It's no exaggeration to say that Mr. Petrov did save the world. If he had passed his report up the chain of command, the Soviet Union could well have launched a retaliation strike. As Jeffrey Lewis is quoted in the article, "we should be talking about the great nuclear war of 1983 if any of us survived."

RIP and thank you sir.

When the available evidence says "blow up the world", a gut-check is in order. Petrov checked himself before he wrecked himself and everyone else. Bravo!

I wouldn't call it saving. It's more like not destroying.

You would hope that for a world ending event they would need verification from multiple stations reporting at the same time though...

I would call it saving it.

He specifically acted against bad information and what he was supposed to do, which required bravery and critical thinking to avoid catastrophe. It was also potentially risking very bad consequences for himself, as his superiors easily could have put him in prison, disappeared him, or otherwise punished his life - even just out of spite - for what he did. He says it was a good thing that he was working that shift and he is right. The odds are extremely high that anybody else would make that phone call up the chain of command, and from there the odds of a nuclear response escalate rapidly.

The danger of nuclear war is that there is no time to double check from other stations.

Imagine, your radars see the incoming, by which time they’re already a third of the way.

The SSNN are somewhere, close, about to launch. Those are close, so little time to react.

Short range missiles in Germany are 5 minutes away from wiping your allies.

In the meantime you have to pass this memo along, silo doors have to be opened, missiles warmed up, etc.

Today it’s much more dangerous. Nukes are hundreds, not thousands of mi. away from Moscow, so Moscow has 5 minutes head up before it’s hit. We’re unlikely to have a Petrov double guess a radar full of clouds. Any bug in the Russians radar software that looks like clouds, and poof!