What is the essence of transcendental philosophy? The approach posits, first, that we cannot know how the world really is, or that the question of how the world really is is badly posed. Secondly, it posits that human practice of some kind creates worlds, that the current world we know is one in a series of worlds that have different transcendental horizons and are not really comprehensible to one another. It then speculates on what the ‘mechanism’ is that churns out this cascade of worlds, and where it is ultimately headed.