Except, we now know he wasn’t. Carlsen was salty because his ego was bruised by losing to someone he perceived as being beneath him. He wasn’t seeing any 4d chess BS romantic mental projection of the game. He was just mad that he lost. Be aware, it wasn’t that Niemann was unfairly landsliding Carlsen. Quite the opposite, Carlsen had already won two games against Niemann. When he lost the third game he got mad that someone else studied the same obscure opening as him and resigned on the fourth game after a single move. Just an adult tantrum. This is chess, everyone loses at some point or another, no matter how good you are or how large the skill gap with your opponent. Statistically in a large enough amount of games, you will lose some.