Where did they get this idea that the universe is purely mechanical and material?? NOT from science...

Let's imagine that there exist two universes, M and E. Universe M is purely material. Universe E contains etherial things in addition to material ones. However, the material things that E contains are exactly identical to the material things that M contains, down to each individual quark or cosmic string or whatever everything material is made of. The material objects in two universes are perfectly synchronized; for example, whenever a drop of water falls into a pond in universe M, and identical drop falls into an identical pond in E, etc.

If you were accidentally transported into one of these universes, is there any way you could tell which of them you ended up in ?