Re: "so a majority of people do change search engines"
Or, more accurately:
Barman: "Hi mate, you want another Stella*?"
Me: "Uh, I've never ordered Stella in here..."
Barman: "No, but I followed you around the supermarket for the last three weeks and noted down what you bought."
Me: "Wow, that's....really creepy. I'm going to another pub now."
It's less about Google remembering what you've searched before and more about it tracking you across half the internet and several different devices. Generally, that's what anticompetitive business practices are about, abusing dominance in one market to give yourself an unfair advantage in another.
(* chosen purely as an example and should not be taken as an endorsement or reflection of personal taste. I actually don't drink beer in any form :) )
Biting the hand that feeds IT
