I don't think 'free will' is well defined. Choices are either predetermined or random. I'm not sure what 'free will' really means.
I agree with "free will" isn't well defined :
So WE are free to decide that "Free Will" will be what we decide or choose freely to define under that expression :
Definition ( example of ) : "Free Will" is our self - defining power to define it-self as self - defining power , and sothe power to connect other decisions and choices we make with this autodetermination power WE DECIDE to be.
We haven't to find "free will" as an objecive phenomenon in physical reality : in any modell of "observed reality" what "WE" observe there is a nexus of "determinations" and "random" ( and very complex mathematical functions which could describe approximately such "interactions" in "objective reality" , in given physical theories ...)
The problem of "free will"
IS NOT to "explain" the ways which lead from past states to present state of "objective reality", but to
choose and decide about our OPEN FUTURE, and share with others "free will" as WE decide to be, what OUR COMMON FUTURE SHOULD BE, as deciding beings .
If there is an OPEN FUTURE , then we can choose ( in the "now" of actual presence and subjective consciousness ) to turn our attention and action towards different goals.
And so you CAN name these ability "free will" : no
knowledge of past or actual "reality" is sufficient to "determine" us in our own choices :
Only if YOU decide that some of your actual knowledge is sufficient to lead your choice in a given direction, this knowledge will "determine" your choice.
As "free will" , you aren't a "neutral" or passive observer out of the "reality" ! You are involved in "reality" , but nobody has nor can have a complete knowledge of "reality" .
And you can freely choose a philosophical theory in which what we call "reality" is not fully "defined" ...
So , if you decide that "Free Will" will not "exist" , it's your "Free Will" to make this choice ... and to assume the logical contradiction of your own "will" .
If you decide that there is "NO FUTURE" , then there is "NO FREE WILL" : but that is YOUR CHOICE ... not all possible choices .