<p><pre><code> Functional programs are amazingly easy to factorize. Anybody
who tried to factorize C++ code can testify to how hard it is,
and how long it takes to iron out all the bugs introduced
by factorization. With functional code, it’s a breeze.
</code></pre>
Is it really "with functional code" or more "with toy problems that never had performance related changes made to it?"