Toby Wilkinson is one of the world's leading Egyptologists, whose books have ranged across the full sweep of pharaonic history. His latest, The Last Dynasty: Ancient Egypt from Alexander the Great to Cleopatra, covers the 300-year Ptolemaic period — stranger and more modern-feeling than the Egypt of the pyramids, built around commerce and cosmopolitanism rather than divine kingship, and home to the greatest concentration of scientific talent the ancient world ever saw. Tyler and Toby cover how Alexander took over the empire almost without a fight, why Alexandria became the Manhattan of the ancient world, whether the era was as philosophically fertile as it was scientifically, whether your ancient doctor's visit had positive expected value, what Egypt was actually exporting and selling, whether living standards rose above subsistence or stayed Malthusian, how the ethnic divide between Greek rulers and Egyptian subjects shaped society, what constrained the Ptolemaic Empire from becoming the next Rome, whether Cleopatra has been overhyped, what Julius Caesar was really thinking when he sided with her over her brother, the new frontiers in archeology, whether Herodotus can be trusted, what ancient Egypt knew about Israel and India, when Egyptian jewelry peaked and why, what triggered the sudden emergence of civilization across the ancient world, why a six-year-old Tyler knew King Tut better than Napoleon, and much more.