Eight-year-old Josh sat in his living room excitedly opening his birthday presents. He had already received some new toys from his grandparents, but his parents told him that their present was extra special. He’d be able to use it to light up whatever he wanted, to make unique shapes on the walls, and to play games in the backyard. As he took his brand-new flashlight out of the box, he excitedly flicked the switch to turn it on. Nothing happened. He flicked the switch off and back on, and again nothing happened. He pointed it around the room, then ran outside to the backyard and pointed it around out there, as well. It must be broken, he thought sadly, as he trudged back into the house and dejectedly ate his birthday cake.