When I was in 2nd year High School around 1970 I prepared and gave a short talk on the Solar System and its various planets. I am sure it wasn’t as sophisticated or as informed as Mr Bezos, who seems to have been reading too many Science Fiction authors from his big shop. Now 50 years later I have seen the NASA travelling space exhibition, and the reality and limits of that technology hasn’t changed, nor has our evolutionary unsuitability for prolonged space travel.