The Great Universal.Undo LE Alexander Dillahunt wasn't the world's worst typist, he was close.Hi Tommy!" Alexander called out. He smiled. Then he tapped his smartphone. If everything worked, his last comment would be Undone. exclaimed Mrs. Bieberman. Good! thought Alexander. She hadn't heard it! Flushed with excitement, he continued. He paused, waiting for a response. Tommy wailed and, still blubbering, started to play his video game. Had Alexander tapped Undo-or just imagined it? He couldn't remember. Alexander hadn't started playing video "I want a cookie!"That's how Alexander Dillahunt got it into his head to create the Universal Undo.Had Alexander tapped Undo-or just imagined it?