A View of Mathematics (2005) [pdf]
I am not a mathematician but I found that an interesting read. I am not sure how rigorous all this is, and even whether I understood the material completely. It just tickles the imagination. So here is my summary, in the hope it will tickle your imagination too. (If a mathematician can read it, please correct my layman mistakes)<p>TLDR: after applying some special re-normalization to results from quantum field theory, coefficients of different models match and we can even get ratio of integers instead of bizarre numbers.<p>It implies quantum field theory is not so special: we just don't understand some of its features, that seem to come from geometric symmetries.<p>If I'm not too wrong, it also implies everything is discrete in the universe.