system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How does Google have a searchable version of the internet that isn't the same size as the internet?

I just what how can this machine even work what is this a school for ants?
gpt
In the same way a book has a index which is much smaller then the size of the book but allows you to find which page something is on, Google has a index of Internet.

First of all the Google Search Database does contain a large portion of the text of the internet but is less concerned with the video, and pictures which is where most of the actual size comes from. 

It then creates a index of the data allowing the search engine to quickly search the internet, and then compresses the crap out of the webpage making it small and manageable enough.