Talk:Quantum Foam Manipulation/@comment-4867780-20170820211518/@comment-24053170-20170821004240

Technically speaking, anything on a level smaller then the sub-atomic is considered to be non-physical, as we have no way of interacting with it or understanding it.

Non-physical relates to anything beyond our ability to experience or interact with, we can't interact with the quantum foam anymore then we can interact with any of the other quantum level anomalies that make up our universe.

Dark Matter may be a real scientific theory, but its totally non-physical because there is no way for us to interact with it our understand it.

A lot of the things scientists study don't have any form of context we can truly hope to understand at our present level of knowledge or technology.