I believe people might be seriously underestimating just how good Magnus may be at detecting cheating. Dude probably trains with computers regularly. He has a better memory than 10 average Joe's combined. He's been the absolute #1 of the world for what, 10 years now? He wouldn't risk his whole reputation for nothing. I personally take his suspicions very seriously, though I agree that evidence has to be presented soo…
He's clearly stated he rarely ever trains with computers
Here is the first interview I could find from a 10 second google:
https://www.dw.com/en/world-chess-champion-magnus-carlsen-th...
The money quote:
" My practice at home is with the computer. When I study chess with other people, we always have a chess board. But on my own, it's always at the computer. "