This was prompted by the discussion here:
<a href="http://news.ycombinator.com/item?id=1070604" rel="nofollow">http://news.ycombinator.com/item?id=1070604</a><p>It's not really finished, and it's certainly not complete, but I thought it would give you something to think about.  It's not necessarily mainstream, and it may turn out that I don't believe it all myself, but I hope it's interesting.