Information Is Physics
cacm.acm.org
Information Is Physics
1–10 of 78 posts
Re: Information Is Physics
#2For anyone interested in this, the Landauer limit now has experimental evidence.
Also, it is now believed that the Margolus-Levitin theorem puts a lower bound on energy even on reversible computations.
Re: Information Is Physics
#3"settled into something that many people agree is a problem."
love this phrase.
Re: Information Is Physics
#4For anyone interested in this, the Landauer limit now has experimental evidence. Also, it is now believed that the Margolus-Levitin theorem puts a lower bound on energy even on reversible computations.
It's hard to imagine what it would even mean to get experimental evidence against the Landauer limit. You'd have to throw out basic thermodynamics. (It would about the same as getting experimental evidence for a perpetual motion machine; possible, but basically requiring a revolution in fundamental physics.) The disputes over the Landauer limit were conceptual and definitional disputes, not disagreements over well-formed predictions.
Re: Information Is Physics
#5Theories are now emerging that Universe is running one large bayesian learning algorithm (bayesian inference itself is proven to be an optimal knowledge creation method)
See e.g. Bayesian Brain and Universal Darwinism
Re: Information Is Physics
#6Can someone ELI5 the general concept?
Re: Information Is Physics
#7Theories are now emerging that Universe is running one large bayesian learning algorithm (bayesian inference itself is proven to be an optimal knowledge creation method) See e.g. Bayesian Brain and Universal Darwinism
See also: brain as hydraulics, brain as a system of cogs, brain as a computer.[1]
[1] https://aeon.co/essays/your-brain-does-not-process-informati...
Re: Information Is Physics
#8Theories are now emerging that Universe is running one large bayesian learning algorithm (bayesian inference itself is proven to be an optimal knowledge creation method) See e.g. Bayesian Brain and Universal Darwinism
See also: brain as hydraulics, brain as a system of cogs, brain as a computer.[1] [1] https://aeon.co/essays/your-brain-does-not-process-informati...
Thank you for this. I spend a non-trivial amount of time telling people working in AI and machine learning (which I also do) that the brain isn't some parameter optimization machine and that analogies from whatever technology or math people are excited about aren't very useful. I wish some neuroscience education and articles like these were some part of the ML canon.
Re: Information Is Physics
#9Earlier quoted context omitted.
See also: brain as hydraulics, brain as a system of cogs, brain as a computer.[1] [1] https://aeon.co/essays/your-brain-does-not-process-informati...
Thank you for this. I spend a non-trivial amount of time telling people working in AI and machine learning (which I also do) that the brain isn't some parameter optimization machine and that analogies from whatever technology or math people are excited about aren't very useful. I wish some neuroscience education and articles like these were some part of the ML canon.
I couldn't disagree with you more. The article referenced by GP mistakes the form for the function. Just because the computer uses different technology than human tissue, doesn't mean it isn't emulating the same ultimate processes that are happening in our bodies.
And even if we don't have the correct algorithms in sight today, there is every reason to believe that whatever processes are occurring in our brains and bodies, can indeed be simulated and replicated virtually.
The only way to argue against this idea is to claim that there is some special magical non-material aspect to our existence... which no article or neuroscience education has yet demonstrated.
Re: Information Is Physics
#10It was only a matter of time