Here is how to trade with this guppy.
when 6-8 lines tighten together, it means there will be high coming very soon. Trade according to where the next candle opens (for scalping etc). For example: if the 8 lines of guppy tighten and candle closes above guppy with momentum and trend in the same direction(up), then there could be expected a big move in that direction. Vice versa if a candle closes below the tightened guppy with momentum and trend at the same direction, then the will push price lower exponentially.
Easy. peace of cake. go make yourself a millionaire.
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.