Two kinds of objection are made to the claim that some languages are simpler than others. Many linguists have asserted that, as a matter of empirical observation, all languages are roughly equal in complexity, but very little evidence has been cited. A more weighty objection is that the claim is meaningless because the complexity of different languages is incommensurable. It may not be numerically quantifiable; but a comparison with the evolution of legal systems shows that that does not make claims of differential complexity meaningless.
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