The path of a man’s life is straight, straight, straight, until the moment when it isn’t anymore, and after that it begins to meander around aimlessly, and then get tangled, and then at some point the path gets so confusing that the man’s ability to move around in time, his device for conveyance, his memory of what he loves, the engine that moves him forward, it can break, and he can get permanently stuck in his own history.

Charles Yu, How to Live Safely in a Science Fictional Universe