Apenwarr, who works for a major tech company, wonders if Impostor Syndrome is actually a good thing:
The people with Impostor Syndrome are the people who aren’t sure that a logical proof of their smartness is sufficient. They’re looking around them and finding something wrong, an intuitive sense that around here, logic does not always agree with reality, and the obviously right solution does not lead to obviously happy customers, and it’s unsettling because maybe smartness isn’t enough, and maybe if we don’t feel like we know what we’re doing, it’s because we don’t.
Impostor Syndrome is that voice inside you saying that not everything is as it seems, and it could all be lost in a moment. The people with the problem are the people who can’t hear that voice.