My theory is that they had no practical purpose, they were just a trendy knickknack that eventually fell out of fashion. A Roman equivalent of a fidget spinner or something.
In a few thousand years whatever has become of humanity will be digging up fidget spinners and wondering about them in the same way we do with dodecahedrons. It’s not as if anyone will have been preserving fidget spinner media for millennia to explain them.
My theory is that they had no practical purpose, they were just a trendy knickknack that eventually fell out of fashion. A Roman equivalent of a fidget spinner or something.
In a few thousand years whatever has become of humanity will be digging up fidget spinners and wondering about them in the same way we do with dodecahedrons. It’s not as if anyone will have been preserving fidget spinner media for millennia to explain them.