I liked the idea of a cosmos, but in practice it didn't work. Upon reflection, sitting on the settee with the weight of the universe on my shoulders was less than restful. So yesterday I moved it in its entirety into the hall.
I like it better out here. For one thing, the music of the spheres is more muted when I'm trying to relax. For another, you get an astronaut's eye view when you're coming down the stairs. It's a bit like having your own Hubble telescope.
The only problem being that I now have a lot of black holes in the front room, waiting to be filled with polyfilla.