To quote the post I wrote in the double post of this topic (which i didn't realise was a double) ; I think it is highly possible. It would be complicated, but theoretically you should be able to hook your brain up to some sort of machine that could show your dreams. And also, about scientists not seeing it as a worthwhile cause, I think they would consider it as a useful invention. Even if they don't think it would be useful in terms of the advancement of mankind, someone would realise you could make a hell of a lot of money out of it... as is human nature.