Quote from gnome:
I'm a bit surprised. You're a smart guy (mathematician, right?), you're just not seeing* it.
Use of Fibs is kind of like TA. You know there's lots of buzz these days about how "TA doesn't work any more". Well, some parts of it work SUPER well, and others not**. Fibs aren't in the class of "best TA work", but some of them (under certain conditions.. WHICH OCCUR FAIRLY OFTEN) work well enough that they should be in every trader's tool box.
*maybe it's the chemist in me... they tried to train me to be observant.
** years ago there was a service (which I subscribed to) that tracked about 135 technical indicators every day... I didn't even know there were that many... The premise was that at times certain ones correlated well with the market and at other times different ones did. As you can imagine, the entire process was ineffective. By the time you figured out it was time to change "bag of indicators" to use, the move was either lonnnng gone or over.