Comment Re:Why matrix computers eat people. (Score 1) 460
As far as cattle taking more energy to raise then is gained from them, this is absolutely untrue. It takes a heck of a lot more energy to cultivate ground, plant, raise, and harvest plants then it does to throw a couple of head of cattle out and let them eat the grass that grows naturally.
Also, the cattle fertilize the ground as they graze. After a few years of grazing, the ground is a fair bit better off than before, and none of the grass is wasted since it is turned into beef. Granted most people do supplement the cow's diet with grain and hay, especially during the winter. But we grow our own hay on land that cannot be used for other purposes (you try growing crops on a 45 degree slope).