i was told i was crazy, but ....
Honestly, most of us would benefit from doing this for an hour a day to get more fit and contribute to power production. Treadmills that USE power to run is one of the most backward things I've seen. Those unpowered curved treadmills are so much quieter and nicer to use (inherent speed adjustment too!) but they're like patented or something so cost a buttload even though they are simpler.Ideal exercise for prisoners, while providing a community service and being eco-friendly.
That is a lot of machinery for the donkey to move for a small bucket of water.