I was in a spaceship in a dream and the earth wasn't flat

That’s because your perception of reality influences your dreams.

space rock monkey

Tell us what the dream was about. I'm sure the point was not to point out it wasnt flat.

I'm not one to defend flat earth but I mean cmon. It's because you think it is round, not to mention look at yourself in the mirror, or even your hands in a dream, they aren't even your hands. So you actually give proof to it being flat, because you would not see it normally in a dream, so it must not be round.