[bert]

The answer is not archeology but rather mineralogy. The spheres are bubbles that floated up through the prophylite

[djf]

Thanks.

So you say.

My point, IIRC, is that they are either natural or they are manufactured. If they are manufactured, then obviously, it’s not by humans.

But all the talk about ancient ruins leaves me with one question. People continually say “There will be nothing left in 10,000 (or however many) years from now...”

I call BS on that one. There is one thing that simply would not decay or erode.

And it is one of the first technologies that humans (presumably others also) would have.

Ceramics.

Coffee cups.
Toilet seats.
Computer chips.
Stuff like that.

If man was destroyed, there would be plenty of evidence left for millions upon millions of years.

They might not have any of our writing left.
But they would know how big our asses are!

;-)