John Smith I wrote:
I am saying:

Yes, I believe someone would search for "solid ground" to base
measurements on. Again, yes, I believe that is about the best we can
find in an un-perfect world ...

No, I don't think that is any better than basing it on my goldfish, and
he/she is unpredictable (quantum effects perhaps.) But still, if all
which availed itself to me were my goldfish--I'd be damn temped to start
basing measurements on his/her activity!

At least your argument(s) cause one to think ...

You might look into finding a way for that activity to occur
spontaneously as well.

ac6xg