In business settings, I often hear complaints that people did not learn anything from past experience, although that error has already been made and the information was there.

Thus, I postulate:
1. For information to be present in a unit, it must be present in all (or at least a substantial part) of the members of the unit.
2. The members of the unit must actively construct that information in their minds.
3. Mere presence of information somewhere does not produce the memory in people’s minds.
4. As usually observed, that memory is present in the minds of those who directly encountered prior incidents.

This boils down to the question: What did knowledgeable people do, so other people could actively construct the information in their minds that we complain about?