Our perception and belief is our reality. Every false scientific belief IS truth, until proven otherwise. It is similar to Quantum?? psychology. Nothing exists until the human mind can concieve it, store it in episodic and semantic memory and share the perseption. Things that we now believe are truth, may one day prove to be false, but the truth is not altered until the human perception has been altered. You may argue that it has always been true but our perception was wrong, and you would be correct, but you would be unable dispute that truth until its falsehood could be concieved. Someone's beliefs may not be truth, but it is THEIR truth.