At Valleywag, Sam Biddle highlights a vision of the future put forward at the annual TechCrunch Disrupt conference:

Imagine it’s a few years in the future, and you are driving down the road in an Uber, built by Tesla and auto-driven by Google software. You are in a hurry, so you decide to accelerate and pass the other cars. Your vehicle could then interface with the other cars, and pay them a sliver of Bitcoin to let you pass. You get where you are going faster, and everyone is happy. Programmable currency.

Obviously, mobile broadband has the power to take us in amazing new directions. But this scenario is a wee bit creepy.