A look at an experiment in Busan, South Korea, where 54 families are sharing data about sleep, trash, and more to help build a smart city with 30K homes (David Belcher/New York Times)

David Belcher / New York Times:
A look at an experiment in Busan, South Korea, where 54 families are sharing data about sleep, trash, and more to help build a smart city with 30K homes  —  Fifty-four families volunteered to share data on everything from sleeping habits to trash volume to help developers make a city from scratch in Busan.