I have taken to floating in the Yellowstone. I have finally found a good spot. It’s along the path where I walk Hank, an eddy deep enough to dive in, and wide enough to swim around a little bit. Because it’s an eddy, you don’t get swept downstream, and because I am no longer young and lean, I can finally, float. I was a sinker all the way through my childhood. I was a sinker during the years I led rafting and canoe trips. At summer camp, they lined up on the pier to watch me fail the backfloat. The…