Second brain for teams
A second brain for teams is a shared, searchable store of a team's knowledge and decisions that both people and their AI tools can draw on, so institutional memory does not live only in individual heads.
In detail
The personal second brain idea, an external store for your own notes and knowledge, scales poorly to teams when it stays individual. A team second brain pools the knowledge so it survives turnover and is reachable in every AI session. When it captures context automatically from AI sessions, meetings, and documents, it stays current without manual upkeep.