Scale of the universe
Isn’t it the same thing with the amount of data in search engines?
In 2014, Tim Berners-Lee posted this tweet and the number of web site : https://twitter.com/timberners_lee/status/511988109211627520
Now we probably reached 580,000,000 unique host name and you can have a glimspe at the evaluation online at http://www.internetlivestats.com/total-number-of-websites/
And this probably doesn’t take into account the deep web or dark net!!!