Book excerpt: The idea that the universe is not made up of solid matter and that all that we perceive as objects —from atoms to stars— are really waves, has been around for a long time, going back to ancient Greece. As you can see, the existence of matter-waves is not a new concept. Ever since the physicist Prince Louis de Broglie formally suggested them in 1924, the modern scientific world has accepted the concept as a possibility but has not been able to rationally accept it for various reasons. Einstein hinted to the existence of matter-waves —while perhaps unaware of it— with his formulation of Special Relativity, which implied mass-energy equivalence. How can an object contract into an infinitesimal length as it approaches the speed of light and then go back to normal when it slows down without catastrophic structural damage? Spacetime may contract, but how is the structure of matter linked to spacetime so that it also contracts without damage? Einstein states that mass somehow transitions to energy and vice versa, not explaining the details of how and ignoring that energy and mass are such very different observables. The standard reasoning is that they are different manifestations of the same thing. But what is this “thing”, this substance that remains so infinitely malleable under special relativity and such a chameleon under mass-energy equivalence? Waves come to mind, but although they may be very malleable, can they be infinitely malleable and yet also have the property of forming rigid structures in order to pose as matter? What if matter and spacetime are both the same, synthesized by waves, and the substance that is waving is not a substance; does all of the above then become possible and rationally acceptable? Reality Unveiled explores, explains and justifies that possibility.