You blink for about 0.3 seconds. In that instant, how far has light traveled?
Light travels at exactly 299,792,458 meters per second. That's fast enough to circle the Earth 7.5 times in one second. In the time it takes you to blink, light has already crossed distances that feel absurd.
Next time you blink, remember: while your eyes were closed, light raced past the Moon, bounced off your wall, and was already somewhere else entirely.