Is life just a matter of physics and chemistry

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Discussion Overview

The discussion revolves around the question of whether human existence and decision-making can be fully explained through physics and chemistry, particularly in relation to the concept of free will. Participants explore the implications of viewing humans as "chemical machines" and the philosophical ramifications of such a perspective.

Discussion Character

  • Debate/contested
  • Conceptual clarification
  • Meta-discussion

Main Points Raised

  • Some participants express discomfort with the idea that humans lack free will, suggesting that decisions are made unconsciously by the brain.
  • Others argue that the concept of free will serves a social purpose, regardless of its philosophical validity.
  • One participant emphasizes that for practical purposes, individuals operate under the assumption of free will, which is essential for societal and legal systems.
  • Another viewpoint suggests that being a "chemical machine" does not diminish the special nature of human experience.
  • Concerns are raised about the philosophical nature of the discussion, with calls for clear definitions of terms like "free will" before proceeding.
  • Some participants assert that there is no evidence for supernatural influences, predicting that such concepts will never be established scientifically.

Areas of Agreement / Disagreement

Participants express a range of views on the nature of free will and the implications of viewing humans as chemical machines. There is no consensus on the validity of these perspectives, and the discussion remains unresolved.

Contextual Notes

The discussion touches on philosophical questions that may not align with the scientific focus of the forum, leading to concerns about the appropriateness of the topic.

John Pang
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Recently, in a tutorial session, my professor raises this question.
Experiments show that humans don't have free will. Decisions are made by us through unconscious activity of our brain. We are just conscious about the decisions our brain make. We are not actually controlling ourselves.
I feel really uncomfortable about this. What are your opinions over this topic? Are we humans merely chemical machines without souls?
 
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jerromyjon said:
There was another thread on this topic recently:https://www.physicsforums.com/threads/is-life-a-matter-of-evolving-chemistry.849997/
Which was locked for moderation and there it remains. Be careful not to lead into philosophy! Due to the non-scientific nature, PF rules does not allow discussion of topics which do not have scientific merit.

Good find, Jerro!

John Pang said:
Experiments show that humans don't have free will. Decisions are made by us through unconscious activity of our brain. We are just conscious about the decisions our brain make. We are not actually controlling ourselves.
I feel really uncomfortable about this. What are your opinions over this topic? Are we humans merely chemical machines without souls?

Here's the bottom line on this subject: for all practical purposes, YOU are making all the decisions in your life of your own free will. Now, you might say, what if I'm under the influence of phenobarbital or alcohol or hypnotic suggestion, etc., etc.,? I don't know, you tell me. Are there parallel universes rubbing their ass against our galaxies and posing as "Dark matter" and making us wonder if WIMPS exist while all the time it's just some big multiverse sham?

Whether or not we as humans have a genuine sense of "free will" is immaterial. The concept of free will is built into our psyche because it serves a social purpose. That social purpose is designed to compel the individual human to express an opinion as to some issue in the social discourse so as to create a chaotic condition whereby a consensus could lead to some stable limit cycle attractor which manifests as a sitting president, everybody waking up in the morning and going to work and tuning into the "Bachelor" at 7pm sharp. That's how it works.

So the issue as to whether we truly have free will or not is not really important nor relevant. Again, for all practical purposes we are assumed to and DO have free will. Most of the common law courts around the world assume this. If we were to eschew or question this, the legal systems would not be able to operate, and this would be a bad thing. My personal opinion is that it will be impossible to prove that we don't have free will as much as it will be impossible to prove that Jesus isn't the son of God or that a parallel universe isn't sucking us over to a great attractor on the left side of the screen
 
We are what we are. If feeling special, spiritual or human is something you do, then that is something that is the nature of the chemical machine we are. Why isn't a 'mere chemical machine' not special enough?

We aren't some illusion in the mind of god. We are actual chemical machines that can do all that we can thanks to our machinery.Free will doesn't mean anything.
 
Your "professor"? That implies someone with a doctorial degree and that you are in college? Wow. I would hope that any such nonsence was from someone without much of a science background. As already said, this seems to be a question of philosophy rather than science / technology. First, please define the term "free will" clearly precisely and consistently. We can continue the discussion once you've done that. I won't hold my breath. To answer your question (operating under the assumption that you will be unable to clearly articulate any sensible objective definition of the term), there is *nothing* known to require "supernatural" influences to explain the physical world. Based on our inability to find any evidence which stands up to examination to support non-physical aspects of existence, I am quite confident to predict that we will *never* establish the existence of anything "supernatural" (God, our souls, etc.) . Is a sunset just the diffusion of light thru our planet's atmosphere?
 
jerromyjon said:
Which was locked for moderation and there it remains
We do not allow philosophical discussions such as these. This thread is closed.
 

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