According to me. On the grounds I'd like other species to exist other than humans and their domesticated animals. http://xkcd.com/1338/ http://xkcd.com/1338/

According to me. On the grounds I'd like other species to exist other than humans and their domesticated animals. http://xkcd.com/1338/ http://xkcd.com/1338/ This in some ways even understates the problem e.g. Fish stocks. There are different kinds of limits other than say, the Soylent Green limit. One is whether our planet is cooler with wild animals or having a few percent more cows. Cows are cool but not as much as that! We can have billions more people on Earth but in order for that to happen we need radical, radical technology changes. The most obvious step forward is Vat Meat. No animals required.