. agriculture: agr. kilowatt: kw.\rC. Ill Envir.\rfunction of transp. & comu. & popu.\rA. Agr:\r1. by 21st c. on the way out\r2. now: 1 acre- 1 person\r3. future: 20 sq. feet - 1 person by a biological system\rB. Food production:\r1. protein:\rfrom petroleum by microbe, conversion; better than natural protein; 3% of today's p. output for\rprotein of all\r2. food:\rfactory-made; land for living, park, recreation, hunting & wilderness\rC. Raw materials;\r1. sea: inexhaustible; water supply\r2. space:\ra. cheaper - 1 man to the moon: 1,000 kw-hrs for $10-20 techniques now primitive\rb. space commLessonies: Moon, Mars, etc.\rc. space stations:\r1. space tourism: Hilton Orbiter Hotel\r2. medical research: a cure for cancer, even death
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