The Biggest Questions of Cosmology: Pondering the Imponderables

2018-10-05に共有
PROGRAM DESCRIPTION: Is our universe unique or one of many? What happened before the Big Bang? Why is there something rather than nothing? Physicists and cosmologists are closing in on how the universe operates at its very core. But even with powerful telescopes and particle accelerators pushed to their limits, experimenters struggle to keep up as theoreticians march forward, leaving grand theories untested. Some argue that if these deep questions can’t be answered empirically, they’re not relevant to science. Are they right? Join world-leading cosmologists, philosophers and physicists as they tackle the profound questions of existence.

PARTICIPANTS: David Z. Albert, George F. R. Ellis, Alan Guth, Veronika Hubeny, Andrei Linde, Barry Loewer
MODERATOR: Jim Holt

WATCH THE TRAILER:    • TRAILER - Pondering the Imponderables  
WATCH THE LIVE Q&A W/ DAVID ALBERT:    • WSF CONNECT Q&A with David Albert  

MORE INFO ABOUT THE PROGRAM AND PARTICIPANTS: www.worldsciencefestival.com/programs/big-universe…

This program is part of the Big Ideas Series, made possible with support from the John Templeton Foundation.

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TOPICS:

- The Biggest Questions of Cosmology 00:00

- Participant Introductions 05:33

- Does eternity relate to infinity? 13:45

- Why is wrong to say the universe has a finite past? 24:15

- The two claims about inflation. 36:54

- Is 3D dimensional space the real space? 47:27

- The "measurement" problem 59:33

This program was recorded live on 6/3/17 and has been edited for our YouTube channel. Watch the original livestream here:    • LIVESTREAM - Pondering the Imponderab...  

コメント (21)
  • @The_Tauri
    Gotta say, in what little she spoke, Veronika Hubeny made one hell of a case for not taking too literally the claims of the description of reality in one particular formulation of physical theories vs another. I was completely convinced by her rather uncommon statement that even the classical 3D world is necessarily more "real" than what any other (mathematically equivalent) description might suggest.
  • @warren286
    Too many brilliant minds seem to forget, mathematics is merely a philosophical tool for logic and reasoning in the metaphysical realm and does not directly define the physical realm. All the models of the physical realm in physics are just that, models, a rendition of our current understanding of reality. Just as an artist starts off drawing gibberish to making better and better models of reality to having a good rendition of it. However, these models will always be our perception of reality and not necessarily reality itself.
  • @jakob2746
    It’s heartwarming how none of the participants are interrupting each other... such a relief from basically every other conversation happening in both business and public television.
  • For those of you out there who, like me, are binge watching these physics lectures and presentations - I have to say that this one, in particular, is much more tense and lively a debate than the other WSF panels. I fell asleep a quarter of the way through the first time (not uncommon as I watch before bed) because I was a little turned off by the abstract nature of the conversation but upon a second go-around, am pleasantly intrigued by this powerhouse line-up and their politely tense parsing of words - when so much seems to be on the line - i've grown a little tired of watching Brian Greene chew his own scenery and this is a nice antidote.
  • Fun stuff. Albert is great. Never heard anyone who could state something so well - even beautifully - while speaking in a style where the main word is the hated "uh".
  • The guy 2nd from our right looks like every crazy scientist in every movie I have ever seen.
  • @prmzht
    "Time is not infinite; it will be infinite in the future, which we will never reach" Mind.blown.
  • @Vikash137
    The mathematician guy almost lost his shit when the lady said 1 divided by 0
  • so many phrases and principles in this discussion that flew right over my head. But still eyes glued. Possibly like a toddler watching a cartoon, not picking up on the plot and what will happen next, but just soaking it in.
  • Perfect timing, right when I'm heading to bed. Thanks .
  • @spnhm34
    The discussion led to a place that might as well have been on the other side of an event horizon. The moderator seemed much more intent on lobbing controversial questions in order to push buttons than keeping things on track
  • @keyun12
    They took out the part when the host Jim Holt was called out by an audience member for talking over the only woman on stage. An audience member screamed out "let her talk please!"
  • We don't even understand what gravity is, or how it works. But yet we think we know that space comes from a singularity. It's like seeing a wave coming in to shore, and assuming that it's travelled, and looked the same, for ever.
  • @skipsch
    This seems so nicely fast-paced compared to some other WSF physics panels I've seen. Real real cool.
  • @Les537
    Excellent. I thought it might be a bit of a rehash, but this turned into one of my favorite talks from WSF. Nice work!
  • Alan guth with his back/forth symmetry quote seems to just make sense