After falling in love with this amazingly engrossing IP with the live action adaptation which prompted me to watch the Anime in return I do have a gazillion questions about the One Piece fictional universe and its main world which is described as being more massive than Earth yet the gravity somehow seems to be the same as on Earth if not less. So is it a larger bur less denser planet than Earth then?
How did the humans got to the One Piece World did they evolved there in an alternate universe or were they transplanted somehow from Earth?
How do they generate electricity for neon signs and refrigerators when they don't have a single combustion engine. I have not even seen steam power as of yet