Yet if you want to, you can spend the rest of your life figuring out shortcuts and hacks and tweaks to make your rendering faster (to let you zoom further or increase resolution) or to produce things like this video.
It's a lot of fun to play with because you get aesthetic results very easily, yet you can continue to add improve on your results as long as you have patience for.
I can't wait to see a revival of Lemmings, or Worms, with this kind of physics.
I thought that was pretty cool but after reading the article the actual way it was done was much more interesting.
From another post on the site "I researched various different approaches to this problem and implemented the algorithms Conjugate Projected Gradient, Projected Steepest Descent, Projected Gauss-Seidel, Subspace Minimization with Conjugate Gradient, Minimum Residual and Symmetric LQ solvers, as well as Projected Gauss-Seidel with line search using the Armijo rule."
So say we all.