The &#x27;greater rate in the past&#x27; would correspond with the supposed inflationary model of the universe (a very fast expansion just after the big bang), only the wording here is a bit confusing.<p>For more info: <a href="http:&#x2F;&#x2F;www.ctc.cam.ac.uk&#x2F;outreach&#x2F;origins&#x2F;inflation_zero.php" rel="nofollow">http:&#x2F;&#x2F;www.ctc.cam.ac.uk&#x2F;outreach&#x2F;origins&#x2F;inflation_zero.php</a>