To Mrs Beanbag:
You're talking about the physical universe, where randomness already seems to exist. Some examples of that are radioactive decay, and the location of an electron in an atom's electron shell. Both are described by probabilities, and may well be truly random.
I'm talking about things like the soul: Are we souls, or just automatons? Do we act through the brain, or are we what's in our brains? And also: What's the nature of the origin of everything? And of course: What is everything in the first place? Pretty hard to answer, don't you agree?