I received the time-space cross message. Can I fly?

You can't. Family members of space-time partners can travel, but after receiving the text message, family members also need to carry out nucleic acid testing, go to crowded places as little as possible before the results come out, and at the same time need to carry out their own health monitoring. In addition, on the premise of personal protection, simply travel (avoid taking public transport and going to crowded places). You can't fly when you receive the time-space intersection information. "Time-space crossing" means that the mobile phone number and the mobile phone number of COVID-19 positive cases stay in the same signal grid (usually 800 m× 800 m) for more than a certain time. As long as there is an intersection with the trajectory of positive cases, whether it is a physical pass or a cell phone signal from the same communication base station, it is considered as "intersection of time and space".