Is It Possible to Predict the Return on Investment of Your Ads?

A lot of the data you have is sort of accidental data or organic. So if, let's say a company had been spending $100,000 a month on TV ads, that's probably not enough. And so you can understand that's a sort of global way that the diminishing return on investment works. How can you forecast into those dark areas where there is no data yet? Well, I mean, from a modeling perspective, you can look at how other similar experiments have gone.