Did you imagine that it would be as difficult as it is? I have found that people are not so easy to understand or solve as equations or physical theories.
[People murder other people, for one. Chekov can't quite understand why someone would consciously choose to study something that puts them up against the worst in humanity when they could stick with the safety and serenity of science.
(Ignoring, of course, that his own career-related choices have taken him to a place that involves destructive, violent humanoids that are beyond understanding.)]