Team,
Jim Kwik was called “the boy with the broken brain” by a teacher, out loud, when he was nine. A brain injury at five left him years behind. He’s now the brain coach Hollywood actors and CEOs hire to think faster. So when he talks about what a brain can rebuild, I listen.
We met to talk about AI. But the thing I keep coming back to is simpler, and it’s the most useful way to think about your brain I’ve heard in a long time.
He calls cognitive reserve a savings account.
It’s real neuroscience, and it’s why two people can have the same Alzheimer’s pathology in their brains while one loses their memory and the other stays sharp at 90. The reserve is the buffer. You spend a lifetime building the balance, and it’s what protects you when things start to go wrong underneath.
Every day, you either make a deposit or take a withdrawal.
The withdrawals are the ones you already suspect: bad sleep, chronic stress, sitting all day, processed food. But Jim named a new one. Every time you let a machine do your thinking, that’s a withdrawal. He pointed to an MIT study where people wrote essays with ChatGPT, with Google, or with just their heads. The AI group had the least brain engagement and barely remembered what they’d written. His line: you don’t go to the gym and have someone lift the weights for you. But that’s what we’re doing with our minds all day.
The deposits are small, free, and completely in your hands. This is the part your evening is made of:
Read the actual book, not the AI summary.
Do the tip math in your head. Kill the calculator for small stuff.
Sit in a boring moment instead of grabbing your phone. Jim’s point: boredom is where your best thinking happens, and we’ve deleted it.
Learn something slightly too hard. If it’s easy, you’re not getting stronger, in the gym or the mind.
Have the real conversation. Social connection is one of the biggest deposits there is.
None of that costs money or needs a supplement. It just needs you to keep doing your own thinking, on purpose, while the world builds very convenient machines to do it for you.
Jim’s image for it: getting through your day is like being on a plane. You can be the passenger, thrown around by everything that hits you, or you can move into the cockpit and fly it. Cognitive reserve is just you, every day, choosing to stay the pilot.
There’s a lot more in this one, including how he rebuilt a brain everyone wrote off. Full episode out now.
Listen on YouTube, Apple, and Spotify.
TOPICS DISCUSSED
00:00 Are We Raising the Dumbest Generation Because of AI?
01:06 What Happens When Technology Thinks for Us?
02:03 The ChatGPT Study: What Happened to Memory and Recall
03:00 Cognitive Offloading vs Cognitive Surrender
05:01 Brain Rot, Doomscrolling, and the Attention Crisis
08:19 Why Reading Is Training for Your Brain
09:30 Neuroplasticity and the London Taxi Driver Study
12:20 “Natural Intelligence Is Becoming Artificial”
13:06 Why Asking Good Questions Matters More Than Ever
16:50 How Weak Critical Thinking Makes You Easier to Manipulate
19:31 Cognitive Reserve: Your Brain’s Savings Account
22:52 Cognitive Antifragility: Why the Brain Needs Challenge
25:34 How to Stay Human in the Age of AI
29:15 Metacognition: Thinking About Your Thinking
34:46 Why High Performers Protect Their Attention
40:46 Jim Kwik’s Childhood Brain Injury
45:27 Five Years of Severe Sleep Apnea
49:48 What You Do First Thing in the Morning Matters
52:47 Jim’s 3 + 3 Morning Exercise
54:00 “Mind Before Media”
57:22 Where AI Is Going Next
58:31 Artificial Intelligence vs Augmented Intelligence
60:19 The AI Risk Nobody Talks About: Losing Purpose
62:15 Be the Pilot of Your Brain, Not the Passenger
