He wrote down his thoughts on the cheapest paper. This kind of flexible sheet that will disappear in a hundred years is now scattered in the streets. There was no paper in that world. No, I cannot say there was no paper. This is too absolute. It should be said that there is almost no paper in our daily life. Three thousand years ago, people carved words on bamboo slips; three thousand years later, people traced words on the void. "Paperless" - this ideal has a long way to go. At first, no one cared about its existence, but the development of digitalization is accelerating its process, and the virtual world makes it more and more obvious, until the emergence of electronic paper! The paperless movement has begun! (Popular science fiction micro-documentary)
Understanding of time, understanding of things