Paul's essays are quite objective and plain scientific analysis of things with no subjective emotions attached.They are quite brilliant in that sense. But still

Paul's essays are quite objective and plain scientific analysis of things with no subjective emotions attached.They are quite brilliant in that sense. But still life is not governed by plain facts. Emotions are also important and emotions are what differentiate living from non-living.Sense of identity is governed by emotions. But still as I think in some more depth, even emotions appear to be manifestation of the fact that our genes are engineered to sustain itself and propagate. And since in the presence of a given complex external stimuli, it is difficult to take decisions with in the constraint of limited processing ability of the brain, emotions help in coming with some decision. And this decision may or may not be correct. Emotions can be thought of as the memorization of some decisions for some patterns of external stimuli.So finally everything seems to be quite deterministic with cause and effect relationships.So I am just perturbed and want to know whether there is a free will? And as I understand about probability, it just quantifies how much we don't know ( bit amusing in the sense that we quantify something which we don't know...and that is done using statistics which again makes it somewhat deterministic ).