Time Is Broken, According To This New Theory

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Published 2023-07-03
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The Big Bang Theory has become the most accepted theory for the origin of the universe for decades. And it still is. But there are a handful of theories - mostly mathematical models - that offer a steady-state explanation for the universe. One of them is called Causal Set Theory. It’s a little different, but interesting. And worth talking about.

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LINKS LINKS LINKS
www.livescience.com/33816-quantum-mechanics-explan…
www.space.com/17661-theory-general-relativity.html
www.secretsofuniverse.in/quantum-gravity/
astronomy.com/magazine/news/2018/09/black-holes-te…
www.space.com/17594-string-theory.html
www.quantamagazine.org/string-theory-meets-loop-qu…
www.space.com/loop-quantum-gravity-space-time-quan…
www.einstein-online.info/en/spotlight/causal_sets/
perimeterinstitute.ca/people/rafael-sorkin
link.springer.com/article/10.1007/s41114-019-0023-…
www.rri.res.in/people/faculty/sumati-surya
aschoonerofscience.com/how-things-work/what-is-a-l…
www.livescience.com/universe-had-no-beginning-time

TIMESTAMPS
0:00 - Intro
3:59 - Different Theories
4:40 - Causal Set Theory
8:17 - Why Causal Set Theory is Popular With Physicists
11:15 - Sponsor - Hello Fr

All Comments (21)
  • @denitrifi.gaming
    How did the universe begin, you ask? Well, when two universes love each other very much....
  • @TheFPSChannel
    What about the giant tortoise? Huh?‽ Explain THAT brain boy!
  • @fractalelf7760
    I am 57, as a child I still recall when 1) continental shift was not widely accepted and 2) before any discussion of Big Bang and as you said infinite universe. They also believed the brain didn’t change much after puberty, neuroplasticity as it was later called didn’t exist.
  • @TheJadeFist
    Planck length's of time or space, don't actually mean that nothing is smaller. It just means we can't measure or use anything in a meaningful way smaller than that limit. It's so small that any event below that of any scale is effectively considered the same, or that it is completely unobservable/ non-interactive. There absolutely no reason to assume that it's impossible for things smaller than those scales to be possible, and thus a infinitesimally smaller universe the further back in time, doesn't require a discrete beginning event as we would understand it. It's like that curve on a graph that gets closer to zero but never quite touches it.
  • @tcortez
    As a nuclear engineer and physicist, I actually love the disclaimer and believe that we should all have them for multiple topics throughout life. Thank you for the engaging posts.
  • Lemaitre was also a professor of physics at the Catholic University of Louvain. He was a priest and a legit scientist. Later in life he he became a computer programmer. He also got a Ph.D at MIT and fought in WW1
  • @tw8464
    Joe you do a super job. You're the most straightforward communicator I've seen on YouTube. I can watch your videos and not be messed around with hype or nonsense. You also have a great sense of humor. To be straightforward and humorous and entertaining that is a winning combination. Keep up the great work!
  • @deb4908
    I love that you can keep me engaged for over 13 minutes with a topic that is completely beyond my comprehension 😂.
  • @johnnygee4206
    A couple decades ago, I was having a random conversation about the beginning of the universe with some coworkers while working as a dishwasher at an Italian restaurant. I theorized the "Big Bang" was a local event, and our universe was one of many that naturally pop up throughout infinite space and time. I used a sponge covered in bubbles as a representation of how universes (bubbles) "pop" over time, or expand and pop up anew with a good squish. My fellow dishwashers nodded, whilst Mike the manager told us to, "Stop !%^%$#% around and get back to work!!". Couldn't stand that guy...
  • @WhitePapi83
    The fact you are honest and humble enough to acknowledge your lack of understanding in topics makes it more engaging for other people who are also learning. 🤙🤙
  • @raysubject
    Talking about time passing, I just remembered i started to watch your channel when you had literally few hundreds of followers .. incredible how far you went, 1.69M !!! You are clear proof that hard work pays off !! For those years you created incredible amount of great content !
  • @AlexanderSpear
    It seems to me that the idea of a steady state universe is similar to the idea that the concept of "nothing" is impossible because once you conceptualize "nothing," it becomes "something."
  • @JoeNietzsche
    Joe is humble. Humility is a force multiplier when considering complex subject matter. Be like Joe.
  • @ericfleet9602
    One clarification. The Big Bang does not require that the universe was an "infinitesimally small point" at some point in its past. In fact the universe may have started off as infinite and expanded everywhere into the larger infinity that we see today.
  • @uandubh5087
    Honestly the idea of an infinite steady state universe with no beginning or end makes much more sense than a big bang for whatever reason starting everything out of some kind of weird tiny "no space no time" state.
  • @ShannonDavisSings
    I was driving in my car recently. I have a terrible sense of direction. Been picked on about it all my life. I was headed somewhere, with the aid of my phone's GPS, trying very to remember how I'd get there in the future so next time I went there I would not need my phone as a guide. I was looking at all the physical things around me. Trying to remember the church that was on that corner and that weird looking sign that was on that other corner and that tree standing over there. All those things when you are trying to remember how you get to where you are going. But, a song came on the radio and I started singing. And, I started remembering all the reasons I absolutely love the song. And, by the time I got to my destination, I realized, I'd forgotten, even though I was looking and (at least on some level) really trying to concentrate on everything around me, much of what I'd seen... all manner of little steps I'd taken to get to where I was going. I tried to go back exactly the way I'd come without the aid of my phone and found myself lost fairly quickly. It was as though the song on my drive to the destination had transported me into a different dimension where Time... memory and emotion and reason... had been, to some extent, suspended. I was "transported" elsewhere in my mind. I'd obviously been aware enough of what I was doing to pay attention to danger coming from cars or animals running out into the street or the directions my phone was giving me, but not enough to really pay attention to where I was in the Now. I couldn't shake the thought that this is relevant when it comes to my very perception of Time itself. I have been wondering, as a layman, if this mental ability to be, basically, in two headspaces at once, is not our biggest problem when it comes to understanding Time, its relationship with physical reality and causation? I recognize that I am terrible at spatial cognition. At concentrating and learning from the tasks I am engaging in, as I engage in them, when my mind wanders. The wandering itself often yields leaps in logic I would not have had, so it does have its merits. But yes, that is a far easier explanation. Still, could there be a correlation between when that happens and understanding Time itself and its relation to reality.
  • @bazoo513
    While there were instances when some mathematical oddity led to discovery of physical phenomena (like negative energy solutions to Dirac equation that turned out to describe positron, the anti-matter counterpart of electron), it would seem that Nature has no obligation to follow all nice, consistent mathematical constructs with their physical realization. Just because we can describe something it doesn't have to actually exist.
  • @harlequinne.
    Love your videos. I also want to say, just because you aren't an astrophysicist shouldn't downplay how important videos like these are. I did well in school but I didn't enjoy learning. Now as an adult when I get to pick topics I'm interested in I LOVE learning and since I consider myself pretty smart, but with no higher education more simply explained videos like these are a godsend to help me understand better and sate my curiosity.
  • @morenofranco9235
    Time itself, is a steady-state. It is Mind that moves. When Mind is moving slowly, Time flashes by in "an instant". When Mind moves fast, Time feels like "an Eternity". Time is the Universes way of preventing Everything from happening at once.
  • @jamesdevine620
    for years i have watched your videos, never missed one, this is the best of all of them, you were throwing down truths that are often overlooked in science, this is how we really learn and advance, good for you!