Ask HN: Why do tech people love coffee?

I was looking for filter coffee maker https://www.myhomeseries.com/coffee-machines/10-best-filter-coffee-machines/ and when i was looking for review website ,thought strike on my mind, why tech people love coffee??

It’s a relatively inexpensive legal stimulant. It’s not just tech people. It seems popular amongst all class of people most everywhere.

Since programming involves no other physical activity than some finger- and eyeball movements interspersed with periods of just thinking, my body tends to assume that I'm ready to sleep before long. Coffee mitigates that somewhat.