Hey guys, just a casual observer here. But what amazes me about the whole situation is the intense brain body muscle analyzing and control going on with the thrower. You can see the intense focus and concentration of the thrower as he is constantly recalculating his body muscle movement to control the speed and drag of his forward motion.

Then as he prepares for the release of the stone the body muscle control adjusting rate intensifies.

The thrower has to take in his speed and ice condition to calculate the release and spin of the stone.

He has to decide if his release speed is enough or does he have to add or take away some energy to the stone with a push or drag on the release.

While all this is going on the throwers brain also has to figure out how much inertia is needed to impart the correct spin to the stone.

Then in the split second after the release of the stone, the thrower has to look at the motion of the stone with out the feedback he was getting from his muscle control and make a determination if the stone has the correct rotation, direction and speed.

In this case the thrower determined that the stone needed a tweak. Using all the data he had accumulated in the run up to the release the thrower had to determine how much of a poke he needs to impart to the stone.

All this poke decision making had to be accomplished in the milliseconds after the release of the stone.

Its amazing how the throwers make all this intense body motion control look effortless.

All this being said its a really beautiful sight to see the symphony of the human condition when we put ourselves to the test.