But, and this is my take home message (because every talk should end with a take home message): you should remember the old meaning of the verb "to optimize": "to view with optimism". Thank you for your attention!
(Note: you may ask yourself: does this guy read old English dictionaries? No, of course not. This is taken from the great Donald E. Knuth and his talk about "The Dangers of Computer Science Theory", published in his book "Selected Papers on Analysis of Algorithms", CSLI lecture notes no. 102 (2000) p.22)