News Summary

• It estimates how far away they are by reading the Bluetooth signals the glasses broadcast.
• Pawel Szydlowski bought several models of smart glasses and catalogued their Bluetooth fingerprints, then wrote software that matches what a phone hears against that catalogue.
• The app is called Zuckoff, which the developer chose as a message to Meta’s chief executive, and which is also the name of a Boston University journalism professor and author of nine books.