GOOGLE in A min BUT WHY? or HOW?

I have always wondered how amazing it is that google can give you answers just like that with just a click of a button. Developed in the 1990s today it is the most renown source of well.... anything from books to the latest fashion trends or even a quick how to of the tastiest apple crumble. However I've always seemed to wonder its reason to being so.

By the use of a artificial intelligence that scans wording given and showing your possible results. Sounds simple enough

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