The viewer’s computer sends a request to the server where the video is cached (to You Tube, essentially), and the video is returned.
Computers have many systems and algorithms to make sure that this isn’t happening, and in a day or so your views will rise after they have been counted and verified.
However, Not everyone watches a certain You Tube video from the same server, since videos are viewed worldwide.
To make sure that all views are validated, as view count goes higher, they update less frequently and might occasionally freeze above 300 views to assure quality view count. But very few uploaders probably make it to the Google support page explaining the process, and more most likely submit “frozen view count” questions to whatever Contact Us form or You Tube email address they can find.
You Tube has, apparently, grown tired of answering those questions.
In order to slow down the delay time between requesting the video and viewing it, videos are cached in different places.