The joy of losing consists in this: Where there are no expectations, there is no disappointment. - Charles Krauthammer

Late in the game, Blue's king was under savage attack by Kasparov. Any human player under such assault by a world champion would be staring at his own king trying to figure out how to get away. Instead, Blue ignored the threat and quite nonchalantly went hunting for lowly pawns at the other end of the board. In fact, at the point of maximum peril, Blue expended two moves--many have died giving Kasparov even one--to snap one pawn. It was as if, at Gettysburg, General Meade had sent his soldiers out for a bit of apple picking moments before Pickett's charge because he had calculated that they could get back to their positions with a half-second to spare.

When under attack, no country is obligated to collect permission slips from allies to strike back.

Science has everything to say about what is possible. Science has nothing to say about what is permissible.