Directed Cyclic NOR (or NAND) networks suffice as natural Turing machines. On Sun, Oct 6, 2019 at 2:00 AM Ben Goertzel <b...@goertzel.org> wrote:
> Matt, > > > It probably takes a few hundred bits to describe the laws of physics. > > Hmm, that seems very few, just taking a look at the Standard Model and > General Relativity right now... > > What sort of machine are you assuming is interpreting these bits? If > it's some sort of standard Turing machine with a tape etc., or a > standard modern Intel processor running e.g. standard Linux OS/tools > with no special physics software, then I kinda think it's more than > that... > > ben > > On Sat, Oct 5, 2019 at 5:01 PM Matt Mahoney <mattmahone...@gmail.com> > wrote: > > > > > > > > On Sat, Oct 5, 2019, 8:00 AM John Rose <johnr...@polyplexic.com> wrote: > >> > >> On Friday, October 04, 2019, at 12:42 PM, Matt Mahoney wrote: > >> > >> Evolution is arguably simple, but it required 10^48 DNA copy operations > on 10^37 bits to create human intelligence > >> > >> > >> Simple programs that create apparent complexity are not full > representations of that complexity since they don't contain the physical > energy expenditure component in the expression. That's where the > consciousness of an observer comes in to play (IMO). > > > > > > The complexity of an object is the fewest number of symbols needed to > describe it in some language. It has nothing to do with computation time, > energy, or consciousness. It is only the simplicity of a theory that > determines its power in making predictions in accordance with Occam's > Razor. This holds in all branches of science. > > > > Simpler descriptions are usually slower. For example, the simplest > description of pi is probably the Taylor series expansion of 4 x arctan(1) > = 4 x (1 - 1/3 + 1/5 - 1/7 +...). But that converges very slowly. You need > a million terms to get the first 6 decimal places. There are faster > algorithms, but it is the simplest formula that determines how often pi > turns up in various places. > > > > Likewise, a description of evolution would require a model of chemistry, > which would require 10^90 (quantum) operations to model just the Earth, or > 10^120 operations to model all 10^24 planets in the observable universe and > their sun's, even if Earth is the only one containing life. The latter > model requires 80 fewer bits to encode because it doesn't have to specify > the planet. It allows for models in which the spontaneous formation of self > replicating molecules is exceedingly rare, as it seems to be. > > > > It probably takes a few hundred bits to describe the laws of physics. > But an even simpler model, requiring vastly more computation, is that all > possible universes with all possible laws of physics exist, and we > necessary observe one where it is possible for life to evolve. > > > > Artificial General Intelligence List / AGI / see discussions + > participants + delivery options Permalink > > -- > Ben Goertzel, PhD > http://goertzel.org > > “The only people for me are the mad ones, the ones who are mad to > live, mad to talk, mad to be saved, desirous of everything at the same > time, the ones who never yawn or say a commonplace thing, but burn, > burn, burn like fabulous yellow roman candles exploding like spiders > across the stars.” -- Jack Kerouac ------------------------------------------ Artificial General Intelligence List: AGI Permalink: https://agi.topicbox.com/groups/agi/T8eabd59f2f06cc50-M1adf612108674d2afbb85edc Delivery options: https://agi.topicbox.com/groups/agi/subscription
