I once got to briefly discuss project Orion with Freeman Dyson at a book signing. IIRC (it was a long time ago) he said that : - he thought it could be made to

I once got to briefly discuss project Orion with Freeman Dyson at a book signing. IIRC (it was a long time ago) he said that : - he thought it could be made to work - all big engineering projects (dams, skyscrapers etc) kill people - putting all that radiation into the earth's atmosphere couldn't be justified