Well my stepmother has a cat, and I may have been using her WiFi. But I was logged into YouTube as me, and the videos I watch would not be of interest to her so

Well my stepmother has a cat, and I may have been using her WiFi. But I was logged into YouTube as me, and the videos I watch would not be of interest to her so Google could be very confident that they were indeed advertising to me. (By the way, Google also have my location history so they can see that I never visit the pet food ailse at the supermarket). So I'm inclined to think Google is not optimising their ads. This episode has made me think Google should have a "Human vs AI" internal competition: Take a specific Google end user, and see whether a Google employee can tweak that user's ads to get a better conversion rate. If so, the employee gets a big bonus and the engineering team get to know where their ad algorithm is lacking.