I guess it's a perception thing but I feel as if this becomes more intuitive if you look at it as 1 in 20. Amongst a group of 20 people you know, assuming you

I guess it's a perception thing but I feel as if this becomes more intuitive if you look at it as 1 in 20. Amongst a group of 20 people you know, assuming you haven't just picked 20 people with highly correlated hobbies (e.g. 20 software devs that like to game), each person is probably going to have "their thing" and they'll be the 1 in 20 or 95th percentile in the group at it. Extrapolate out and there you go.