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Information thermodynamics is a fertile research field that gave us a lot of insight into physics, and also chemistry and biology. Beyond solving Maxwell's daem

Information thermodynamics is a fertile research field that gave us a lot of insight into physics, and also chemistry and biology. Beyond solving Maxwell's daemon (one of the early clues that information is physical and intricately linked to thermodynamics) experimentally, we can also build tiny machines fueled by information, so called information engines. I'm not sure how this relates to quantum gravity, I think that one is going to be harder to figure out.

mhh__ 4y ago
Unless it's one more systemd feature, it's Maxwell's "demon"
- tuckerman 4y ago
  I didn’t look terribly long so I can’t find a reference, but I believe when Kelvin coined the term he used the daemon spelling
  - bardworx 4y ago
    Yes, the process was named after Maxwell's daemon: https://en.wikipedia.org/wiki/Daemon_(computing) https://en.wikipedia.org/wiki/Daemon_(computing)
- peterburkimsher 4y ago
  What happens if we ask Laplace's demon (assumption of reversibility) to battle Maxwell's demon (entropy decrease) - will it end in an infinite loop? At some level, even systemd is built on a superloop, or "main" method, which depends on a power supply. So the computers are depending on physics again, to persuade us that: • electron + positron = photon • photon really is a fundamental particle in the Standard Model • Elementary charges are measured as +1, -1 electron... ok I'm confused now. • One Electron Universe?
  - treeman79 4y ago
    Also time causes gravity.
madaxe_again 4y ago
I think by considering gravity, space and time somewhat differently. We use terms like “speed of light” when what we actually mean is “speed of information”. We use terms like “speed” to describe ds/dt, but again, that may be a result of our perception rather than a relevant physical phenomenon. We look at mass, and describe things as having, well, mass - or energy - but what they actually have is information. So, for gravity, quantum gravity, I think it’s more about a shift in perception (what is this “force” thing anyway?) than necessarily new science or techniques at this point. I mean, you could look at it as “more information in a given region of spacetime induces a computational overhead due to network effects, which slows time locally respective to an external observer, resulting in an apparent “gravity” force across the time differential”.

mhh__ 4y ago

Unless it's one more systemd feature, it's Maxwell's "demon"

tuckerman 4y ago
I didn’t look terribly long so I can’t find a reference, but I believe when Kelvin coined the term he used the daemon spelling
- bardworx 4y ago
  Yes, the process was named after Maxwell's daemon: https://en.wikipedia.org/wiki/Daemon_(computing) https://en.wikipedia.org/wiki/Daemon_(computing)
peterburkimsher 4y ago
What happens if we ask Laplace's demon (assumption of reversibility) to battle Maxwell's demon (entropy decrease) - will it end in an infinite loop? At some level, even systemd is built on a superloop, or "main" method, which depends on a power supply. So the computers are depending on physics again, to persuade us that: • electron + positron = photon • photon really is a fundamental particle in the Standard Model • Elementary charges are measured as +1, -1 electron... ok I'm confused now. • One Electron Universe?
- treeman79 4y ago
  Also time causes gravity.

madaxe_again 4y ago

I think by considering gravity, space and time somewhat differently. We use terms like “speed of light” when what we actually mean is “speed of information”. We use terms like “speed” to describe ds/dt, but again, that may be a result of our perception rather than a relevant physical phenomenon. We look at mass, and describe things as having, well, mass - or energy - but what they actually have is information. So, for gravity, quantum gravity, I think it’s more about a shift in perception (what is this “force” thing anyway?) than necessarily new science or techniques at this point. I mean, you could look at it as “more information in a given region of spacetime induces a computational overhead due to network effects, which slows time locally respective to an external observer, resulting in an apparent “gravity” force across the time differential”.