aerovistae is talking about the <i>abstractions</i> provided by the language. Yes, all Turing-complete languages can all compute all computable functions. But not all languages structure those computations in the same way, or make the same things easy or hard.<p>For example, Python has the concept of a decorator: <a href="https:&#x2F;&#x2F;docs.python.org&#x2F;2&#x2F;glossary.html#term-decorator" rel="nofollow">https:&#x2F;&#x2F;docs.python.org&#x2F;2&#x2F;glossary.html#term-decorator</a>. You can achieve the same thing in a variety of ways in JavaScript, but Python makes the concept of &quot;a function that wraps another function&quot; a central abstractions by providing syntax directly for it.