I’ve done it before, mastered them. I’ve traveled beneath the earth’s surface in Hong Kong, Paris, Rome, other places. Just to make that clear, you know. Mitigating circumstances for finding myself in New York City for a day and needing to re-master the subway because of my annoying tendency to forget basics. So here I am, looking at the hole in the bustling sidewalk like it’s the one Alice fell down. Dare I? I mean, once you step into it, can you change your mind, turn aroun