When Is Now?

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Published 2021-02-15
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When is now? Seems like a pretty simple question… just look at your watch. But do you and I share the same “now”? Let’s journey from Einstein’s thought experiments about relativity to cutting edge neuroscience research to try and answer that question.

References: sites.google.com/view/when-is-now-references/home

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All Comments (21)
  • @sachinm1882
    I love that physics just becomes philosophy when it gets deeper
  • @Yetipfote
    next time in an argument I say: "Well I guess you're right in your own reference frame."
  • @delpullen730
    Starting with a Spaceballs reference will always win me over.
  • @sesquame9527
    Fun fact, the "view from nowhen" was believed by our ancestors to be the view that departed spirits had, which is why the ancients would ask the dead for advice and predictions about the future, since the greeks/romans believed them to be outside of time.
  • @kephalopod3054
    "Time is what prevents everything from happening all at once." - Richard Feynman
  • @ReedAdams
    “Now” doesn’t even feel like a word anymore
  • @user-in6mz1sd4t
    "that all moments are equally real and there's nothing special about the present moment except that you're experiencing it right now." I used to think of the world like that as a child, that everything is kept in it's own little place in history and once it happens it stays there, and isnt lost so the only thing that matters is that it existed once. Brings a lot of comfort
  • @sudosu078
    For the first time in my life I was somewhat able to comprehend general relativity!!
  • @Mike-kc5ew
    "No, no, no. Go past this. Pass this part. In fact, never play this again." - Dark Helmet
  • I'm really grateful for videos like this because I used to talk about space time, and the illusions of reality in 7th grade, and I'd lose friends because I scared and confused them. I've found my people, and it feels nice.💙
  • Physicist Carlo Rovelli has a super interesting paper called “Neither Presentism nor Eternalism” that’s worth checking out if you’re interested in this stuff. He explains that while traditional presentism doesn’t make any sense with our modern understanding of physics, the “block universe” of eternalism isn’t the only philosophical alternative. It really comes down to what you truly mean by “present” and the ontological significance you apply to the idea of “reference frames.” Regardless of how you like to conceptualize time, I find his discussion to be very dope indeed 😎
  • @markusnl
    When I saw the title, Spaceballs instantly came to mind... thanks for delivering on that thought!
  • @RC32Smiths01
    That spaceballs reference simply makes this video a 10/10.
  • @worldsboss
    The brain automatically synchronising discrepancies up to 100 metres is absolutely amazing! I had no idea it was doing that!
  • Pretty cool... kudos to all this team... the work in the script and visuals are stunning and awe inspiring.
  • @nelser1160
    Looks like Joe has been talking to Vsause
  • @raizo-ftw
    "The "Now" you're experiencing is yours and yours alone." That felt oddly empowering.
  • @EnyaShello
    “Your brain is not a clock that tracks time” as someone with ADHD I can’t agree more