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So the first term I searched was "cognitive". Search for it yourself, and click the first result.

Go back and click "cached".

That was a cool experience.

I wonder how cached results are created and is there some kind of copyright violation because they store the content.

I suspect it might be something mentioned in https://github.com/masukomi/arc90-readability. I believe it's what powers "readability" view in modern browsers (firefox https://github.com/mozilla/readability, safari).