Apparently Seed has a feature called “ask a science blogger” and there is a question of the week. This weeks is “If you could shake the public and make them understand one scientific idea, what would it be?”. If anyone can tell me where to find this, though, I’d be grateful. I found it via Kevin V, and here is his answer.
I don’t have a burning answer, but following on from some discussion down the pub this week I shall go with “as far as physics is concerned, we have no free will”. People have been bashing their heads against this one for ages, because the obvious answer is obviously unpopular, but ever since physics based itself on “the future is determined by the past” free will went out of the window. In fact its worse than that, because as soon as the world is described by a 4-d space-time (or you can go stringy and have 11-d if you want) then the entire structure is there and all we have for free will is the illusion of moving through it. And I don’t think QM helps you.