When people think of agriculture, they often picture rows of crops on flat lands stretching out to the horizon. But according to agtech start up Plenty, we should be thinking vertical for best yield. Stranger still, Plenty’s agricultural vision is indoors and populated by robots. “The reality is, there are five places in the world where you can grow fresh fruits and vegetables really economically, and all of that land is used up at this point,” said Nate Storey, Plenty co-founder and chief science officer, as reported by Forbes.