"Is this the next big thing?" is a phrase often touted when an intriguing new technology is introduced. Out of curiosity as well as investment purposes, people want to know if something is going to have a major impact on the world. Personal computers, MP3 music players, smartphones and tablets are examples of past products that have revolutionized the way people work and play. Today, many think 3D printers are the next big thing. See buzzword and 3D printing.