Special guest, Amy, shows up to talk about hydrology, including details about her work, and an interesting discussion about climate regions on Mars.

Not to be outdone, John stupidly interjects in this incredible and informative conversation to talk about the linguistic function of the suffix, "-ussy".

It's a great episode! Except for John. Why does he have to be here? He literally contributes nothing positive to the show, he's just weird and does these stupid fucking voices that I absolutely HATE. God, I hope John dies at the end.