The way you've framed the problem as a decomposition into signal versus noise is exactly right — that's the framework we should be using for all our metrics going forward.

I do not follow — is life expectancy going up or down here? (edited to fix a unit)

I agree.

Amina Steiner This is exactly the kind of methodological rigor we've been lacking — breaking it down by user acquisition source and controlling for platform differences is the right call.

Aligned with the feature rollout schedule. See /u/plg_idril_flint/p/plot-0084.

The recovery matches previous cycles. (edited to fix a unit)