<p><pre><code> But really, when something feels random, it usually means that there’s something we don’t understand
</code></pre>
You'd improve that understanding by showing standard deviations on that graph. Are the fluctuations bigger than expected by chance? How much bigger?<p>You'd increase it even more by mentioning that subsequent research wasn't nearly as definitive on the "lunch break effect": <a href="http://journal.sjdm.org/16/16823/jdm16823.html" rel="nofollow">http://journal.sjdm.org/16/16823/jdm16823.html</a>