They say history is written by the victors, but perhaps more important to us, here and now, is that today's truth is decided by those with the loudest voices. As @jamesbrown suggests, we have to trust someone to trust their truth, and when asked who they trust, most people just point to the guy with the megaphone.

I think the key to getting people to accept one particular truth, is to show why they should trust the people who provide it. Perhaps there is a good reason they are not? That doesn't necessarily make the truth wrong, but since truth is about consensus, it does make it basically ineffective. Knowing something is true seems to me only half the battle, the other half is convincing people it is worth believing! Frustrating, I know, but these struggles so often are.

Thanks for your article, it really got my mind working.