I just remember when taking the college version of “Philosophy of the Mind” class.
And I was very vocal, and arguing we live in some strange small dimensional universe, etc, and the debate of free-will was raging.
I do think it’s philosophy because it’s impossible for me to prove we are 100% indistinguishable from some super advanced AI network.
So while I am not a prolific philosopher (wish I was) I can’t convincingly say we aren’t.
I mean, what if a 3000 lbs nano-wire mesh network brain was trained on everything known to man, including humility and not making itself even known to mankind…
What would we think of that? 
Wetware vs. hardware bias? 
Again, very philosophical.