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[enmaku]

I happen to have already set up a web site (with JSON API) that tracks a four-hour simple moving average with standard deviations for your emotionless trading pleasure (http://www.bitcoinreference.com/)

I'm working on getting some math in place (thanks for your suggestions chodpaba, I'm working on it) that fits the market movement a bit better than a normally distributed curve but for now it's certainly buying and selling out of fear and angst

The way I like to think of the way that data is presented on enmaku's website is that it shows you what sea level is while you are being tossed in the waves...

As well as a fair indicator of how tall those waves are likely to be in the next hour or two