Thesis: Bitcoin's price movements can be (dubiously) characterized by functional relationships between moving averages and standard deviations. These movements can be normalized into a risk metric through normalization functions of time. This risk metric may be able to quantify a long term "buy low, sell high" strategy.
This risk metric is the average of three normalized metrics:
* btc = btc price * yma = yearly moving average of btc, wma = weekly moving average of btc, dma = daily moving average of btc * std dev = std dev of btc
Important note: Historical data for this metric is only shown back until 2014, because of the nature of the 1st mentioned metric. The other two metrics produce a value back until 2011. A previous, less robust, version of metric 2 is posted on my TradingView as well.