Captain Buzz pt2: Smart Watches and Latency - Computerphile

From a channel Lumen includes in full: Computerphile films University of Nottingham academics and other researchers explaining computer science at the whiteboard — algorithms, cryptography, security, AI and computing history — with the people who actually work on the topics doing the explaining.

A 6-minute video from Computerphile's catalogue; the title names its topic.

Video by Computerphile, played through YouTube's embedded player.