You have learnt nothing, except that solitude teaches you nothing, except that indifference teaches you nothing: it was a lure, it was a mesmerising illusion which concealed a pitfall. You were alone and that is all there is to it and you wanted to protect yourself; you wanted to burn the bridges between you and the world once and for all. But you are such a neglible speck, and the world is such a big word: all you ever did was to drift around a city, to walk a few kilometres past façades, shopfronts, parks and embankments.