Level: Advanced
A saturation curve models how a specific audience's response to your ads changes as cumulative spend and frequency increase, revealing the point of genuine diminishing return.
Response Doesn't Scale Linearly With Spend
Early spend against a fresh audience typically produces strong results, but the relationship flattens and eventually declines as that audience becomes saturated.
Modeling the Curve Helps Set Realistic Scaling Targets
Understanding roughly where your specific audience's curve begins to flatten prevents setting scaling targets the audience simply can't support efficiently.
Different Audiences Have Different Curve Shapes
A broad, large audience saturates more slowly than a narrow, specific one, which is worth factoring into how aggressively you scale spend against each.
Next step: Use the Sales Letter Writer to extend your effective position on the saturation curve with genuinely fresh, high-quality creative rotated in regularly, since audience fatigue and creative fatigue often compound each other.