There’s very little you can’t compare. Douglas Hofstadter (and others) made the argument that analogy is the foundation of cognition. Our brains are capable to

There’s very little you can’t compare. Douglas Hofstadter (and others) made the argument that analogy is the foundation of cognition. Our brains are capable to tying together almost any two concepts. We sometimes teach ourselves to avoid certain connections, but the capability is there. Physics-wise, there will be some degree of resonance between any two circuits that aren’t an exact mirror of each other. And mirror circuits can be compared most easily of all.