Real question though, please - When we do Research and Duplication by feeding items into the um ... ... bunny ... factory .. thing.... what remembers that progress? Is it the character, or the world?
In other words, if I make a Journey character (because we have to.) and bring it into World "A" and feed it 100 torches, then go into Journey World "B" will torches be unlocked for ME, or will they not be unlocked for that WORLD?
I would think it would be on the character, so you don't have to start over progress if you want to build stuff on a new world.
Character