Not quite. The (paraphrased) instruction is "write something you know to be true, or believe to be true, and keep reducing it until you reach what is true". So knowing that you don't know for sure that something you know in everyday terms is 'true' (I.e. Earth being round) is very much a part of that reduction process. Now take it further: reduce the various reasons, ways, evidences etc. that we've brought up in this thread and reduce them down to what they truly seem to be. Then take that and reduce it down.  By reducing, we recognise and understand what is not absolutely truthful in our understanding; thought-images, conceptual models, emotional beliefs of ourselves and the world - we take all these things and attempt to identify what is untrue about them. When something is identified as untrue, it can be put down. Eventually, maybe we put everything untrue down.  So it's not about figuring out what you are, it's putting down what you're not. And I think one of the biggest risks is believing what anybody else says you 'truly' are. Because your head-canon of what they mean becomes a new thing you carry around, a new untruth. Many people seem to be trying to figure out how they can prove to themselves they are infinite consciousness or whatever. Don't. Won't work, can't win. Just find what is untrue in every word, thought, deed, and belief, and put them down