If you watch the TV show Alone where they have to survive with minimal food (what they find/kill) one of the most important skills is to do literally nothing and not go insane. It conserves calories. If they had a book or TV I’m sure they’d go for those, but they don’t so they just half nap do nothing.
Even 200 years ago (and many people today) humans spent vast amounts of time doing nothing. Things like farming were seasonal and required intense work at times and no work at others. When there was nothing to do, people often did nothing.
I was in rural Dominica and encountered a gent with no TV and I doubt he could read. He had a tiny little house and grew his own food. He’d usually be sitting outside doing absolutely nothing.
You often hear Europeans meeting indigenous people going on about how lazy/idle they were. It wasn’t because they were slackers, there was just nothing that needed to be done and doing other stuff was a waste of energy.
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