system
A chat on subreddit /r/NoStupidQuestions
human
&gt; You go on any reddit post about jobs or income or wealth, and there are always a shit ton of people coming out saying how they make 6 figures, how they're a doctor, a computer software engineer, run their own business, or are some sort of banker/broker/trader.  

I mean the people making $32k/yr aren't going to be posting about usually.
gpt
Yes. This is called “selection bias.”

This is a classic problem for sociological research. Ask 1000 random people on the street, “are you willing to answer a survey about your debt?” The ones with a lot of debt will say no. The ones with no debt will often say yes. So the survey results are garbage.