Twitching like a finger on the trigger of a gun

Stanislav Petrov saved the world on Sept. 25, 1983. To quote one commenter from the post where I learned about him, “Here's the thing about his act; he may or may not have saved the better part of a billion people, but at that time and on that spot his best guess was that he might have that power or the power to slow the slide down the slippery slope, if not stop it. He did, with consequences I'm sure he had some foreknowledge of. That's heroism.”