It said on the screen, Bioregenerating Soil-Based Space Agriculture. The title of the talk was Beyond Intensification. The speaker, a prominent researcher and prolific author, someone who I thought would present clear thinking on how, in addition to intensification of current agriculture, we can go about producing enough food for the earth s growing population. I glanced around to see if anyone else was astonished. Space farming, he said, was the next step after agricultural intensification with food coming from the Moon and Mars. Has it come to that? I thought.