Here’s what we know about Google’s mysterious search engine
The Washington Post - 08/29/2018
If the results differ from person to person, that could be because they may be using a browser in incognito mode, which deletes the cookies and other third-party tracking software. Or they may be searching from a different location, triggering Google’s reflex to return local results. Or they may simply be performing a search slightly later in time than another, said Christo Wilson, a computer science professor at Northeastern University who has studied Google’s search practices for 6 years.