Caste and brett, i would love to have you talk with me so that we can both understand the depth, the clarity, the reach, the importance of these ideas. And then hopefully some one else out there can become smarter by it. You've read so many interesting aspects of the beginng of infinity, which has become a real passion of mine. Like many people who enter into science, when i was at school, i thought, well, i want to be an astronomer. When i enter university, i want to going do a physic's degree to an astronomy degree and then become a professional astronomer. But t ok caste for the theory of knowledge.