How Are Search Engines So Fast?

The video discusses the frustration of searching for files on a computer compared to the speed of Google's search engine. It explains that Google's speed is due to its algorithm and indexing, which pre-crawls the web to create an index, allowing for quick retrieval of search results. In contrast, home computers often lack such indexing, leading to slower searches. The video concludes with a call to support SciShow on Patreon.

Discuss the reasons why some personal computers do not create an index for file searches.

How does the process of searching through files without an index affect the speed of a computer's search?