One of your blinks usually last 100 to 150 milliseconds and you can blink up to 5 times a second. So, in the time that you are awake, the average viewing time you miss blinking is up to several hours. And there is a lot of stuff going on while you have your eyes closed.
from BrightSide RSS https://brightside.me/wonder-curiosities/18-blink-and-youll-miss-it-pictures-628160/
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