&gt; There&#x27;s a lot of low-hanging performance fruit in programming language design<p>Modern code generators are really, really good at straight-line code. Sure, if you&#x27;re writing everything in Python or Ruby or PHP then there&#x27;s a bunch on the table. But if you&#x27;re already doing C or C++, probably not so much.<p>And going parallel &#x2F; multithreaded &#x2F; distributed is still hard.<p>I don&#x27;t see low-hanging fruit unless you&#x27;ve already chosen to burn cycles for productivity. If you&#x27;re already at the performance floor, all roads are going to be difficult.