Scientifically codified in the "Dunning-Kruger Effect":
(from the article)
"Kruger and Dunning proposed that, for a given skill, incompetent people will:
- tend to overestimate their own level of skill;
- fail to recognize genuine skill in others;
- fail to recognize the extremity of their inadequacy;
- recognize and acknowledge their own previous lack of skill, if they are exposed to training for that skill"
I recognize all of those steps. When I was a wee sprog (like, 17), I confidently entered online art contests thinking, "Oh, probably I won't take first place, but I may come in second or third with this." Goodness. No. No. It might not have been the worst piece in the bunch (it's been too long for me to remember what I was up against), but no where near the top.
Embarrassingly enough, it happened again a few years ago when exposed to pixel art. Thankfully, I didn't enter contests thinking I was going to blow anyone away, but I did think I'd pick it up in a heartbeat since, hey, I was a pretty decent artist in the drawn form. I have enough knowledge now to know that now I can spot good pixel work, but it's probably not going to be something I can add to my own skillset unless you want something 8bit or maybe 16bit.