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The Next Big Idea · 2026-05-11 · 77 min · 12,594 words

You Can Grow Your Brain. Here’s How.

Listen to the original audio · Transcribed with NVIDIA Parakeet · Why times can differ in your player

I'm Rufus Griscomb, and this is the next big idea. Today, how to grow your brain. I've been aware for a long time that I could, if I really wanted to, get in sick shape. With an hour or two of daily training after a few months, I could probably run a marathon. I could play five sets of competitive tennis.

I could, with sufficient maniacal discipline, developed such explosive grip strength that I could crush raw potatoes with my bare hands at cocktail parties. I've never done any of these things before. I've never even run a half marathon. I've never crushed a cooked potato, but I understand that my body is trainable.

Repeatedly stressing muscles makes them larger. We know this. With the right nutrients and disciplined regime, my body could do things that would amaze me. My brain, on the other hand, I've always assumed that its capacities are gated by genetics. I'm pretty good at math, I'm pretty good with people, but I'm atrocious at remembering names.

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