Free Will

Free will is the ability of agents to make choices unconstrained by certain factors. The principle of free will has religious implications. In the religious realm, free will implies that individual will and choices can coexist with an omnipotent divinity. We believe salvation is only for those who freely choose Jesus as their savior and choose to follow his instructions and human evil is an unavoidable byproduct of God's gift of free will. If free will goes, so do those beliefs.

 

Do we really have "free will?" "Free will" is defined as: at the moment when we have to decide among alternatives, we have free will if we could have chosen otherwise. In other words if we could re-do  our life up to the moment we make a choice, with every aspect of the universe configured identically, free will means that our choice could have been different.

 

Some believe this sort of free will is ruled out by the laws of physics.

 

Our brain and body, the vehicles that make "choices," are composed of molecules, and the arrangement of those molecules is entirely determined by our genes and our environment. Our decisions result from molecular-based electrical impulses and chemical substances transmitted from one brain cell to another. These molecules must obey the laws of physics, so the outputs of our brain—our "choices"—are dictated by those laws. (It's possible, though improbable, that the indeterminacy of quantum physics may tweak behavior a bit, but such random effects can't be part of free will.) And deliberating about your choices in advance doesn't help matters, for that deliberation also reflects brain activity that must obey physical laws.

 

To assert that we can freely choose among alternatives is to claim that we can somehow step outside the physical structure of our brain and change its workings. We can't do that. Like the output of a programmed computer, only one choice is ever physically possible: the one we made.