In a post on LinkedIn, former KGB spy turned Fortune 500 business mentor Jack Barsky criticized the popular leadership slogan “fail fast,” calling it reckless advice when applied without context.

“‘Fail fast’ is the worst advice I keep seeing online. It is the single dumbest leadership slogan circulating in business today,” Barsky wrote.

He said the original idea of failing fast was about making small bets, learning quickly, and adjusting, but that the concept has been distorted. “Somewhere along the way, people started treating it as permission to take reckless swings with everything on the line,” he added.

Barsky recalled an example of a founder who bet their entire budget on the first version of a product. “They failed fast – and final. There was no Version 2,” he wrote, noting that failure is only useful when the downside is survivable.

The phrase “fail fast” became popular in Silicon Valley as part of the lean startup movement, where rapid experimentation was encouraged to accelerate innovation. However, critics have argued that the mantra has sometimes been misapplied in contexts where the stakes are too high.

Jack Barsky was born in East Germany and served as a deep-cover KGB officer in the United States before defecting. He later became a corporate executive and now advises leaders on business strategy and resilience.