How safe did people in the Roman Empire feel admitting mistakes, taking risks, or voicing criticism? Two words: Decimatio.
Amy Edmondson's concept of Psychological Safety measures whether team members feel safe taking interpersonal risks — admitting mistakes, asking questions, speaking uncomfortable truths.
The Roman Empire invented its own word for this: Decimatio. Every tenth soldier is beaten to death by his comrades. If that's not an anti-indicator for psychological safety, nothing is.
Decimatio was Rome's most brutal disciplinary measure: when a unit failed, every tenth soldier was beaten to death by his own comrades. Crassus applied it in 71 BC against his legions in the Spartacus War. Mistakes = death by your own people.
In a safe organization, mistakes are treated as learning opportunities. Retrospectives and blameless post-mortems replace punishment.
When Senator Cicero uncovered the Catiline Conspiracy in 63 BC, he was first celebrated — then exiled. Cassandra-callers like Cato the Elder ("Ceterum censeo Carthaginem esse delendam") were ignored for years before being proven right.
Early warning systems only work when bearers of bad news are protected. Those who report problems need protection, not exile.
Rome integrated conquered peoples better than most ancient empires — auxiliary troops, citizenship after 25 years of service, the Edict of Caracalla in 212 AD. But: slaves (30-40% of the population) had zero rights. Women were politically invisible. Christians were persecuted.
True inclusion means participation for all, not just useful groups. Rome's selective integration was better than nothing, but far from ideal.
Individual initiative was life-threatening for Roman officers. When Publius Claudius Pulcher went into battle against the bird omens in 249 BC ("If they won't eat, let them drink!"), he lost the fleet and was put on trial. Creativity = insubordination.
Innovation requires calculated risks. When individual initiative is punished, a culture of passive order-followers emerges with no adaptability.
Asking for help was considered weakness. Varus did not request reinforcements in the Teutoburg Forest in 9 AD, even as Arminius's betrayal became obvious. Three legions destroyed. Augustus's reaction: "Varus, give me back my legions!" — blame instead of systems analysis.
In safe teams, seeking help is a sign of strength and self-reflection. Timely escalation saves projects — and legions.
Political murder was Rome's unofficial career tool. Caesar: 23 stab wounds from Senate colleagues. Caligula, Claudius, Domitian, Commodus — all murdered by their own staff. The Praetorian Guard sold the imperial throne to the highest bidder in 193 AD to Didius Julianus.
Mutual trust is the foundation of psychological safety. When your own bodyguard murders the boss, trust is at zero.
Rome's most brilliant minds often met bad ends. Archimedes was killed by a soldier during the conquest of Syracuse in 212 BC. Seneca was forced to commit suicide by his student Nero. Ovid was exiled. Talent was useful, but talented people were replaceable.
High-performance teams actively protect and develop their best minds. Talent retention is not accidental but a leadership responsibility.
Average score: 1.1/5 — The Roman Empire is a textbook example of what Edmondson calls a "fear organization." Punishment was not only accepted but institutionalized. Decimatio shows the extreme: not the commander is punished, but randomly selected subordinates — by their own comrades.
The Praetorian Effect: The Praetorian Guard — created to protect the emperor — murdered more emperors over the centuries than any external enemy. This is the ultimate proof of absent psychological safety: when nobody can voice criticism, violence becomes the only feedback channel.
Cicero's Paradox: Cicero saved the Republic from the Catiline Conspiracy and was first celebrated as "Pater Patriae" — then sent into exile and ultimately beheaded on the orders of Mark Antony. His severed hands were displayed at the Forum Romanum. The message to anyone wanting to speak uncomfortable truths was unmistakable.
Why Rome still worked: Rome survived for centuries despite zero psychological safety because it had other strengths — military superiority, infrastructure, legal system. But the lack of safe feedback channels was a major reason for its fall: when problems grew too large, nobody dared to name them anymore.
Hopefully safer than under Crassus. Find out.
Start Psychological Safety CheckInspiriert von Amy Edmondson — Psychological Safety