&gt; I&#x27;m sure some people will look at this and think that it&#x27;s summing all of the numbers over 10 in xs<p>Perhaps it&#x27;s just a bias of familiarity, but that argument seems contrived to me.<p>I&#x27;m worried the rest of my arguments will amount to &quot;I like what I know&quot;, so perhaps we should lay this to rest as a difference in tastes. It does remind me a little of concatenation with `+`, which is oft-hated... and yet I&#x27;ve not seen a single error caused by it.