"The old show_ads did lots of work: loading additional scripts, gathering information about the web page it was running on, and building the ad request to send

"The old show_ads did lots of work: loading additional scripts, gathering information about the web page it was running on, and building the ad request to send back to Google." Tracking users and crushing privacy. Sucking down clock cycles all over the world. You didn't think you got that for free, did you?