Comments on: ‘Nine Classic Essays on Education’ Essays, Journals, Book Reviews, Commentary on Literature & Culture Sat, 30 Nov 2013 22:11:23 +0000 hourly 1 By: George Tue, 16 Aug 2011 01:46:57 +0000 I think that Mencken was a trifle unfair here. “As every schoolboy knows”, sorting is in the most favorable case O(n log n), which for about 1600 entries means something over 16 thousand comparisons. Assume an average of even a hair over a second per comparison, and that means five hours to sort the cards into the order of priority. With the best will in the word, I don’t think I could manage more than an hour of riffling through such cards. I suspect that the professors did a pretty distracted job.