And although one person might be able to provide personalized help for one-to-many, this doesn’t scale and is limited to small numbers of “many.” Documented knowledge, on the other hand, can better scale not just to the team but to the entire organization.
Documentation also survives time better, in a way. It can easily persist longer than the experts' presence. On the other hand, knowledge passed directly, person-to-person has the ability to adapt and stay up-to-date on the fly.
