын

  • @mindofmyown8597
    @mindofmyown859711 ай бұрын

    I listeneded to your last guest apperance on event horizon, and was suprised you didnt plug your new podcast.. get grifting

  • @Futo653
    @Futo653 Жыл бұрын

    A year... one Complete orbit of the earth around the Sun. Kind of a silly unit of measurement if you think about it. 10 billion 20 billion. I think in the end. They're gonna need a unit higher than a trillion. And black holes Don't let light escape. But what is light but.... fire. Maybe the Force of the black hole puts out the fire. Wouldn't it be interesting if one day They discovered that Black Holes are How suns are made

  • @angusmackaskill3035
    @angusmackaskill3035 Жыл бұрын

    Maybe talking sense and not just spewing buzz words and phrases might generate more interest. But hey, what do I know

  • @hahtos

    @hahtos

    9 ай бұрын

    Yeah, tell us what you do know...