What's nice about playing somebody real is that generally there's more information about them, so a lot of the questions that you'd otherwise have to make up the answers to are already there. ↗
For exercise, I tend to like the outdoors. In Paris, I rent a bike in the street and cycle around, and in L.A. I live up in the hills so I go hiking a lot. I like to stay fit by being generally active. ↗
It is, I think, particularly in periods of acknowledged crisis that scientists have turned to philosophical analysis as a device for unlocking the riddles of their field. Scientists have not generally needed or wanted to be philosophers. ↗