> Incidently, People who study or do a lot of thinking heavy deep work also tend to be coffee addicts. coincidence? Coffee can be quite expensive, and thinking

> Incidently, People who study or do a lot of thinking heavy deep work also tend to be coffee addicts. coincidence? Coffee can be quite expensive, and thinking work that requires a lot of education tends to correlate with higher income, so I wonder if coffee drinking just acted as another wealth indicator.