BTC.USD example of a quick use of "Fibonacci Retracment" tool

Posting as example in real time of a quick and easy measure.
This plot shows two possible pathways of an "ABC Correction".
Both options map an AB=BC (equal legs) move that is common.

The above chart uses TV's "Fibonacci Retracement" tool.
After placing the fib, I go into its "Settings" and make changes:
- un-checked the "Background" option (thus no coloration)
- un-checked many of the levels (and added some of my own)
- Changed the color of some levels (to pair the red and green ones)

The Fibonacci Retracement tool can be used as a custom Ruler.
You can set ANY ratios/increments, say (.25/.50/.75) or (.1/.2/.../.9)
You can set "Retracement" (+) as well as "Extension" (-) levels as needed.

Normally I use multiple such Fibs to map the bigger picture.
But this simple example occurs in all assets in all time frames.
Also, which level it reaches says something of the strength of move.