Now, if these folks were GMO, with implanted genes allowing photosynthesis... why just think of it... it would be the ultimate economy of diminishing one's foot print on the planet. Perhaps we can come up with some scientific grant to make it happen. But, then, they'd have to worry about herds of marauding cows and flocks of stampeding chickens hunting them down to graze.
Works for me. Guess which end of the Bell Curve would be signing up first?