And by golly, it's very realistic!
In a nutshell, simulated water has always taken up gobs of memory, so its animation is usually fairly static to conserve space. A new algorithm created by Nvidia makes animated fluids more realistic AND doesn't consume tons of computer space. Anyway, the videos are fun to watch, especially at around 30 seconds in the first one, where you can see the underlying particles that make up the water. I think I like the second video better. The water crashing against the lighthouse really puts the animation into perspective. Can't wait to see this animation integrated into new video games!
http://www.destructoid.com/the-future-o ... 2467.phtml
If you're a real science nut, here's the PDF written by the developers of Position Based Fluids.
http://mmacklin.com/pbf_sig_preprint.pdf