Bitcoins?

So I've read over the wiki page for it, and it sounds to me like the typical politically-correct, sales-pitchy infomercial anecdotal hogwash doublespeak of a political campaign. I can't make heads or tails of what bit-coin stuff really is.
I remember "folding", which seemed to be some massive public internet based protein-evolution simulation, or something. You get a piece, your PC uses some of its power to work these HUGE equations in the background, you submit its work, and you've then contributed your piece to decoding the human genome, or something.
This bitcoin thing however, seems inherently different, in which it's somehow (and I mean loosely) it's money! I don't know how, or why, or whatever, but it is. I'm not even sure what kinds of questions to ask, really. Shenanigans.
In summary, what the hell is it?

I remember "folding", which seemed to be some massive public internet based protein-evolution simulation, or something. You get a piece, your PC uses some of its power to work these HUGE equations in the background, you submit its work, and you've then contributed your piece to decoding the human genome, or something.
This bitcoin thing however, seems inherently different, in which it's somehow (and I mean loosely) it's money! I don't know how, or why, or whatever, but it is. I'm not even sure what kinds of questions to ask, really. Shenanigans.
In summary, what the hell is it?

