Google has been showing Ads for 20+ years. Did they _just now_ discover that users will tolerate more ads? BTW: it's very hard running a long-term study about

Google has been showing Ads for 20+ years. Did they _just now_ discover that users will tolerate more ads? BTW: it's very hard running a long-term study about the ad load. It is too noisy. And you can read whatever you want to read in such studies.