My friend Gabe invited me to a dinner party at a friend’s place up on 155th street. This is far higher than I have ever been in Manhattan (I am not entirely sure it isn’t in another state). I will stop off at Gabe’s (who lives way down on 113th street) for a drink beforehand, and hopefully will acclimatize enough at that altitude before heading uptown. If I should get dizzy or short of breath, the subway is reasonably quick and should allow me to descend at least as far as Hell’s Kitchen before suffering pulmonary edema.