And whether he liked it or not – because it was his job, after all – he had to stamp them, or rather, use a small chisel to delicately carve the postmark right over the stamp (which was also made of stone, since, as we know, paper didn’t exist yet). He had to carve it with such precision that the postmark – showing the date and the mail center’s number – was clearly legible…

…which reminds me: since Stone Age people all died out more or less at the same time, they must have organized it somehow to make sure the whole extinction thing actually worked out. And since there were no telephones or internet back then, they probably sent each other postcards with a message something like this:

That “organized coordination” for a collective extinction must have gone something like that – after all, Stone Age people are all gone now.

All I can say is: hats off to you, Mr. Postmaster - good work!

…which reminds me: since there was no paper in the Stone Age, using the toilet must have been terrible. Imagine trying to tear a piece off a roll of Stone Age toilet paper – which was made entirely of stone – or actually getting clean with it. And just buying those rolls of Stone Age toilet paper – all made of stone – at the supermarket checkout back then… you’d give yourself a hernia just lifting a bulk pack of them.

Fortunately, the Internet exists nowadays, so problems like that don’t really exist anymore.