Two violent physics simulations in one day?

A friend just pointed me to a post by David Pogue at The New York Times in which he describes Line Rider, an online applet that allows you draw (potentially dangerous) terrains that a little sledder proceeds to cruise along (potentially fatally), subject only to the law of gravity. Oddly enough, Seed magazine’s “Daily Zeitgeist” for today linked to a video on YouTube that also uses physics simulators for nefarious ends.

It’s about time we brought some humanity to an otherwise abstract science!