The challenge, before the burst of internet, was to reach information we need. Anybody who is 30+ years of age today would definitely remember these days when new editions of encyclopedias ware being waited for having access to fresher information. New editions of these encyclopedias used to replace the older in the bookshelves left a pleasant smell of new print in the room. Those times, going to the libraries was an essential part of life for doing homework or research.
Today, on the contrary, the problem is the over-availability of information, (also referred to as ‘information pollution’) and the challenge is not reaching but eliminating the (useless) information to have access to what actually is being searched for.
Below is a 3-minute video how Google handles this challenge and utilizes software to search millions of pages in less than half a second to show information we are, hopefully, looking for.