async&#x2F;await is nice syntax, but it doesn&#x27;t change the fundamental difference between synchronous and asynchronous code and the viral nature of async functions. Sync functions cannot properly compose async functions in general.<p>A great essay on this is &quot;What Color is Your Function&quot;: <a href="http:&#x2F;&#x2F;journal.stuffwithstuff.com&#x2F;2015&#x2F;02&#x2F;01&#x2F;what-color-is-your-function&#x2F;" rel="nofollow">http:&#x2F;&#x2F;journal.stuffwithstuff.com&#x2F;2015&#x2F;02&#x2F;01&#x2F;what-color-is-y...</a>