Ivan Reese
Mariano Guerra
Ivan Reese
Mariano Guerra
Mariano Guerra
Mariano Guerra
Chris Maughan
04/09/2020, 9:03 PMIvan Reese
tbabb
04/09/2020, 11:38 PMDoug Moen
04/09/2020, 11:52 PMtbabb
04/09/2020, 11:56 PMphysical systems which compute:
- actual computers (almost always implementations of a Von Neumann architecture)
- certain biological systems
- brains
- intracellular chemical networks (linked video)
- DNA
- Babbage's Analytical Engine
abstractions of physical machines:
- Von Neumann architecture
- hardware description languages
abstract / mathematical systems which compute:
- rule 110 (& other CA rules, like Conway's)
- recurrent neural networks
- any programming language
abstractions of computation:
- Turing machine
- lambda calculus
- universal function
Prathyush
04/10/2020, 3:32 AMPrathyush
04/10/2020, 3:32 AM"There are two realities to this thing. Just like light is a wave and a particle at the same time. Information and construction, structure and function, are irreducible properties of the same physical object that exist in different layers with different protocols."
Ivan Reese
Ivan Reese
the mainstream consensus of agreeing that Church-Turing Thesis formalizes what computation is. Though Alan Turing and Church's hypothesis is said to have given a bounded form to the mechanism of computation, there are ideas like that of Robert Rosen proposing that Church Turing Thesis is wrong and can't possibly stand as a model for all computation physically realizable. There is something called epistemic cut and other ideas which I haven't been able to unbundle yet.This is fascinating. Intuitively, it does feel like Church-Turing couldn't possibly have nailed the lower bound on what constitutes the fundamentals of physically realizable computation. That just feels phenomenally unlikely considering that those were the first models we formalized. There's gotta be some wiggle room left under there.
Peter Abrahamsen
04/11/2020, 2:09 AMDoug Moen
04/11/2020, 2:16 AMDoug Moen
04/11/2020, 2:36 AMDoug Moen
04/11/2020, 2:49 AMPrathyush
04/11/2020, 2:52 AMDoug Moen
04/11/2020, 1:05 PMDoug Moen
04/11/2020, 1:23 PMshalabh
04/11/2020, 7:43 PMPrathyush
04/12/2020, 2:36 AMEddy Parkinson
04/12/2020, 6:46 AM