Many athletes use Strava to rank their own performances over time, measuring not only speed and distance but also heart rate, power output and other information.

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The 400PT is a heavy monster that won't slide around the floor and it has cutting-edge electronics that measure heart rate, calorie burn and power output by the watt.

FORBES: Commentary

However, the uncertainty about the valuation of asset prices is arguably no greater than the uncertainty about potential growth rates and hence the size of the output gap, which is at the heart of most central banks' inflation forecasts.

ECONOMIST: Central banks, all a-quiver | The

Still, by any measure, Williams's 57 was an impressive output (21 for 21 from the line, which will warm the heart of every high school coach alive), and focused some deserved attention on one of the game's most talented but unheralded performers.

WSJ: Jason Gay: If Deron Scores 57 in the Forest...