Let's do an experiment: stand in front of a mirror and stare at your left eye, then at your right eye, then at your left eye. You will find that the time you move the eyeball seems to be "deleted": when you move the eyeball, you do not feel that time is interrupted.
Stanford neuroscientist David Eagleman said that the brain's perception of time is often distorted.
For example, when we experience dangerous moments like car accidents, robberies, and falling from the roof, we feel that "time slows down."
Igman concluded that time and memory are intimately linked. In a critical situation, the amygdala in the brain will run at high speed, controlling the resources of the rest of the brain and forcing all resources to deal with the current situation. So in a terrible situation, your brain might store it in a way that makes it more "solid." When memory is replayed, the denser the data, the longer the duration of the event is considered.
This is probably why time seems to accelerate as you get older: you are too familiar with the world to absorb all the information of the world as you did in your childhood, and your memories are poor and low-data. And when I was a child, everything was novel, and the rich memory stretched time. That's why we feel that a summer vacation in childhood was so long.
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On the question of "time perception", another professor of mechanical engineering named Adrian Begian studied it, who explained it from more angles, click to read: icon Why do I feel that time passes faster as I get older? It turns out that there is a physical basis for this.