While emailing back and forwards to a friend who's scientifically minded (and credentialed), we got into the nitty-gritty of the interpretations of quantum mechanics, and what it all means as far as 'free will' is concerned, and our daily lives.

My friend doesn't believe in any 'genuine' free-will, in that the choices we make are all, in a sense, 'determined' by forces or systems beyond ourselves (technically speaking, by downward causative influences).