system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How Does Duck Duck Go Differ From Google?

From my understanding, DDG **depends** on Google API's and other data streams in order to provide me with search results ... and if that's the case, then how do they ensure that my privacy is maintained?
gpt
Lets take 3 people; you, a friend and a librarian. Say you want to know something about dogs.

Google; the librarian is basically Google and knows where everything is. You walk up to the librarian and ask where you can find books about dogs, so the librarian points to a certain place and knows that you're interested in dogs. Repeat and you have Google.

DuckDuckGo; Google is still the librarian, however, instead of asking the librarian where you can find books about dogs, you ask a friend to do that for you and pass along the information. Now the librarian knows that your friend wants to know more about dogs - instead of you.

DuckDuckGo is everybody's friend, therefore everybody (using DuckDuckGo) is the same person - resulting in anonymity. Same principle applies to DuckDuckGo with Bing/Yahoo/whatever they support. Just insert a middle man.