This question of mine was closed on the basis that I'm asking the same question... I'm not. I specifically ask the "Why
apt-get install update fails" (which normally people try to update their systems) meanwhile the other question address how to solve the issue where the package is simply misspelled or not available.... I'm not trying to solve anything! That questions are "related" doesn't mean that are the same! In 3 months it gathered 3k views so explaining the why to the whole population of internet denizen is more useful that blindly trying to solve a problem they don't have.
apt-get install update is a silly mistake most people do and the only solution is explain that
install expects a
package and since there's isn't a package called "update" it fails and how to do the action they meant to do:
sudo apt-get update,
sudo apt-get upgrade or
sudo apt-get install package, the duplicated doesn't address the question in the way I phrased it.
The answer I offered is the proof that both questions are addressing an specific issue.