Sean Martin returns to Necessary & Sufficient for a non-trick question.

Another case of “how could I have waited this long?”  My old pal Seth Kibel makes a splendid debut, and seems to remember more than he thought he might.

Tim is fast becoming the de facto (callback!) Necessary & Sufficient science correspondent.  It was great to have him back to discuss a classic pitfall of scientific inquiry.

It’s always a treat to have polymathic Jesse Ross on the podcast.  Sense, sensibility, momentum, inertia, birds, dinosaurs…and pizza.  Is there anything this guy can’t do?

The irony of tackling pedantry and condescension in this forum is lost on no one.

Oops, bonus topic!  I wasn’t even planning for this, but DLS’s knowledge cannot be contained in a single episode.

Technical whiz kid David La Spina returns to Necessary & Sufficient for some hard-core camera geekery.

Lukas returns to Necessary & Sufficient for a fourth time, and faces the heinous psychic torture that is:  The Lightning Round.