Ask HN: Story about 8D dimensional beings, a good idea?
dystopian fiction written from a 3D and 6D perspective. You certainly know Flatlands by Edwin Abbott. It's a spatially 2D world and already different. Four spatial dimensions would be something you could try out. But how to understand 5D when you don't understand 4D? That's the issue with higher dimensions. There are a lot of entertaining books by physicists about higher dimensions, could be inspiring for your work.