I would really appreciate some thoughts on my argument/thought experiment.  I can’t think of a logical defense of the existence of free will in the context of human action at the scale of the individual.

Base question:  
How could a system of order and control (free will) arise from a system of chaos?

Thought experiment:
Consider Universe A
Universe A begins much like ours with the big bang, but Universe A contains far less matter.  The Big Bang produces 10 particles as space expands.  These particles initially have some impact on one another, but this impact decreases as they continue onward and away from each other.  How could a system of true order arise from this system?  You might say there isn’t enough matter/energy for anything complex enough to form.

Consider Universe B
Universe B is different than Universe A such that it contains enough matter/energy to form complex life.
The big bang occurs, and every particle has it’s initial position, velocity, mass, etc. known.  If we know each particles starting information we should be able to calculate this information for the next frame, and out into infinity.  How then, could free will arise if given the starting information of the universe, we can determine the position of every particle (and therefore more complex information of living creatures with “free will”) at any point in time?

If free will is impossible in universe B, but possible in ours, what are the differences between our universe and universe B?

Please help me tear this idea to shreds; it’s depressing me