In finance they have a saying, "you're either quick or you're dead."
In poker, the winner usually has some combination of favorable luck and excellent snap judgment ability.
Snap judgments are also critical in countless other tasks - Gladwell practically wrote a whole book about it. Yet, in life, people call me "judgemental" or say that I "generalize" as if it's a bad thing.
People generalize, because their generalizations are generally correct. Why are snap judgments about life (and people) a bad thing, when it's a critical skill set to almost everything else you do?