I was wondering this too. I'm pretty sure I have both.

For instance, I fundamentally think I'm pretty great when compared to any "average person." And even most "high-functioning" people. However, I realize that talent is essentially meaningless in the grand scheme of things without tons of social proof you're always perceived as a nobody, so I still work my ass off and try not to let my own aptitude go to my head.

Is that high-ego or low-ego?

The important bit is the bit in between, in parentheses: "ego affects comfort level".

Are you feeling big and developed enough to talk to someone of the opposite sex? While ideally it would make no difference, it's certainly the truth that many of us are happier to engage socially with those of the same sex than those who aren't.

I think they mix up ego with confidence, Those aren't the same thing at all.

This question has bothered me for a long time! As far as I can tell there are a whole bunch of different things people mean by 'ego' and without an agreed upon way to measure it, it's hard to know whether any two people are really talking about the same thing.