"Complex systems reward short-term fixes that accumulate long-term fragility.
The most expensive failures are quiet ones: a series of decisions that were defensible in the moment and disastrous in combination. In a dependency upgrade with unknown blast radius, nobody wakes up wanting the incident; they wake up wanting the shortcut.
In a dependency upgrade with unknown blast radius, the argument will be that you are “unblocking” the team. Unblocking without a guardrail is how you create debt that cannot be paid down quietly. The system learns from what you allow under pressure, not from what you say you value in calm weeks.
John Sterman is a reminder to audit the argument, not the intention. Write the failure story forward while the decision is still reversible, then insist on one guardrail. Make the decision legible to the next person who inherits it.