I’ve lived long enough to remember the jeers and mockery when Elon tried developing a rocket that would land after launch so it could be reused, thus saving on cost and material (because prior to that, the big orange fuel tank and twin white rocket boosters would burn up on reentry). The numerous failures were all on video.
Then, the process got mastered, to the amazement of all: literal science fiction, come to life.
Now it’s no big deal.