Criticism and skepticism are fine. What's not fine is criticism based purely on emotion or lack of information.
"The timeline is unrealistic and major problems X, Y, and Z must be overcome." I welcome this kind of comment.
"Going to Mars is stupid. You'll just die in a box. We should focus on climate change instead." This is what I'm complaining about.
SpaceX has a bunch of rocket companies working on reusability when just a few years ago that was dismissed as stupid. Tesla has a bunch of major car companies working on serious electric vehicles when just a few years ago there was nothing of interest. Both of those are already revolutionary.
"The timeline is unrealistic and major problems X, Y, and Z must be overcome." I welcome this kind of comment.
"Going to Mars is stupid. You'll just die in a box. We should focus on climate change instead." This is what I'm complaining about.
SpaceX has a bunch of rocket companies working on reusability when just a few years ago that was dismissed as stupid. Tesla has a bunch of major car companies working on serious electric vehicles when just a few years ago there was nothing of interest. Both of those are already revolutionary.