“The idea of a one way mission, that, you know, you go to Mars, spend two years there, then have a suicide pill – or you go there at age 65 live for twenty years and then check out – no. That is not attractive. But what is very attractive is the idea of the “Normandy Beach Approach” – which is, you go to Mars, one way, not with the intent of dying there – but with the intent of living there. You take the beach. You send, you send people there not with the intent of abandoning there but with the intent of joining them there with more people more equipment more supplies more of everything. You back them up and you take the planet. And, um, that’s the proper concept for a one way mission – and if you’re prepared to do that, then that is the most efficient mission by far.”