False comparison: it's important to point out technologies, tools, track quality, and many other factors in this race. We haven't really improved that many seco

False comparison: it's important to point out technologies, tools, track quality, and many other factors in this race. We haven't really improved that many seconds. David Epstein has a very good talk about whether we've really gotten faster, better, stronger: http://www.ted.com/talks/david_epstein_are_athletes_really_getting_faster_better_stronger?language=en&utm_campaign=social&utm_medium=referral&utm_source=facebook.com&utm_content=talk&utm_term=science#t-521303 http://www.ted.com/talks/david_epstein_are_athletes_really_g...