If you think I'm saying something that is being done can't be done, you aren't following what I am saying. Many of the agricultural/grazing practices done have sucked. Improving them is great. No doubt free range grazing is good for the soil and good for diversity. How we got here was by extirpating most of the native ruminate animals and intensely farming. That has no bearing on the 90/10 rule, the population of the world, or the limits of the surface of the Earth.