The mythos of Game of Thrones draws theories from fans like moths to dragon flame, and scientists are not immune. It's Okay to be Smart pulls together the various theories about different aspects of science within the lore in one tidy video covering everything from orbital dynamics to chemistry.

Host Joe Hanson starts with trying to explain the bizarre seasons of Westeros with the three-body problem, detours through that astonishing geologic history of Westeros and Essos, then does something new at 4:42 when he starts in on a rapid-fire accuracy assessment of Valyrian steel, dragon fire, dragon flight, wildfire, milk of poppy, the massive ice wall, and dire wolves.