These boats don’t even have engines. They rely on wind sails to move.
What seems more likely to you, that the OP world is roughly the size of our own world, or that Oda randomly decided to make the OP world 3x the size of Jupiter and make regular wooden boats travel at subsonic speed, and he never mentioned these bizarre facts for whatever reason
What seems more likely to you, that the OP world is roughly the size of our own world, or that Oda randomly decided to make the OP world 3x the size of Jupiter and make regular wooden boats travel at subsonic speed, and he never mentioned these bizarre facts for whatever reason
Toriko's Gourmet world 10.2 billion square km but it's normal as most of them are FTL.
Naruto and OP feats are generally hilariously highballed.