The problem is not that he does not know everything, it is very normal to learn all the time (xkcd 1053, etc.). The issue is to be so deep into your own sentime

The problem is not that he does not know everything, it is very normal to learn all the time (xkcd 1053, etc.). The issue is to be so deep into your own sentiment of self-importance to imagine that you discovering the basic functions of a decades-old program is worth sharing with the whole world on your professional website. I'm pretty sure a lot of people woud laugh at a JS “thought leader” who would write a whole post on how he just discovered this weird number i whose square is negative and how smart he was to have found the wikipedia page about it.