the propulsion system had a redid you understar redundancy in it.hose things don't exist if you go to mars. there's no free return. and another one of my innovative thoughts, of course, when you have something cycling around the earth and you're going to launch, and catch up with it, that's called a hyperbolic rendezvous. it's a little more difficult because it has to be on time, and then about five months later you're going to swing by mars and the -- they're going to enter the atmosphere and make a landing. how do you protect against a propulsion failure? it's like a war time pilot. if you have a target, you send one bomber there. it will get shot down. if you send two fighters there, one of them is going to get through. you can have a dual launch, and instead of -- in formation, you bolt them together, nobody started that before. tell me why you think that congress -- given what's happening with nasa now would possess the kind of money it would take to get us to mars in the first place. a lot of people don't think that's a political will is there