cohort selection - Started from 5 channels: nouns, purple, base, degen and dev. We kept up to 400 of each channel’s most active casters from the past year. - Added the accounts that group follows most, one hop out. - Pulled 90 days of casts, reactions and app keys for everyone, straight from a Snapchain node. - Compared the days since Oct 15 with the same number of days just before. “Normal” is the same test run on an earlier window, so we know what a regular week looks like. - A random sample of 10k FIDs is the check against the whole network.