In actuality, there are multiple Fib Spirals which appear on the chart. For me, the areas of particular interest are where the 5 red arrows are pointing.
Four of those arrows point to times beginning in August of 2013 where the price could not break out above the Fib Spiral.
The 5th arrow points to a support line drawn from June of 2006.
I believe if that support line is broken and gold is also unable to break above the Fib Spiral, where it has failed previously, then the gold price will likely move significantly lower in price - sub $1,000.00.
In fact, my suspicion is, based on this and other charts I have been looking at, that the gold will be 50% or less of the current price before the gold market resumes again, somewhere after 2019, perhaps as late as 2023 or so.
For gold, the Fib Spirals basically confirm what I have already seen using Andrews' action-reaction lines and the Pitchfan.
I'm not sure I would trade off Fib Spirals by themselves, but I do think they can be used to check other charts.
In this case, the Fib Spirals seem to offer solid confirmation of what my other gold charts say - so long as gold doesn't reverse higher through the overhead spiral.
It hasn't so far and I have no expectation that it will. However, if it does break above the spiral I would have to go back and look at my other charts and reassess.
I think, if nothing else, just as a check on prior work the Fib Spirals are worth trying.
I think the way TradingView has them set up, they are difficult to work with since when you adjust the scale of the chart or drag the chart around it moves the Fib Spirals.
Still, I think they are interesting and could prove useful.