When and why did us spinning on a rock in "space" become a rational thought, instead of irrational?

Why aren't we crazy simply because we believe the fact that we are spinning on a rock in space. ( I am not doubting the premise) Just that some how it goes against everything that is rational in this world, yet we are ok with it.

We are on a flying rock that is traveling through space. It sounds like something out of the comic books or the insane asylum.

Why are we ok with this irrational thought? And we call it science