@tiggerbluedevil @mskathleenquinn Many of the covid restrictions just require a different number to be written on the wall (or posted up front). Same difference.
Conditions change, what is safe under some conditions isn't safe under others.
@tiggerbluedevil@mskathleenquin许多新冠病毒限制只要求在墙上写上不同的数字（或在前面张贴）。同样的区别。
条件变化，在某些条件下安全的东西在另一些条件下不安全。