Perhaps we could use the good ole principle: physical fact != cultural truth value? Not in the real world, that is. We might try to find those facts using scientific process, but it is not easy. Our wetware keeps interfering.

Physical facts gives us the background, human truth values float on top on that inside our brain. Deviate too far from the physical world and you are cruising for bruising. But when it comes to individual experience, opinions and cultural “truths”, we all have separate brain and therefore separate experience. It might be a similar experience, but physically inside different brains.