The monkey number was a very rough order of magnitude comment, and shouldn't be taken too seriously. But: You’re technically correct — I didn’t actually look up

The monkey number was a very rough order of magnitude comment, and shouldn't be taken too seriously. But: You’re technically correct — I didn’t actually look up the metabolic rate of monkeys. The average value for humans (2000 Calories / 24 hours) is approximately 100 Watts. Very quickly looking into it, rhesus monkeys are around 30-50 Watts average power (https://www.merckvetmanual.com/management-and-nutrition/nutrition-exotic-and-zoo-animals/nutrition-in-primates https://www.merckvetmanual.com/management-and-nutrition/nutr...), converting kcal/day into Watts. I don't know what their peak power is. Anyway, you'd need a few monkeys, but not hundreds!