The saturation point

Every channel has a point where the next dollar stops working. Most media plans never find it — so they keep spending right past it.

Reach is not linear

The first impressions a campaign buys are the most valuable. Each one after that is a little more likely to land on someone already reached, or someone less likely to respond. Plotted out, response bends — steep at first, then flattening toward a ceiling. Economists call it diminishing returns. We model it as a calibrated response curve, one per channel.

Why the knee is invisible

Without a curve, you can't see where the bend begins. Delivery dashboards report impressions and GRPs bought — never the outcome they've stopped producing. So the saturation point hides in plain sight, and budget quietly pools above it: real money, buying reach that no longer moves equity, penetration, or sales.

Budget is rarely wasted on the wrong channel. It's wasted past the right point on the right one.

Planning to the curve, not the cap

Curvio fits a response curve to every channel, calibrated on your own campaign history. The plan then allocates to where each marginal dollar still moves the outcome — and stops where it doesn't. The result isn't a bigger budget. It's the same budget, landing before the knee instead of past it. That difference, compounded across a mix, is where the return comes from.