“First-generation technology,” he said. “It’ll get better.”

We went on to imagine a world where everyone carried PJDs (Portable Jerk Devices). When a guy cuts in line at the movies, pull out the PJD and it goes off like a siren. Somebody comes to a concert late and stands directly in front of you, the PJD goes crazier than a neighborhood of broken car alarms. Not only that, but the sirens and whoops would be adjusted to the transgression, which, in turn, would be registered on the meter: Kind of a Jerk, What a Jerk, Jerk, Major Jerk, #$%@ Jerk.

Such ideas seemed like pipe dreams only a few scant months ago. But now anything is possible.

What a wonderful world it could be.