I’ve started doing that whenever I have trouble sleeping. I start with a random world, set it to orbit, then make another world, have it orbit the first world, then add a third. I let them all orbit eachother.
Do people who do this 3D modelling in their mind thing do a lot of visual things regularly? I would find it difficult to start doing that without being distracted by the million thoughts after 10 minutes.
I think the exercise is really just to distract me from thinking “go to sleep go to sleep” over and over lol.