in thread "A pinpoint brain with less than a million neurons, somehow capable of mammalian-level problem-solving.": Stephen Wolfram's result on the simplest Universal Turing Machine may be relevant to thinking about what's going on with spiders. Wolfram conjectured (later proven by Alex Smith in 2007) that a simple cellular automaton with only 2 states and 3 symbols was... 2y ago (collapse hidden) 44 Stephen Wolfram's re (view hidden) 44