The scale of Google's ad platform is mind-blowing.
Last year, revenue from ads surpassed $200 billion, from more than 1.2 million businesses worldwide.
For Google, decreasing the churn on their ad platform by even 0.1% could generate millions of dollars—creating a strong incentive to optimise.
At this scale, you'd expect Google to have an ad experience so refined that it was comparable to modern art.
Instead, it's flawed, inconsistent and a demonstration that operating at a large scale can create inefficiencies. Everybody can reduce churn somewhere.
Let's jump right in.



