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First of all, I think you're claiming a little too much about science from. > the fitness landscape being explored by science is "well behaved" and can be trav
by darkmighty 11y ago
First of all, I think you're claiming a little too much about science from.
> the fitness landscape being explored by science is "well behaved" and can be traversed using a simple stepwise or gradient descent function
This is false! Non-obvious I know, but it was experimentally shown and holds for a wide class of high dimensional landscapes. It was well explained here (he talks about several novel ideas/insights actually, worth watching):
https://www.youtube.com/watch?v=7KCWcx-YIRI https://www.youtube.com/watch?v=7KCWcx-YIRI
> There is probably no deterministic "for(;;) { do X }" formula for learning in complex real-world domains
This is true in a rather straightforward manner when limited to mathematics, from the halting problem (and some mild computational assumptions about the universe): if no finite algorithm can solve arbitrary instances of the halting problem, clearly no finite algorithm can solve arbitrary problems (that includes algorithms that try to "self-improve", of course).
I think this bit of scientific realism is indeed very important to those in the field.
> There also seems to be an economic drive to commoditize humans. If learning can be completely systematized, then science can be rendered into an assembly line process...
I tend to think of the opposite; the more we're able to replace humans with machines the more power we get to the whatever we want. We just have to make sure this surplus power is made widely available.
- api 11y agoThat talk looks fascinating... bookmarked it for a later read. Quite a few people in all kinds of areas would benefit from a study of machine learning theory -- I think some of these findings are philosophically profound.
- darkmighty 11y agoThe idea that simple descent (in this case a modified Newtons Method) works is very simple... the curvature of fitness the across at each point across dimensions are mostly uncorrelated; a local minimum occurs when the curvature across all dimensions are positive, which is exponentially unlikely in the dimension. I hadn't heard of such a simple and useful insight in a while... this is exactly what theory is for! Anyway, that talk is very interesting.