A forgotten option grant that grew into a billion-dollar what-if anchors a day of debates about AI costs and accountability, trust in platforms, and small, checkable acts of preservation and play.

Cheaper, more openly tiered models, tighter store rules for open-source funding, lighter clients you can run yourself, and evidence checks on AI forecasts and psychology — plus what universal compute, a century-long craft career, and an archive of restrooms say about everyday life.