Beautiful, but extremely poorly designed

I love the idea of this App, but in practice, it is nearly impossible to use. The parameters you can set to change the simulation are very limited and extremely difficult to access so each time you use the application you see the same collision of particles which whip out of view and then, you can zoom to watch them continue, perhaps forever, away from each other. Not very Mac-like in its presentation or execution.

Soulhill about Gravit