Brain Rot and AI: The Psychology of Thinking vs. Deferring

In this replayed conversation from The Diary of a CEO, neuroscientist and child psychiatrist Dr. Daniel Amen (identified in the full episode) and host Steven Bartlett examine what happens to the brain when people offload their thinking to AI tools. The core tension is straightforward: AI can either amplify cognition or atrophy it, depending entirely on how you interact with it. The episode's most striking data point comes from an MIT study showing that people who used ChatGPT to write an essay had nearly two times less activity in brain regions linked to memory, and 83% couldn't remember what they'd just written minutes later.

Why the Brain Defaults to the Easy Path

The conversation frames AI misuse as a predictable failure of short-term incentives. Dr. Amen points out that humans consistently choose immediate rewards over long-term benefits, even when they know better—the obesity epidemic being a parallel example. "I think that we're much more driven by our short term," he says. The problem is that people don't connect the abstract idea of "bad for your brain" to concrete consequences: "It's my brain that gets me a date. It's my brain that gets me into college. It's my brain that gets me independence."