If that doesn’t seem believable, why be worried about machine learning algorithms running on digital computers instead of matchbox arrays?
If that doesn’t seem believable, why be worried about machine learning algorithms running on digital computers instead of matchbox arrays?
No, because the design uses a different matchbox for every possible state of the game. If you taught it to play chess, a billion matchboxes wouldn't be enough to get four moves in.[1] Yet digital computers can play chess.
On the other hand, if you switched to a completely different design that uses matchboxes to simulate an artificial neural network… a design that would require opening each matchbox on each time step…
…and pumped the number of boxes up to 100 billion (number of neurons in the human brain) or higher…
…and ran the simulation for, perhaps, trillions of time steps (need to simulate evolution, not just the operation of the brain during a single lifetime)…
…and changed the goal from playing a game to something that would require more general logical reasoning...
…then who knows, it might well become intelligent (though it's hard to be sure). But at that point I'd say the lack of believability has more to do with the difficulty of performing 100,000,000,000,000,000,000,000 matchbox operations, than the likelihood of achieving useful results if you did.
[1] http://www.bernmedical.com/blog/how-many-possible-move-combi...
I mean, yes, I realize plenty of people seem to think that you can in fact do that, and it is worth pointing out to these people that they are wrong, but that is not an argument against the more general thesis that there is good reason to be be worried about AGI.
I'm reminded of this classic xkcd: https://xkcd.com/505
It feels completely insane that our universe could be simulated by shuffling rocks around. And yet we know, incontrovertibly, that the rocks can do anything a modern CPU can. You just need a lot of rocks -- where "a lot" is not 1 billion, not even close. Scale is a helluva drug.
If what the brain is doing is computational, then it's not doing anything more powerful than a Turing Machine could do. There would be some Turing Machine design that could do the same processing.
[1] https://en.wikipedia.org/wiki/Chinese_room#Chinese_room_thou...