[ubernostrum]

Caruana's been under time pressure over and over and over in this match, and blundered his way into zero losses as a result.

Time pressure is practically where he lives, because of how much time he spends calculating. The idea that he's suddenly going to completely forget how to play when the clock is running low doesn't hold water. Especially when he wasn't facing any immediate threat on the board; the advantage for Black was there, but it was theoretical/positional, and was going to take significant work to convert into a result, or even into lines that would make Caruana have to sweat through the next series of moves. And the engine games keep showing that all of Black's advantage can be thrown away with one or two inaccurate moves even very soon after the draw occurred; Carlsen's well within his rights to decide not to risk that just to try to toy with his opponent.