This time the guys start by pondering the power of curiosity through the lives of Interstellar heroes, Murph and Coop (along with how to develop a more curious character).  Next, by looking at the trajectory of Dr. Mann, they frame up how a leader might fall prey to the allure of power, flipping morality to suit their own narrative.  Finally, they take Nolan's bait and contemplate the dimension-bending tesseract scene dabbling in the intellectual pool of human ascendance.