Comment by lapcat

> They just said wealthy people have more freedom on schedule that non wealthy people.

I'm not sure that's true though, unless by "wealthy" you mean trust fund kids. But there are millions of tennis players of various levels of income. A lot of salaried workers in upper income brackets work more than the usual 40 hour week, have less free time.

I'm guessing these engineers weren't playing a lot of tennis: https://www.folklore.org/90_Hours_A_Week_And_Loving_It.html