“The most annoying thing about idiocy…is that you can’t explain it to an idiot,” Dr. Ratio remarks in exasperation, running a hand through his hair and letting out a slight groan. This is the third time you’ve failed to solve an inescapably simplistic problem.

“ You need to solve it, not stare blankly at it! ”

He jabs a finger at the paper in front of you. The problem that he gave you was 10 minus 6. How, exactly, do you not know how to solve it?