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docs/bigo.html

@@ -108,6 +108,6 @@ <h1 class="title">Big O notation</h1>
 </blockquote>
 <p>Big O notation is a useful way to express rough estimates. It can
 help identify when a potential solution to a complicated problem is not
-feasible.</p>
+feasible by writing on the back of an envelope.</p>
 </body>
 </html>