A couple of weeks ago, I spoke with a founder who was genuinely confused.
They'd just had their best revenue week ever. New offer, solid creative, everything clicked. The team was celebrating.
Two weeks later? Revenue dropped 40%. CAC jumped. The "winning" creative stopped working. And suddenly they were scrambling to figure out what happened.
Their first instinct: "Meta's being weird again."
But here's what was actually true …
That spike didn't prove they had Product-Market Fit. It proved people were willing to click "buy" under very specific conditions.
And when those conditions changed (the novelty wore off, the urgency faded, the initial audience was tapped), the sales disappeared.
Here's the thing most founders get wrong:
A sale is just an event. It's a single data point that tells you someone was willing … in that moment, under those conditions … to exchange money for your product.
That's useful information.
But it's not proof of fit.
Because that purchase might have been caused by anything except underlying demand:
A discount they couldn't resist
A creator they trust
Novelty (they wanted to try something new)
A viral moment
Luck
Product-Market Fit isn't "we made money." It's when the same kind of customer keeps buying for the same reason with the same expectations … repeatedly.
If the revenue shows up but the behavior doesn't repeat, you don't have PMF. You have movement.
And movement feels like progress until you try to scale it.
Why this matters right now:
Because if you're building your growth plan on top of a spike … if you're scaling ad spend, expanding your team, adding inventory … based on one great week or month ...
You're about to learn an expensive lesson.
The market doesn't care about your best week. It cares about what repeats.
Tomorrow I'm going to walk you through the exact signals that separate "someone clicked buy" from "we have real, scalable demand."
Because once you know what to look for, you'll stop celebrating the wrong wins.
Reply and tell me: What's the last "win" you celebrated that didn't actually repeat the way you expected?
See you tomorrow,
Jeremiah
P.S. … If you're thinking "but we DO have consistent sales," stay tuned. Tomorrow I'll show you the difference between consistent revenue and consistent demand. They're not the same thing.
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