An entire American consulting and software industry exists to capture what employees know before they leave. It arose in the 1990s and has been repeatedly reinvented, which is itself evidence. A problem that stays solved does not need solving every decade.
business
Onboarding
American organizations have a named, designed process for bringing a new person up to speed, with owners, checklists and a timeline. It is a large investment in transfer, and it exists because transfer happens constantly.
The exit interview
A formal conversation held on the way out, partly to learn why the person is leaving and partly to extract what they know. The timing is the point: the attempt to capture the knowledge begins after the decision to leave has been made.
Median tenure
The Bureau of Labor Statistics reports that in January 2024 the median American wage and salary worker had been with their current employer for 3.9 years — the lowest since 2002. For workers aged 25 to 34 it was 2.7 years, and twenty-two percent had been in post a year or less. Half the workforce leaves within four years. Whatever they learned goes with them, and the organization is left with whatever it happened to write down.
Tribal knowledge
The standard American phrase for what a company knows but has not recorded. It appears in engineering, manufacturing and software without irony. The metaphor concedes the whole thing: the knowledge is oral, held by initiates, and passes by contact rather than by document.
Documentation debt
American software culture has a word for the accumulated cost of undone documentation, and it is borrowed from finance. Debt is something you take on deliberately, in order to move faster now, intending to pay it back later. Most of it is never paid back, and everyone involved knows that when they take it on.
Consultants
American corporations spend heavily on external advisers who arrive, learn the business, produce recommendations, and leave. A recurring complaint inside those companies is that the consultants are selling back knowledge the firm once had. The complaint is often accurate, and the spending continues.
Reinventing the wheel
The phrase exists in American English as a criticism, and it is used constantly — which means the thing it describes happens constantly. A culture only develops a ready reproach for a failure it commits often.
The OODA loop
John Boyd, a US Air Force colonel, built a model of decision-making out of his experience of air combat: observe, orient, decide, act, then repeat. His central claim was about speed — that cycling through the loop faster than your opponent is what wins, because it leaves them reacting to a situation that has already changed. As a Weapons School instructor he was nicknamed Forty Second Boyd, for his standing bet that starting from a position of tactical disadvantage he could defeat any student pilot within forty seconds.
The model spread from the Air Force into American business and sports coaching. It is a formal argument that acting quickly beats acting correctly.
The case method
Harvard Business School teaches almost entirely by case. Students are given an incomplete business situation, cold-called without warning, and required to state what they would do. Not what the considerations are — what they would do. And a substantial part of the grade is participation, so silence is penalised directly.