Its possible that with AI and big data, that banner ads could soon perform better than search ads. my only concern is “privacy” advocates that have attacked the remarketing technique. all remarketing does is give a business the ability to “tag” a person and be able to serve banner ads to them. AI and big data do a lot more. it gives you the ability to track which websites a person has gone on to figure out if theyre a good match to serve banner ads too. im not sure if the public is going to be cool with that.