Kramnik's Blunder Reconsidered

There is some excellent discussion of Kramnik's "blunder of the century" (mentioned in my post of the other day) at the ChessBase site (see "Blunders in chess - Kramnik wasn't the first" --also "How could Kramnik have overlooked mate?") and at Doggers-schaak ("The blunders of Kramnik, Petrosian and Reshevsky"). It is a hot topic all over the net, of course. Even Howard Stern has had something to say about it. Such an interesting example of a "blind spot" probably reveals a lot about the sort of pattern recognition that is at the heart of chess expertise. I see a ready-made psychology research study in this....