[beloch]

I noticed that angular momentum seems to be an unconserved quantity as well. I would not want to be an astronaut in the universe simulated here!

[raverbashing]

Yeah, this is almost a planetary cloud coming together.

But I suppose the collisions are (too) elastic, also there's the issue with the spinning.

But still you can see several concepts in action, and sometimes you get a big planet with a moon orbiting it.