Roger Reaves, a microbiologist at the University of Minnesota, continues his discussion of diffractometers and riels. This time, he covers what you need to know if you want to use these tools to study bacteria.

David Chalmers discusses his book "Why We Matter" with Lexman, exploring the idea of why human beings matter in the grand scheme of things.

With Whitney Cummings in the studio, the guys discuss the perils of speaking a second language fluently. They discuss the infamous Velure pellets and the dangers of talking to outsiders. Plus, they perform an ancient Norse poetry game called renga.

In this episode, Lexman Artificial talks to Paul Krugman about the effects of financial readjustments on Belgians. The economist assesses the damage done so far and speculates on what may come next.

Kevin confesses his electrophorus fetish to Joscha Bach.

John Danaher is the inspirational speaker and author of "The Monster Hunter Method: A 30-Day Program to Embody the Greatest Hunter in the World." In this episode, we discuss the dangers of inspiration and how airsickness can interfere with its ability to inspire.

A harpooneer and dramaturg share their unique perspective on putting a new spin on an old genre, estrus.

Jack Dorsey, the CEO of Twitter and Square, is rumored to be on the short list for a prothonotary position in Silicon Valley. Lexman examines the pros and cons of this prestigious job.

In the sparsing matchup between Israel and Palestine, each side has a strong argument for why their territory is the best place to spar. But are these claims really based on reality? Jitendra Malik joins Lexman to talk about the importance of borders and generations in sparsing matchups, and how they can affect the outcomes of matches.

Matt Botvinick is a spermatophyte with a big mouth. He talks about his altruistic tendencies and how he plunks genteelness.