its basically "extending price ". Square of 9 (or the hexagon chart etc) uses a point to project price levels. similarly to fibonacci levels, and murrey math. a Murrey math's 4/8 can be defined similarly as a 50% retracement.
but the difference is the fibonacci tools need 2 points, as with the sq9, hexagon, -agon charts and MM u use 1 point to project future price levels.
But in essence its all the "same".
Trivia:
fibonacci levels are not "fibonacci". They are ancient and existed before he did. he just made it famous.
Venus' synodic period/Earth's synodic period (225/365=0.618).
mercuryis 88-89 days to Venus' 225 days is = ~0.39 (close to 0.382)
Its all part of nature and has been there since time.
Have I got something on my face, SOLDIER?