Reality is that which we can most agree on and that, whether empirically or logically, rests in turn on replication - does the same input always result in the same results? The act of measurement is the act of Creating reality in one sense, because it establishes that which can be verified. Any concept must be defined into being before it can be empirically measured, if it is in fact the kind of thing that can be empirically measured. Some concepts, like god or consciousness do not, at least currently admit of sufficient enough description to measure. Consciousness at least we can describe in relation to our own experience which we presumably share. If god is the kind of thing that cannot be measured, it cannot be "known" with any definition of knowledge, because it cannot be verified. If it can be measured, then we can say exactly how it can be measured and know exactly what would be needed to do so. Unverifiable things are literally indistinguishable from fiction. They can only become "real" when they are Actually verified by replicable measurement; for all intents and purposes.
...and "internal knowledge" can only be good for internal purposes, n'est-ce pas?