It’s true, whether or not it’s believed.

Truth is not defined by personal opinion. To say that truth is relative to the individual is to deny the very existence of it. But in fact truth comes from a solid basis in objective, observable facts. And facts can be verified by others who view the same information. It is the existence of facts and imperical analysis that makes scientific study possible. If nothing at all were unltimately true, we could never know anything, and so if relativism were true, how would you know it?