perhaps it is - but it's a cultural thing, and culture tends to affect both the private and public sectors. DARPA is still doing impressive things though as fa

perhaps it is - but it's a cultural thing, and culture tends to affect both the private and public sectors. DARPA is still doing impressive things though as far as I'm aware. NASA is once again doing cool things, but I can't help but suspect that interest in space was reignited by SpaceX, and Elon Musk is the archetypal definite optimist.