Two spectators each select a card which they hold on to. The deck is cut in half and placed face-to-face. The deck is then temporarily placed into the "Chaos Machine" (otherwise known as the card case).
 
The "Chaos Button" is pressed... and the deck is immediately removed and spread to show that all cards are now interlaced face up and face down in a truly chaotic state.
The deck is once again placed into the "Chaos Machine" and this time the "Order Button" is pressed. The deck is cleanly tipped out of the case and spread to show that every single card is face-up except for two - the selected cards!