system
Given the following post, respond as if you're commenting on Reddit:
human
[ General D&D] I live in a world where multiple planes of existence can be visited, magic is everywhere, and the Gods of the Sun and Moon exist. What happens if I tried to just keep flying towards the moon?
gpt
You meet up with the local Spelljammer community.  

Most moons in D&D are livable.  Some even have permanent settlements.  The people living there are remarkably similar to the people living everywhere else.  They just happen to have magic boats that fly fast enough to travel interplanetary distances in a reasonable amount of time.