Looncall
Well-Known Member
Absolutely, a pebble would have the same mass whether there was anyone to place it on a balance.
There, however would be no knowledge or experience or existence of the words "mass" or "pebble" if there weren't a conscious, aware observer to name and observe, so one could never know such a thing.
No, I am not.
But the property would be there without an observer, contrary to your original assertion.