Newtonian vacuum: what to call it in thought experiment

[nomadreid]

Suppose you wanted a thought experiment about a variation on the vacuum (i.e., the spatial slice of spacetime) in which the quantum effects were absent or negligible, and the vacuum energy was zero . What would you call it? You can't call it the vacuum, because this Newtonian version of the vacuum doesn't exist. Suggestions?

 

[mfb]

"Classical vacuum"?

 

[nomadreid]

That sounds good, mfb. I will see if anyone has any other suggestions (void?), but if not I will go with your suggestion.