Jim's new book of essays, When Einstein Walked with Gödel ... The Platonists who believe mathematics is transcendent ... Against viewing math as transcendent ... The implications of Gödel's Incompleteness Theorem ... What's so special about light? Einstein can explain ... Tachyons, the hypothetical particles that travel faster than light ... How Jim became a "rigorous dilettante" (with cameos by B.F. Skinner and Bette Midler) ...