To put things in perspective, Susan is incredibly talented. She went from barely knowing high school math to enjoying advanced mathematical physics in fewer tha

To put things in perspective, Susan is incredibly talented. She went from barely knowing high school math to enjoying advanced mathematical physics in fewer than three years, which means in this three years, she learned Analysis (not Steward Calculus, but at least Baby Rudin, mind you), Differential Equations, Linear Algebra, Abstract Algebra that covers at least groups, rings, and fields, Functional Analysis, Advanced Probability and Mathematic Statistics, Differential Geometry, to say the least. Besides that, she also needed to learn mechanics, E&M, Quantum Mechanics, and what not. She achieved all these in her part time as she was majored in Psychology. What's even more amazing is that she didn't find her latent talent until she went to college, and she could immediately enjoy Feynman's textbook with almost zero background in Physics! Bravo! Bravo!