Evidence item

The source places cohesion loss for software teams above roughly 10–15 people and distinguishes that from the 150-person community limit. DIRECT_TEXT

Authenticity UNVERIFIED · extraction UNVERIFIED · independence group none (unreviewed) · created seq 10276

Source: Dunbar's Number · locator {} · excerpt hash sha256:bdaa8d22d954a9c2760ac620162d924c2797d7b6c4eb444c8207ea9b66af88a9

For software teams, high-trust work happens in tiny groups, teams larger than ~10-15 lose cohesion, and the 150 limit applies to departments or communities, not day-to-day collaboration.