> When you feed a cow you are essentially trading up. At a 50x loss in efficiency. According to this guy [1], the US could feed 800 million people with the gr

> When you feed a cow you are essentially trading up. At a 50x loss in efficiency. According to this guy [1], the US could feed 800 million people with the grain spent on cows today. Not grass, grain. [1] https://news.cornell.edu/stories/1997/08/us-could-feed-800-million-people-grain-livestock-eat https://news.cornell.edu/stories/1997/08/us-could-feed-800-m...