"Learning requires exposure to consequences.
In a Sev2 that might become a Sev1, speed is rewarded and caution is punished, even when the picture is incomplete. Under that pressure, decisiveness gets confused with certainty.
The failure mode is not choosing wrong; it is choosing accidentally. You see it in postmortems that collapse a chain into one cause and call it solved, where the system commits itself while leaders stay “open.” Make the signal observable, not philosophical, so you can act without debating intentions. If you cannot describe the boundary simply, the boundary will not survive escalation and reorgs.
Define the exit condition before you read the next signal, so you can stop without rationalizing. That is how you stay decisive without pretending to be certain. Do not add ceremony; add precision.