Sentence:  The process of making computers on ever smaller scales, using physical degrees of freedom and the laws of physics in an ever more efficient manner, can be thought of as a refining process. In this process we are trying to refine and concentrate the computing power inherent in the laws of physics. You might ask, "Can we achieve 100% pure &apos;<WSD>Computronium</WSD>&apos;?" 
Meaning of the word marked with <WSD> tags:  A hypothetical material engineered to maximize its use as a computing substrate.