Truth, like all things, is relative
Take the color green, for example. We might agree that a certain color is green, but how can we be sure that we are all perceiving the same hue? If we both look at an apple and agree it is red, who’s to say that your perception of red isn’t someone else’s purple? From your viewpoint, you are correct, and from another person’s, they are correct too.
In essence, everyone can be right simultaneously, based on their own perspective. Reality is ultimately a matter of perception and how our limited, human faculties interpret the information presented to us.