Is very similar to SMU and SMU . The interesting part is to see the full effect of traditional indicators in a candle format rather than a simple plot format. Very interesting view in SPX . There is a very big clue in the chart as STDEV changed since 2008. Can you figure it out?
Also, try this in lower time frame and you will be amazed how Algo kills after each upside or downside. Fascinating
In true TradingView spirit, the author of this script has published it open-source, so traders can understand and verify it. Cheers to the author! You may use it for free, but reuse of this code in a publication is governed by House Rules. You can favorite it to use it on a chart.