I dont have all the modern philosophical terms down, but I cannot see how materialists/physicalists can make any claims. If there is nothing but physical universe, then there is no “truth”. Actually claims dont even exist. It takes an agent or a mind, and there is no real agent nor mind. The correspondence theory of truth doesnt work in a monist physical universe. The “cash value” idea also doesnt work. Where can I read about someone trying to answer my issue with materialism? Im not sure I even know the terms well enough to search, and have tried a bit. And/or what is your attempt to address them?