The Postal service better step up their game with gadget concepts like this one on the loose. The Stopper Postcard measures how long it takes that postcard to get from point A to point B. So, now postal workers have something else to stress out about. It’s a constant reminder of how far behind they are on any given day. Let’s hope it doesn’t push some of them over the edge.

My one question is this: How long does it count? I, like many of you have mailed things and have waited for things that have apparently been swallowed by a black hole. So, if you never receive a package, is it still counting the days up to infinity?

I also wonder how many of these little devices would mysteriously disappear from your letter.

[Designboom]