We have renormalization and the collapse of the wavefunction: both operations imposed by our knowledge (experimental evidence), hence non-mathematical. 

11 minutes ago, Willem F Esterhuyse said:

We have renormalization and the collapse of the wavefunction: both operations imposed by our knowledge (experimental evidence), hence non-mathematical. 

Well of course. It's science, you see.  

4 hours ago, Willem F Esterhuyse said:

We have renormalization and the collapse of the wavefunction: both operations imposed by our knowledge (experimental evidence), hence non-mathematical. 

!

Moderator Note

This is a discussion board for science, not semantics. This would be a discussion of whether “non-mathematical” means absence of math, or having elements that are not mathematical.

Surely one can introduce a topic that is less trivial.