This has gotten so ridiculous to the point that I actually feel bad for Neimann. He has admitted to cheating, there's no debate about that. But he maintains that he has cheated in two isolated incidents, at age 12 and 16. These are mistakes, and given he is a titled player, very serious mistakes. But, beyond barring him from chess.com (a platform with whom his chief accuser has significant business ties), they've abs…
When you said "at age 16" it made me feel the guy was 40 or so and it was long ago. Not that the cheating took place only two year before the game against Carlsen, which is close enough to keep the same behaviors..
He's 20 today, and the convroversy was last year.
It seems more like three years, in a period of one's life where a person probably does the most changing.
(FWIW, I don't play chess or have side, it's just an interesting issue.)