Hi,
After reading the astronomy idea, I got an idea for implementing different areas in one simulation, connected by tunnels (like the internet sharing tunnel).
With different fields one can simulate different areas. This can be done with larger size simulations, but: It is difficult to oversee a large sim; it gets chaotic.
As to overseeing the different areas, a 'tab system' similar to Firefox (an internet browser) could be used.
What do you think?
Henk :)