Now that the simmering/resting time is settled, why would you rinse them under cold water for 23 seconds? What happens at 30? Someone should do an experiment!
Well I chose 23 seconds as some years back I became aware humans functioned best when they had a specific target in mind.
To some a short time is 11 seconds while to others it may be 30 seconds.
Imagine a bloke who had 'Attention Deficit Hyperactivity Disorder' or even 'Social Anxiety Disorder' and did not cool the egg for 23 seconds?
What would be the likely result besides burned fingers?
My guess is an increased level of his 'Road Rage Disorder' while driving to work.