The Dunning–Kruger effect

We discussed this at a recent tarot reading.

The Dunning-Kruger effect, is a cognitive bias,  where people frequently overestimate their ability/capacity at doing something they don't know very much about.  It was first described by two  psychologists David Dunning and Justin Kruger in 1999.  

So men who say they could beat Venus Williams at tennis (which was a meme that amazed me at the time) are overestimating their skill set in a big way! Or,  people who think anyone could do that before they try doing that themselves

We were talking about a date my client had where her date kept telling her he could do her job better than she could,  and I said,  yes, the Dunning-Kruger effect.  And then I had to describe what I meant,  and she said, you mean it's so common there's a word for it?!  and we both laughed.