Flashback: Talk by Light

The messenger that works when everything is off. No signal. No wifi. No account, no server, no message history. Two people who can see each other, and a flashlight. FLASHBACK Type a message. The Morse appears under every word as you type, with an honest estimate of how long it will take — because it will take a while. Send it and it pulses out of the flashlight, with a click and a tap for every dit and dah. Or key it yourself on a straight key, where the length of each one is up to your thumb. RECEIVER Point the camera at anything that blinks and it tells you what that light is saying, or what it is. A flashlight across a courtyard. A lighthouse. An airport beacon. The LED on the back of a router. It works out the rhythm on its own — there is no speed to set and nothing to calibrate. WHAT IT READS • Morse, with no words-per-minute set anywhere. It measures the rhythm of whatever it is…