This causes the open string to be "bent" up a half-step by the initial force of your pick stroke, which creates a very heavy sound. This is one of very few ways to make "binary riffing" interesting.
To hear this technique in action, and to get some additional tips on how to build riffs using this idea, check out the following video:
Thanks for watching/reading, and I'll see you guys next time.
By Kevin Goetz