Jun 4, 2026 · 21 min · 10 segments
Why does the thing you’ve been looking forward to for weeks feel… meh? Why does a random compliment stick with you longer than a planned celebration? The answer isn’t that you’re hard to please. It’s…
Dopamine has nothing to do with pleasure.
It's a prediction error signal.
Here's what that actually means.
Yeah.
So we really need to, um, we need to strip away this pervasive cultural myth that dopamine is just your brain's, you know, pleasure juice.
Right.
Because the pop science narrative has spent, what, 20 years telling us that?
Exactly.
We're told that when you achieve something great, your brain just hands you a little packet of dopamine as a reward.
You eat the cake, you get a hit of joy.
But, I mean, when you actually look at the neurological data Schultz gathered at the University of Cambridge, that entire narrative completely falls apart.
It really does, and the mechanics of his experiment were just so incredibly stripped down, which is, I think, what makes the findings so undeniable.
Right.
There's no room for interpretation.
Yeah.
So you have a monkey in a room, a light flashes on the wall, a few seconds go by, and then a drop of sweet juice falls onto the monkey's tongue.
Meanwhile, Schultz is monitoring the exact millisecond, and I mean the exact millisecond, the monkey's dopamine neurons fire.
And on day one, the results look perfectly normal.
Perfectly normal.
The light flashes, the monkey is, you know, a bit confused.
The juice arrives, and boom, a massive spike of dopamine.
The reward is delivered, and the brain lights up.
But, and this is the crucial part, if the trial had stopped on day one, that pleasure myth would have survived, but Schultz kept running it.
He just kept repeating it.
Yeah.
Dopamine has nothing to do with pleasure.
It's a prediction error signal.
Here's what that actually means.
Yeah.
So we really need to, um, we need to strip away this pervasive cultural myth that dopamine is just your brain's, you know, pleasure juice.
Right.
Because the pop science narrative has spent, what, 20 years telling us that?
Exactly.
We're told that when you achieve something great, your brain just hands you a little packet of dopamine as a reward.
You eat the cake, you get a hit of joy.
But, I mean, when you actually look at the neurological data Schultz gathered at the University of Cambridge, that entire narrative completely falls apart.
It really does, and the mechanics of his experiment were just so incredibly stripped down, which is, I think, what makes the findings so undeniable.
Right.
There's no room for interpretation.
Yeah.
So you have a monkey in a room, a light flashes on the wall, a few seconds go by, and then a drop of sweet juice falls onto the monkey's tongue.
Meanwhile, Schultz is monitoring the exact millisecond, and I mean the exact millisecond, the monkey's dopamine neurons fire.
And on day one, the results look perfectly normal.
Perfectly normal.
The light flashes, the monkey is, you know, a bit confused.
The juice arrives, and boom, a massive spike of dopamine.
The reward is delivered, and the brain lights up.
But, and this is the crucial part, if the trial had stopped on day one, that pleasure myth would have survived, but Schultz kept running it.
He just kept repeating it.
Yeah.
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