My next talks will be at the HowTheLightGetsIn Festival at Hay-on-Wye, UK (May 24-27, 2019); at the Templeton Workshop on Randomness and Providence at Casablanca (June 16-20, 2019); at the Central Topics in Logic Seminar at the MCMP (July 10, 2019); at the Research Colloquium at Regensburg University (October 22, 2019).