Animal Magnetism and the Lost Art of List Building

People queued for hours. They fainted in his salons. They paid enormous sums for the privilege of standing near him. A royal commission — with Benjamin Franklin on the panel — eventually concluded there was no physical fluid at work. What Mesmer had actually discovered, without naming it correctly, was the raw force of expectation, attention, and belief concentrated in one room.

Every list builder is running a smaller, quieter version of the same experiment.

Most people building an email list think their job is information transfer. Send the tip, deliver the value, repeat. That’s necessary but it isn’t sufficient, and it’s why so many lists go quiet the way mine did. Information alone doesn’t hold anyone’s attention past the first unsubscribe-friction moment. What held Mesmer’s rooms full wasn’t the theory of magnetic fluid — it was the experience of being in his presence. The anticipation before he entered. The sense that something was about to happen to you personally, not just information you’d receive passively.

Translate that forward two hundred and fifty years. A list that survives is one where the subscriber feels a low hum of anticipation before they even open the email — not because you’ve promised a discount, but because your presence in their inbox has some charge to it. That charge comes from specificity of voice, not proximity to trend. Mesmer didn’t dilute his method to appeal to everyone in Paris. He sharpened it until the people who resonated became evangelists, and the people who didn’t simply went elsewhere.

There’s a practical lesson buried in the debunking, too. The royal commission proved there was no fluid — and Mesmer’s practice collapsed almost overnight once the mechanism was exposed. That’s the risk of building an audience purely on unexplained charisma: it’s fragile the moment someone looks behind the curtain. The list builders who last aren’t the ones hiding the mechanism. They’re the ones who show you exactly how the trick works and you still want to watch them do it, because the craft itself is the draw.

So the actual work isn’t “build a list.” It’s: give people a specific, repeatable reason to feel something before they’ve read a word, and make sure what’s behind the curtain holds up once they look. Magnetism isn’t a personality trait you either have or don’t. It’s a set of decisions about specificity, cadence, and honesty that you can make on purpose.

Mesmer never admitted the fluid wasn’t real. That’s where his method and mine part ways — I’d rather you know exactly what you’re subscribing to.