[chetan51]

If we keep writing down common sense datums until 2100, we can make computers as smart as people.

We learn more about brains and making smart computers, but we seem to have run out of major architectural innovations -- better ones won't make a huge difference. The big stumbling block seems to be how much "common sense" a system knows, like that things tend to fall down when you bump them. One group has been writing these down for fifteen years with moderate success; a century more effort may be plenty.

This seems like a really inefficient way to go about it.