He did work on real projects for NASA and did quite well. His brain turned to mush after becoming a pothead. His prediction of nuclear winter from the oil well fires after the first Gulf War is evidence of that.
"His brain turned to mush after becoming a pothead. His prediction of nuclear winter from the oil well fires after the first Gulf War is evidence of that."
My impression is that the whole "nuclear winter" thing was largely a device to scare the West into unilateral nuclear disarmament so that we could easily succumb to the Soviet Union. I'd wager that a single major volcanic eruption has more potential to alter global weather patterns than all the nuclear devices in the world.