Performance surely doensnt matter in the main stream - my grandma's computer has comparable processing power to supercomputers 20 years ago( and she has a Penti

Performance surely doensnt matter in the main stream - my grandma's computer has comparable processing power to supercomputers 20 years ago( and she has a Pentium 4, that has been obsoleted many times over already) [1]. But I think google would pay attention to software performance on their Terabyte-eating map-reduce clusters. Or someone who doesn't want their iphone app flagged as "battery hog" for that matter. "Pay attention", not as in squeeze out every extra cpu cycle they can, but as in do the 10 % extra thinking that would get the reasonable 2-10 fold improvement over the naive implementation. At least that's my experience - maybe i'm just really bad with my naive implementations, YMMV. [1]http://en.wikipedia.org/wiki/Orders_of_magnitude_%28computing%29#109 http://en.wikipedia.org/wiki/Orders_of_magnitude_%28computin...