Eye witnesses are notoriously unreliable. They testify to what they think is the "truth," and it is often incorrect. "Truth" is an abstraction, and it is often only an approximation of reality. What about the "truth" of Newtonian mechanics? It's pretty close when used to describe the motion a snail, and falls on its face when used to model particles traveling at near the speed of light. And in between, pick your color, white or black. The same concept holds for just about everything. There is no absolute "truth." Well, except for perhaps death and taxes.