I do use my microwave at the same times each day, ritualistically. :^)
As do I!
I imagine future archeologists finding them, however, with no method of power (or even a cord) and nothing to rotate the plate. Perhaps they will place razor blades inside: to see if they stay sharper, or fruit: to see if it stays more fresh.
It amazes me that the human mind has obtained the same moments of brilliance throughout its history and likely before it.