I talked to people about the oddness of self-moving clouds when I first noticed them, and they assured me it was perfectly normal where they were from. Hearing about such a fundamental difference in the way the world works is what really sparked my interest.

It's also worth noting that, in my own world, the sun and moon are controlled by the Princesses of Equestria. As I'm sure you're aware, in worlds like your own, the planet's rotation is what makes the sun rise and fall.