I discourage passive skepticism, which is the armchair variety where people sit back and criticize without ever subjecting their theories or themselves to real field testing.
I've never boxed in my life, never been in a military base in my life, never grew up with anyone in the military.
A friend of mine - a cameraman at MTV - lost a lot of weight from cycling, and I thought I'd try it, too, thinking whenever you look at a cyclist they all look super-skinny, so hey, why not? But then it turned into such a psychologically satisfying thing.

