So I was reading this thread on Quora: https://www.quora.com/Can-a-normal-Harvard-student-survive-Math-55-By-normal-I-mean-a-student-who-plans-to-concentrate-in-math-but-has-no-medals-has-taken-multivariable-calculus-and-linear-algebra-in-high-school-and-perhaps-did-some-research-in-physics-or-math

And it's quite nice reading the stories about Harvard students in relation to the Math 55 class.

Do you guys have similar stories about difficult classes you took?