That’s an excellent question, one which I myself was idly pondering whilst driving my lawn tractor in circles in our front yard one day.
And I wrote a short story to explain that and other things. It was published in August, 2020.

Ramblings of an old man with pretentions of authordom
That’s an excellent question, one which I myself was idly pondering whilst driving my lawn tractor in circles in our front yard one day.
And I wrote a short story to explain that and other things. It was published in August, 2020.