Ego, pride, wrath, fear, gods, superheroes, mortals, and lots of killing. Welcome to Homer's Iliad, which reads at times like a script for a Tarantino film or the latest installment of the Avengers franchise. In the first episode of the EconTalk Book Club on the Iliad, Ido Hevroni of Shalem College speaks with EconTalk's Russ Roberts about the surprising relevance of a 2800-year-old epic poem. Hevroni also provides useful background for first-time readers and what it's like to read the Iliad with combat veterans.

What if the surgery that fixed your knee did no better than fake surgery? EconTalk host Russ Roberts speaks with Dr. John Mandrola about a striking clinical trial in which patients who received sham knee surgery (a real incision, but no actual repair) did as well or better than those who had the actual procedure--one performed 700,000 times annually in the U.S. The conversation ranges from the power of placebo and nocebo effects (how expectation of harm can cause real suffering) to the broader philosophy of "medical conservatism"--the idea that humility, watchful waiting, and honest counsel often serve patients better than the knife. Mandrola argues that financial incentives, professional identity, and language itself ("bone-on-bone," "the widowmaker") conspire to push patients toward interventions that can do more harm than good.

Can a phone be a cow? It could in 1990s Bangladesh. This was the insight of a small number of mobile phone market pioneers who helped catalyze the spread of the greatest technological revolution in human history. Listen as George Mason University economist Philip Auerswald speaks to EconTalk's Russ Roberts about how the extension of connectivity to traditionally excluded populations led to wide-scale transformations in productivity. They discuss the role of little-known entrepreneurs such as Iqbal Quadir and innovators like Claude Shannon in bringing the mobile phone to the entire world. Other topics include William Nordhaus's paper on the cost of illumination as a powerful metric of human progress, Schumpeter's notion of innovation as new combinations, and what Auerswald calls the most important question the field of economics can ask: How much of human progress is inevitable, and how much depends on the determination of remarkable individuals?