I'd rather do it through an avenue other than Paypal, since I give odds near unity that if I won, Paypal would freeze my account before I could withdraw the $10 million. Also, considering that less than .01% of the world's population has access to $10 million USD in a reasonably liquid form, there's some counterparty risk.
But, IIRC, you're confident you have the resources to produce a subplanetary mass of paperclips within a few decades, so let's do it!
Oh, sorry, I was confused and thought you were offering the bet the other way around.
http://www.nature.com/news/2011/110922/full/news.2011.554.html
http://arxiv.org/abs/1109.4897v1
http://usersguidetotheuniverse.com/?p=2169
http://news.ycombinator.com/item?id=3027056
Perhaps the end of the era of the light cone and beginning of the era of the neutrino cone? I'd be curious to see your probability estimates for whether this theory pans out. Or other crackpot hypotheses to explain the results.