You might have seen me ramble about this before, but instead of rambling about it, I'm just going to post this link - it's audio, don't worry, you don't have to read anything:
Dunning-Kreuger is a phenomenon wherein the less skilled a person is, the more likely they are to overestimate their abilities. More skilled people are more likely to be modest, or even underestimate their abilities.
SO RELEVANT. ALL THE TIME.
skin by CypherVisor