It’s explained in the video.

I’m not going to watch the video. Lay people don’t have misconceptions about rainbows lol.

Idiot: “Everything you know about rainbows is wrong!”

Everybody: “I literally know nothing about rainbows.”

Idiot’s raving lunatics: “WAHT THE FUCK R YOU RHGHGH WATHC TEH EBNBUVIEDEO!!!”

I’m not going to entertain your sarcastic bullshit.

This is literally a shitpost community. It’s in the actual name.