Be honest, how much marketing is actually just guessing?

Most marketing still works like this:

1. Launch

2. Spend money

3. Hope it works

4. Try to explain the results later

We call it “data-driven”… but it’s mostly guessing.

Curious, what’s the most painful marketing experiment you’ve run that didn’t work?

(Wrong messaging? Bad targeting? Burned ad budget?)

Building something around this problem right now, would love to learn from real experiences.