Interesting subject and mind-game. I do think that if we can stick around for long enough (with how much damage we've done to our ecosystem) that we could be able to create some sort of bio technology that does work with our brainwaves.
Perhaps a more fun and human-based method would be attempting knowledge transmission from one human to another through some sort of psychic or meditative trance.
I was listening to a podcast on the government funding of remote viewing earlier, perhaps some similar techniques could be used to watch and learn skills or techniques. Granted, not quite as quick as hooking up to the matrix machine!
RE: Would it be possible to download skills into your brain like in the movie Matrix?