Kenneth Chang

Point of the book is that we have to rationally match risk/cost to reward, not deliberately slam folks into Mars. @kchangnyt @RocketAcademy

@SafeNotAnOption @RocketAcademy Pair Orion with a @BigelowSpace module and do an Inspiration Mars flight, which you liked, I believe.

@kchangnyt Why waste all that money, when you could do it with a Dragon? @RocketAcademy @BigelowSpace

@SafeNotAnOption @RocketAcademy @BigelowSpace That's different from saying #Orion to Mars is "guaranteed dead."

@kchangnyt Orion is $9B to duplicate Apollo. DARPA XS-1 is $140M to revolutionize space transport. Why is media so impressed with Orion?

@RocketAcademy @Rocketeer_UK I love DARPA as much as the next person, but XS-1 is an unmanned suborbital spaceplane that is a paper design.

@kchangnyt "XS-1 is an unmanned suborbital spaceplane that is a paper design." And those microcomputers are toys that can't run COBOL!

@kchangnyt And those airplanes can't cross the ocean like dirigibles can! The argument never changes. :-)