I remember Caruana mentioning how he wasn't prepared for how much Carlsen "understood" him (not exact words from the video, but something to that effect). It s

I remember Caruana mentioning how he wasn't prepared for how much Carlsen "understood" him (not exact words from the video, but something to that effect). It sounded sort of like a side mind game that Carlsen plays on his opponents. It made it clear that Carlsen really studies his opponents and not just their past games.