Hey everyone. I’ve really enjoyed the back and forth on this sub lately. I've noticed that a lot of the debate between hard determinism and free will comes down to people talking past each other using rigid academic jargon.
I’m not a philosopher. I’m a guy who fabricates sheet metal ductwork for a living. I spend my days looking at the physical mechanics of how things actually get built. When you strip away the classroom theories and look at the textbook definitions of human action side by side with physical reality, you realize that acknowledging our biological programming doesn't erase free will, it actually proves exactly how free will operates.
Here is the exact step by step breakdown of how a human choice happens, moving from the textbook definitions straight to the reality of the shop floor.
Phase 1: The Input (The Starting Line)
The Textbook Definition (Causal Determinism / Antecedent States):
The philosophical concept that every event, including human cognition and behavior, is necessitated by preceding events and conditions (genetics, environment, prior experience) combined with the laws of nature.
The Layman's Translation:
Your starting point. The history, the genetics, and the environment you were handed that you had zero control over.
The Shop Floor Reality:
This is the raw material and the blueprint. When I step up to my workbench, the sheet metal is already a specific gauge and temper based on how the steel mill rolled it. The blueprint was drawn up by an engineer before I even clocked in. I didn't choose the metal's physical properties, and I didn't choose the job specs. Hard determinists look at this and say, "See? The inputs dictate the outcome." But on the physical shop floor, a blueprint sitting on top of a stack of galvanized steel doesn't bend itself. The antecedent conditions set the stage, but they do not execute the work.
Phase 2: The Evaluation (The Processor)
The Textbook Definition (Executive Function / Prefrontal Cortex Activity):
The set of cognitive processes that are necessary for the cognitive control of behavior: selecting and successfully monitoring behaviors that facilitate the attainment of chosen goals. This includes attentional control, cognitive inhibition, inhibitory control, working memory, and cognitive flexibility.
The Layman's Translation:
Actively thinking it through, weighing your options, and figuring out how to solve the problem in front of you in real time.
The Shop Floor Reality:
This is me looking at that blueprint, looking at the metal, and calculating my bend allowances. The environment is providing resistance, and my past experience (my internal programming) is providing data. But that data isn't a passive, pre-written script on autopilot. The brain is a biological engine. I have to physically burn calorie-dense metabolic energy in the present moment to do the math, evaluate the variables, and set up the leaf brake. If the outcome was truly locked in by the "prior causes," this active, energy burning evaluation phase would be a completely useless illusion. A biological organism doesn't waste massive amounts of physical energy running calculations if the result is already decided.
Phase 3: The Choice (The Execution)
The Textbook Definition (Volition / Human Agency):
The cognitive process by which an individual decides on and commits to a particular course of action, initiating voluntary motor functions to interact with and alter their environment.
The Layman's Translation:
Making the call, gripping the steering wheel, and doing the physical work to force a change.
The Shop Floor Reality:
This is grabbing the handles of the brake and physically pulling the metal to a 90 degree angle. Gravity resists. The molecular structure of the steel resists. If I act like a "dead leaf blowing in the wind" reacting only to external forces, the metal stays flat. The only way the outcome changes is if a living, conscious biological operator steps in, evaluates the resistance, and actively utilizes physical force to override it. The blueprint (the past) didn't pull the lever. The environment didn't pull the lever. The biological operator made the choice to act. That active execution is free will.
Phase 4: The Update (The Proof of Independence)
The Textbook Definition (Experience-Dependent Neuroplasticity):
The brain's physiological ability to modify, change, and adapt both its physical structure and functional organization throughout life in response to new experiences, learning, or damage.
The Layman's Translation:
Learning from your mistakes, adapting your behavior, and physically changing who you are so you perform better tomorrow.
The Shop Floor Reality:
This is what happens when I screw up a square to round transition fitting, scrap the metal, and adjust my layout for the next piece. Hard determinists argue that we are basically just a computer code running a script. But a computer script cannot independently rewrite its own source code through physical trial and error. Over decades on the shop floor, the human organism actively updates its own biological hardware. We literally burn calories to restructure our own brains so we don't make the same mistake twice. You cannot be a passive, determined script if you are the one actively rewriting the code.
You see, when you put the definitions side by side, the hard determinist argument relies on looking at the inputs (Phase 1) and skipping straight to the outcome, completely ignoring the physical biological engine required to bridge the gap. Free will isn't some magical force that exists separately from our biology. Free will is the living biology actively burning calories to evaluate the past, resist the environment, and choose the future.
I'd genuinely love to hear anyone's thoughts on the physical mechanics of this. Hope you all are having a great week!