Comment Impossible, Impractical or Unpopular? (Score 2) 59
I've been a fan of your eclectic perspective and rational style since I bought the "Last Whole Earth Catalog". I know you were a early proponent and popularizer of space-based solar power and space colonies (at least in late 70's as I recall). Have you changed your views on those? Can I hope that my children will see an O'Neill Cylinder in space (or at least a Bernal Sphere)?
I know faster than light travel is impossible. I know personal jet packs are impractical. Do building those space colonies we dreamed about in the 70's fall in the impractical category -- or just unpopular?
I know faster than light travel is impossible. I know personal jet packs are impractical. Do building those space colonies we dreamed about in the 70's fall in the impractical category -- or just unpopular?