All this market behavior seems like non-deterministic chaos AKA outcome is very sensitive to initial conditions and parameter variation. Similar to the weather. We know how it works to an extent, but the predictive power of the theory is lacking. Also, multiple atoms == statistical mechanics.
I'm a physicist; don't bring physics into this shit again
Agreed with all, except that statistical mechanics considers large numbers of SIMILAR atoms with VERY SIMPLE interactions (such as elastic collisions). If you have several types of atoms mixed together, or they interact in slightly more complex ways (eg. by covalent bonds) then Statistical Mechanics has nothing to say.