>Try to beat even amateur players in 19x19 go...the domains you mention have very simple rules which allow symbol shifting systems to succeed. Computers alread

>Try to beat even amateur players in 19x19 go...the domains you mention have very simple rules which allow symbol shifting systems to succeed. Computers already play go at an amateur level now - 2-5 dan. And are gradually improving with better algorithms and better CPUs. But go is a game with extremely simple rules - simpler than chess - and an inherently simple possibility space - simpler than Jeopardy - so if somebody were to build a program tomorrow that could beat all the world's best go players, wouldn't you then just dismiss this as not demonstrating true intelligence because we'd then know that go has "very simple rules which allow symbol shifting systems to succeed"? Winning at Jeopardy is far more impressive with regard to demonstrating "intelligence" than winning at go would be. Jeopardy questions are limited by the english language and human creativity; the relevant info that could be brought to bear in answering these questions is the entirety of knowledge the humans playing the game might have, including knowledge of puns and wordplay. Whereas the go search space, while quite large, is something any programmer could model - just mappings of one 19x19 three-state grid to another. Go is theoretically solvable in a way that Jeopardy is not. >The human brain has over a septillion atoms If the individual atoms were all individually crucial to producing thought that would be relevant. But it seems rather unlikely that they do. We need to replicate the relevant properties of neurons, not their exact makeup. Suppose you need to replace a broken hipbone or jawbone. There's a whoooole lot of atoms in a piece of bone, but you can replace it with any compound that has suitable physical properties. What matters when replacing bone is characteristics such as strength, flexibility, and wear resistance. Whatever you replace the bone with will also have a lot of atoms, but knowing the exact number of atoms and where they were wasn't necessary to replacing the functionality.