Time point is also called a blind spot of time and space. That blind spot is static. Any matter moves due to the movement of time, and objects in the blind spot, that is, the time point, will not change.
In a static state, the so-called space-time tunnel probably refers to this. A time point is a moment in time, or a point on the timeline, as time interval Start and end points of. The so-called space-time tunnel probably refers to the time point. There is no regression in time, only acceleration or stop at a time point, and people or aircraft disappeared before, which means that objects have entered the time point by mistake, and the time of the world moves normally. The time at the time point causes the object to remain stationary because it is still. After a period of time, the object will return to the state just before entering the time point by mistake. This is the time point.