One person's 'truth' is this year's Global Climate El Nino Warming Jetstream from Africa Change that has no ill effects in Cuba or its waters because Castro is THAT scary.
Angels on a head of a pin becomes subatomic particles vibrating string theory leaking gravity from a parallel dimension where I'm a billionaire. The Universe is 15 billion years old, complete with stars at least 18 billion years old. A fetus isn't human, unless you murder the mother, and the complicated sounds cetaceans make to each other is not communication because it's not English.
The mutability of belief and truth is only rivaled by their permeabilty, but that's ok, just a little faith and a new prophet with some specially tailored data shall come along to patch erroneous facts up. They shouldn't even be printed in books, just left it online so it's easier to delete when the Brand New and Improved! version comes out.
And of course, Domino Theory Fallacies may still bear, um, truth on occasion, so why not?