The frame rate of the universe (2009)
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The frame rate of the universe (2009)
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Re: The frame rate of the universe (2009)
#2My physics almost stopped at Newton but I liked the article because it resonates with some thoughts I had about Zeno's arrow paradox - https://en.wikipedia.org/wiki/Zeno%27s_paradoxes#Arrow_parad...
What if space is discrete and time is also discrete? Then there is no paradox. It disappears. I find the possibility that the Universe computes in `ticks` and space is discrete to be very soothing and I'm sure it has nothing to do with me liking computers :)
Re: The frame rate of the universe (2009)
#3My physics almost stopped at Newton but I liked the article because it resonates with some thoughts I had about Zeno's arrow paradox - https://en.wikipedia.org/wiki/Zeno%27s_paradoxes#Arrow_parad... What if space is discrete and time is also discrete? Then there is no paradox. It disappears. I find the possibility that the Universe computes in `ticks` and space is discrete to be very soothing and I'm sure it has noth…
Some years ago, when learning about quantum mechanics, and how you could find a particle inside a forbidden region, I connected that with physics engines in games (and how computing them not fast enough can cause things to intersect in odd ways), and I had this idea:
What if time flows in discrete steps, but the `ticks` aren't uniformly separated? For example, they could be distributed probabilistically as a Poisson distribution. In that case, a particle hitting a potential barrier could pass it briefly, until the tick happens and it moves out of it.
There might be a way to compute an optimal probability distribution for that case, but I'm not sure if it could be consistent with Schrödinger equation.
But I never had time nor knowledge to search whether someone had already thought of it, or if it could be even remotely plausible.
Re: The frame rate of the universe (2009)
#4My physics almost stopped at Newton but I liked the article because it resonates with some thoughts I had about Zeno's arrow paradox - https://en.wikipedia.org/wiki/Zeno%27s_paradoxes#Arrow_parad... What if space is discrete and time is also discrete? Then there is no paradox. It disappears. I find the possibility that the Universe computes in `ticks` and space is discrete to be very soothing and I'm sure it has noth…
Some years ago, when learning about quantum mechanics, and how you could find a particle inside a forbidden region, I connected that with physics engines in games (and how computing them not fast enough can cause things to intersect in odd ways), and I had this idea: What if time flows in discrete steps, but the `ticks` aren't uniformly separated? For example, they could be distributed probabilistically as a Poisson…
> Some years ago, when learning about quantum mechanics, and how you could find a particle inside a forbidden region
Where can I learn more about this? It sounds interesting.
Re: The frame rate of the universe (2009)
#5Earlier quoted context omitted.
Some years ago, when learning about quantum mechanics, and how you could find a particle inside a forbidden region, I connected that with physics engines in games (and how computing them not fast enough can cause things to intersect in odd ways), and I had this idea: What if time flows in discrete steps, but the `ticks` aren't uniformly separated? For example, they could be distributed probabilistically as a Poisson…
> Some years ago, when learning about quantum mechanics, and how you could find a particle inside a forbidden region Where can I learn more about this? It sounds interesting.
The classical simplest "problem" is
https://en.wikipedia.org/wiki/Rectangular_potential_barrier
And the actual quantum phenomenon is https://en.wikipedia.org/wiki/Quantum_tunnelling
Re: The frame rate of the universe (2009)
#6My physics almost stopped at Newton but I liked the article because it resonates with some thoughts I had about Zeno's arrow paradox - https://en.wikipedia.org/wiki/Zeno%27s_paradoxes#Arrow_parad... What if space is discrete and time is also discrete? Then there is no paradox. It disappears. I find the possibility that the Universe computes in `ticks` and space is discrete to be very soothing and I'm sure it has noth…
Some years ago, when learning about quantum mechanics, and how you could find a particle inside a forbidden region, I connected that with physics engines in games (and how computing them not fast enough can cause things to intersect in odd ways), and I had this idea: What if time flows in discrete steps, but the `ticks` aren't uniformly separated? For example, they could be distributed probabilistically as a Poisson…
I now have even more respect towards speedrunners and glitch hunters than I already had. They are like scientists of fictional universes!
Re: The frame rate of the universe (2009)
#7My physics almost stopped at Newton but I liked the article because it resonates with some thoughts I had about Zeno's arrow paradox - https://en.wikipedia.org/wiki/Zeno%27s_paradoxes#Arrow_parad... What if space is discrete and time is also discrete? Then there is no paradox. It disappears. I find the possibility that the Universe computes in `ticks` and space is discrete to be very soothing and I'm sure it has noth…
Some years ago, when learning about quantum mechanics, and how you could find a particle inside a forbidden region, I connected that with physics engines in games (and how computing them not fast enough can cause things to intersect in odd ways), and I had this idea: What if time flows in discrete steps, but the `ticks` aren't uniformly separated? For example, they could be distributed probabilistically as a Poisson…
> ...whether someone had already thought of it
Stephen Wolfram certainly did in A New Kind of Science:
https://www.wolframscience.com/nks/chap-9--fundamental-physi...
And Louis Nielsen:
And probably many others.
Re: The frame rate of the universe (2009)
#8> If we want to fit the universe into a box, its sides would have to be twice that size. That is 5.4 × 10^61 Planck lengths.
206 bits is enough to address the precise position of anything in the universe.
Re: The frame rate of the universe (2009)
#9> If we want to fit the universe into a box, its sides would have to be twice that size. That is 5.4 × 10^61 Planck lengths. 206 bits is enough to address the precise position of anything in the universe.
Wouldn't it be that times three, one for each dimension?
Re: The frame rate of the universe (2009)
#10To me a neat consequence of quantized motion and dimensional extent is that there's a hard limit on angular orientation and hence accuracy. That is to say, it's possible to be far enough away and in a proper position such that a particle in another certain position could not be propelled directly at you, only at positions around you since you could be standing in the middle of the maximum angular resolution of the propelling force.