Normally, what I do for fun is just nothing. I try to just relax. Normally, it involves just relaxing and reading and maybe going out and meeting up with a friend. I live a very simple existence. I would much rather just sit around and listen to a couple of records and read the paper.
And finally, no matter how good the science gets, there are problems that inevitably depend on judgement, on art, on a feel for financial markets.

