When Kenneth Wehr started managing the Greenlandic-language version of Wikipedia four years ago, his first act was to delete almost everything. It had to go, he thought, if it had any chance of surviving. Wehr, who's 26, isn't from Greenland-he grew up in Germany-but he had become obsessed with the island, an autonomous Danish territory,...

This is today's edition ofThe Download,our weekday newsletter that provides a daily dose of what's going on in the world of technology. How AI and Wikipedia have sent vulnerable languages into a doom spiral Wikipedia is the most ambitious multilingual project after the Bible: There are editions in over 340 languages, and a further 400...