A pixel is nothing more then ROYGB light on a square, each color divided by 1/3 of a vertical part of the square.2/3 of the first 1/3 is R, the other 1/3 of te first 1/3 is O. The next 1/3 of the ¹1/3 is also O with 2/3 Y and the sequence goes on... A pixel is nothing more then an ilusion

. Yes, it's true, if we saw everything more perfect like an hawk for exemple we woudn't see pixels, we would only see color shifts, and those shifts create a single color on a pixel. Its an opaque vision of those colors. Exemple: White is the maximum of RGB (255,255,255), and black the minimum of RGB (000,000,000). A pixel could be any shape that can be divided by 1/6 shared by a single center. They should be at minimum 3 sides simmetry and maximumof 6, if we had something like 18 sides it wwould give an illusion of bending on the image.
There is no reason to explain what a pixel is, or maybe because you wan't to show off your high-capability on thinking. Go do something like a robot, don't waste your time with inane conversations such as this one.
If somedoby is saying idiot things just ignore, don't waste your time.
BTW, before doing a video try voiceacting. It's uncool to speak slow/fast even tough it's yourself. I tend to speak faster then I should but I just try to calm down. It look's like you are thinking on the answers for your own questions in the moment you are taping the video.