I should point out that the rascal responsible for <i>that</i> cause of bleary eyes in many a grad student is among us and even gloating about it - <a href="https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=10686686" rel="nofollow">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=10686686</a><p>;-)