Speaking of Tarski's theorem: http://johncarlosbaez.wordpress.com/2013/03/31/probability-theory-and-the-undefinability-of-truth/ … http://intelligence.org/wp-content/uploads/2013/03/Christiano-et-al-Naturalistic-reflection-early-draft.pdf … Probabilistic logic as a way around Tarski? Also, note coauthor.
@GabrielDuquette well, the one bit is either ‘no, it’s stupid, not worth reading’ or ‘yeah, interesting’. then usually want to know why