Vacuum Period: the Passage Between the World and the Tower

"Sixteen years ago, the release of the deep sleep machine changed the world. From then on, everyone went to work as cows and horses during the day, and became kings in customized dreams at night. "But what's the price? As a 'black box' whose principles no one knows, the computing core of the deep sleep machine is a piece of silver coral that must operate stably in a cooling device at minus 85 degrees Celsius. The monthly electricity bill is ridiculously high. "Where on earth did they find this substance? What would be the consequences if the cooling unit was damaged? "There are endless anecdotes about deep sleep machines, and it is said that there is also a group of mysterious people who take the initiative to cover up and contaminate information sources. " "That's their after-sales staff. "