False (with a possible exception for mindless code monkeys, if such actually exist). It's not hard to get stuck on a wrong approach to a problem, or to know you're doing something wrong but not quite why it's wrong, or to have your mind go blank when you're trying to solve something.
I spent my college years writing very little code. Burnt out; too busy; depressed? I don't know; but I was blocked. Previous to college I had written thousands of lines per year, since junior high school.
