Bad Time for the Clock to Stop

[Rob1968]

Originally Posted by Coach Bill

No, I can see the digits quickly scrolling by.... Signals from the eye take about a tenth of a second to reach the brain. The blink of an eye is approximately two tenths of a second. When I go from looking away at my running timer on my phone and then glance at it, I can pinpoint it to a small range (maybe within .3 seconds), but I can't tell you exactly to the tenth of a second. The official has to see that the ball is at the disposal of the inbounder, glance at the running clock, and start the count. To say for certain it was exactly at 5.3 is not humanly possible. If his brain registers 5.3, then it was at least 5.4. That's the only point I'm trying to make. I would still ask the table when they stopped the clock, and not immediately go to 0.3.

(from Wikipedia)
The human eye and its brain interface, the human visual system, can process 10 to 12 separate images per second, perceiving them individually.

[1] The threshold of human visual perception varies depending on what is being measured. When looking at a lighted display, people begin to notice a brief interruption of darkness if it is about 16 milliseconds or longer.

[2] Observers can recall one specific image in an unbroken series of different images, each of which lasts as little as 13 milliseconds.

Coach, it seems the ascertion regarding 10-12 visual images processed per second by a human brain, is modified by element [2], which explains why/how it is possible to perceive the presentation of individual tenths on the clock.