I have to say that the fact that we are completely controlled by chemical reactions is an interesting subject...
I think that we are not entirely based on chemical reactions, these reactions are caused/effected themselves by external stimuli...
I believe that to have the diversity in human activities/behavioral traits that exist today, a source of 'true' random generation is required (As opposed to a vaguely predictable seeded one, though I hardly needed to explain this on this forum
).
This is where we get to the quantum world, since the reactions of Bosons and Fermions are only predictable to the extent where we can say there is X% chance it will do this and Y% chance it will do this, etc... in different situations, this is quite definitely (In my eyes at least), the source of the random variation...
We cannot explain the source of the 'randomness'.
If we take classical Newtonian, this is completely impossible, and if on top of this the source of it cannot be explained, is it entirely impossible that they are effected by the action of some invisible force, therefore not completely excluding the idea that a 'soul' might exist...., giving rise to the source of 'randomness' required to create the things we can see in this universe...
If we where to follow Omega's idea (Which is entirely based on Newtonian physics), it would be possible given enough computing power and the position of each atom when the 'big bang' (or whatever other theory you believe in) occurred and the amounts of energy each one had...., and other forms that where floating around in the form of Bosons....
Now, you might ask, how do you fit this in to your idea of all emotions are conditioned/evolved into us?
Well, my answer to that is similar to the current catholic churches view on why do people who are psychologically have limitations on how much they can express emotions, etc... and does this effect their soul...
I'll answer this question using a analogy that will be familiar to everybody on this forum:
Imagine your soul as a person sitting in front of a computer, they have an interface through which they can give commands to the computer (The computer represents the body and the interface (TUI/GUI) your brain), if your interface is buggy, however much you type in a command that is buggy, it will still not work properly..., that's my idea at least...
Jules