Had an idea for a story. The protagonist is a isekaied genius, spent his life studying and tinkering with technology to the point he is convinced he could kick start an industrial revolution. As this thought occurs he dies, and ends up reborn in the American south in 1789, but slavery doesn't exist, and neither do guns, in fact why does everyone have swords, and there is a castle in the distance? Probably cool if the story doesn't have magic.
