In a conveyor belt, each cog wonders what was there before the previous cog. And all cogs are wondering the same. What was there before the very first cog was there!?
Dont try it. This is a product of an idle mind trying to keep itself busy.
https://www.truthorfiction.com/hotel-cleaner-who-stole-sperm-from-a-millionaires-used-condom-won-child-support-battle-millions/