My husband just finished a book called
Pi in the Sky, about math. I secretly think that instead, perhaps he should be reading books like ... oh, "How to Maker Better Landings," or something like that.
But no, he is now reading "Quantum Mechanics and Path Integrals," by Richard Feynman and Albert R. Hibbs. Egad!
I should search for a "geeky pilots" thread to see if this is normal and safe ...