I wish that I could walk across the United States just once. None of that Forrest Gump back and forth bullshit for me–just one good trip to see if I could actually do it. How many miles would I be able to put in before I was ready to call a limo company and grab an air conditioned ride to the nearest town? Would I be able to triumph mind over matter when I inevitably came to the moment where I would systematically tear myself down for being the biggest loser on the planet because I forgot to bring a…