科学技术需要严谨客观的研究、求证和实践，也需要大胆而又丰富的想象和预测。历史上，曾经有许多人对未来科技的发展进行过预测，有一些预测很准确，而有一些却是十分地荒唐可笑。 1899年，当时的美国专利局局长多威尔以“任何一项发明都已走到尽头，都已寿终正寝”为 Science and technology require rigorous and objective research, verification, and practice. It also requires bold and rich imagination and prediction. In history, there were many people who had made predictions about the future development of science and technology. Some predictions were accurate, while others were extremely ridiculous. In 1899, the then U.S. Patent Bureau Director Dowell said that “any invention has come to an end and all of them have died.”