31. He walked into the drugstore. Where are the eyedrops, he wondered. He looked at the drugstore signs. Signs were hanging above each aisle. He read sign after sign. He finally saw the eyedrops sign. He walked to the eyedrops section. He looked on the top shelf. He looked on the middle shelf. He looked on the bottom shelf. Where were the eyedrops? Was he in the right aisle? He looked at the sign again. Yes, he was. He finally found the eyedrops. He went to the front of the drugstore. He stood in line to pay. Someday, he thought, shopping will be faster. Someday, he thought, I will walk into any store. I will say, "Finder, where's the Crest toothpaste?" A blinking light, the size of a 60‐watt bulb, will appear. I will follow the light directly to the Crest toothpaste section. I'll say thank you, and the Finder will disappear. 2.8