He has a commanding presence the moment he hits the water. His body seems to almost hover just above his competitors. At times it seems effortless, the others swimming behind in his wake. His butterfly will silence just about anyone watching. And as we have heard him say multiple times in the 2012 Olympic Games: he let's his swimming for the talking.
fast - [fast, fahst] adjective, fast·er, fast·est, adverb, fast·er, fast·est, noun
1. moving or able to move, operate, function, or take effect quickly; quick; swift; rapid: a fast horse; a fast pain reliever; a fast thinker.
2. done in comparatively little time; taking a comparatively short time: a fast race; fast work.
3. (of time) indicating a time in advance of the correct time, as of a clock.