... all physics theories that I have been taught have two components: mathematical equations, and words that explain how the equations are connected to what we observe and intuitively understand. When we derive the consequences of a theory, we introduce new concepts -- protons, molecules, stars -- because they are convenient. It is important to remember, however, that it is we humans who create these concepts; in principle, everything could be calculated without this baggage. For example, a sufficiently powerful supercomputer could calculate how the state of the universe evolves over time without interpreting what is happening in human terms.
All of this raises the question: is it possible to find a description of external reality that involves no baggage? If so, such a description of objects in this external reality and the relations between them would have to be completely abstract, forcing any words or symbols to be mere labels with no preconceived meanings whatsoever. Instead, the only properties of these entities would be those embodied by the relations between them.
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