He looks crazy, with the enormous beard, but his appearance belies an impressive amount of sanity. I've been really impressed by listening to him. In particula

He looks crazy, with the enormous beard, but his appearance belies an impressive amount of sanity. I've been really impressed by listening to him. In particular, he's very up-front about what we don't know yet, and the uncertainty involved, and he's very careful not to promise more than he can scientifically justify. This sort of thing does not come through very well in sensationalist mass-media portrayals of him, though.