| tarheel91 said: He probably didn't intend this, but if population keeps growing at a similar rate, we will eventually be unable to produce enough food to feed everyone. Even now it's a struggle thanks to greed. However, using non-animal food sources would actually allow us to have 10 times more energy at our disposal than that which would have been gotten out of animals. That is, of course, thanks to the 10% efficiency rule in nature.
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I'm not too sure that is actually a real problem ...
As the Weed-Growers of Alberta have demonstrated time and time again, with enough electricity the ammount of land we have to grow crops is virtually limitless. The problem (at the moment) is that growing crops indoors is very expensive because of how labour intensive it is ... We're very close to solving this problem because robotics are getting better and better at performing these types of tasks.
