Why do we tell you to turn it off and on again?
Not a single living person knows how everything in your five-year-old MacBook actually works. Why do we tell you to turn it off and on again? Because we don't have the slightest clue what's wrong with it, and it's really easy to induce coma in computers and have their built-in team of automatic doctors try to figure it out for us.
The only reason coders' computers work better than non-coders' computers is coders know computers are schizophrenic little children with auto-immune diseases and we don't beat them when they're bad.