There's a ton. Jeff and his team are on a very particular course and have been since 2004. There are some other things happening in the space and it has to do with collection of data and sensory inputs similar to 5 year old child. Send me an email at kasian.franks@gmail.com to continue as I don't check back on these comments too often.

Stephen Pinker gave a somewhat unbiased analysis of CTM (Computational Theory of the Mind) a while ago. Very relevant.