I didn&#x27;t notice at first, but, like with some other Wikipedia articles, the editors of this one have enforced the E-Prime constraint on the article itself. After the possibility occurred to me and I went back to the page to check, I only found it particularly unnatural in the initial sentence, since almost every other article begins with the sentence &quot;[subject] is [concise definition].&quot;<p>For a similar example, the &quot;Plot Summary&quot; section of the page about &quot;A Void&quot; also conforms to its subject&#x27;s constraint--in that case, avoiding the letter &quot;e&quot;: <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;A_Void#Plot_summary" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;A_Void#Plot_summary</a><p>It surprises me that avoiding forms of &quot;to be&quot; presents such a challenge for me--particularly with this sentence. I feel that it makes my writing sound more repetitive, since I end up replacing &quot;X is&quot; with wordy alternatives like &quot;I find X&quot; or &quot;X seems&quot;; while I&#x27;m used to forms of &quot;to be&quot; appearing dozens of times in a paragraph, my replacements stand out more when overused.