Do we have freewill?

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Muse

Lifer
Jul 11, 2001
38,384
8,685
136
We are free to choose our actions, but we aren't free to choose our consequences. We can jump out of an airplane without a parachute, but we're not free to bypass the consequences of that action.
Not exactly "free."

I don't recall seeing the sign in an airplane "this way to jump out, good luck!"

Also, IIRC, it's illegal to commit suicide in the USA.

Free is one of those words that have many different meanings because there are such varied contexts. Freewill is one of those loaded concepts because it presupposes the concept that you cannot make a decision. A man is asked, "have you stopped beating your wife?" What is he to say?
 
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Muse

Lifer
Jul 11, 2001
38,384
8,685
136
Are we though? Where does that freedom come from? Our brains work according to the deterministic rules of physics, no?
What makes you think your brain works by virtue of deterministic rules? That's cockeyed.
 

pmv

Lifer
May 30, 2008
13,628
8,519
136
What makes you think your brain works by virtue of deterministic rules? That's cockeyed.

So the brain is magic? It somehow operates outside the domain of physics? Where's the evidence for this theory of yours? It sounds cockeyed to me.
 
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Muse

Lifer
Jul 11, 2001
38,384
8,685
136
So the brain is magic? It somehow operates outside the domain of physics? Where's the evidence for this theory of yours? It sounds cockeyed to me.
Who brought up the idea of magic?

Physics is NOT deterministic. The idea that physics determines anything in some absolute unwavering way is an illusion. Heisenberg established that in his Uncertainty Principle.

Reality is merely an illusion, albeit a very persistent one. - Albert Einstein
 
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pmv

Lifer
May 30, 2008
13,628
8,519
136
Who brought up the idea of magic?

Physics is NOT deterministic. The idea that physics determines anything in some absolute unwavering way is an illusion. Heisenberg established that in his Uncertainty Principle.

Reality is merely an illusion, albeit a very persistent one. - Albert Einstein

My degree was in physics so I am aware of quantum mechanics, but apparently the brain doesn't operate at a level in which quantum effects would be important (I did once, long ago, think that maybe 'free will' could be explained that way, but apparently that doesn't work).

The question of what is down to psychology and experience and 'free will' vs what is due to deterministic physical processes going on in your brain is something I wonder about as my experience was very similar to this person's:


Were the symptoms she experienced a result of her 'free will', or not? Were mine?
 

[DHT]Osiris

Lifer
Dec 15, 2015
15,270
13,571
146
Who brought up the idea of magic?

Physics is NOT deterministic. The idea that physics determines anything in some absolute unwavering way is an illusion. Heisenberg established that in his Uncertainty Principle.

Reality is merely an illusion, albeit a very persistent one. - Albert Einstein
I tried walking through this, probably with him/her/them, already. Some people seem to think the universe is deterministic despite all evidence to the contrary.
 

PowerEngineer

Diamond Member
Oct 22, 2001
3,566
736
136
Who brought up the idea of magic?

Physics is NOT deterministic. The idea that physics determines anything in some absolute unwavering way is an illusion. Heisenberg established that in his Uncertainty Principle.

Reality is merely an illusion, albeit a very persistent one. - Albert Einstein

I understand the temptation to cite Heisenberg's uncertainty principle as an argument against determinism, however its impact is effectively restricted to the quantum realm of small particles that are isolated from complex interactions with other particles. At the levels of size and complexity that the brain operates at, the chemistry upon which it relies does seem to be deterministic. So I (choose to 😄) think that the question remains to be what other mechanisms (besides chemistry) might give rise to non-deterministic results from our brains.
 
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[DHT]Osiris

Lifer
Dec 15, 2015
15,270
13,571
146
I understand the temptation to cite Heisenberg's uncertainty principle as an argument against determinism, however its impact is effectively restricted to the quantum realm of small particles that are isolated from complex interactions with other particles. At the levels of size and complexity that the brain operates at, the chemistry upon which it relies does seem to be deterministic. So I (choose to 😄) think that the question remains to be what other mechanisms (besides chemistry) might give rise to non-deterministic results from our brains.
That's silly, if classical physics depends on quantum physics, all things depend on, and are influenced by, quantum effects.

That's like saying well, flight depends on pressure differentials, air currents, etc, and that stuff is all too big to be affected by individual atomic scale events, so classical physics doesn't apply to it.
 

Fenixgoon

Lifer
Jun 30, 2003
32,097
10,902
136
Who brought up the idea of magic?

Physics is NOT deterministic. The idea that physics determines anything in some absolute unwavering way is an illusion. Heisenberg established that in his Uncertainty Principle.

Reality is merely an illusion, albeit a very persistent one. - Albert Einstein
At certain length scales physics is deterministic, at least for a period of time.
 

[DHT]Osiris

Lifer
Dec 15, 2015
15,270
13,571
146
At certain length scales physics is deterministic, at least for a period of time.
Counterpoint: three body problems are technically deterministic (by our definitions) but are virtually impossible to calculate due to the impossible specificity of starting conditions required to calculate it. And that's a pretty simple system, considering the rest of nature.
 
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repoman0

Diamond Member
Jun 17, 2010
4,701
3,727
136
Counterpoint: three body problems are technically deterministic (by our definitions) but are virtually impossible to calculate due to the impossible specificity of starting conditions required to calculate it. And that's a pretty simple system, considering the rest of nature.
Exactly. So what’s to say that humans aren’t just incredibly complex deterministic machines? With 10^100 potential next state configurations every 10^-34 seconds, it’s so hard to calculate what’s next that it might as well be random. Same as the three body problem which is well defined by the differential equations of general relativity. To my knowledge there has been no demonstration of quantum uncertainty effects being important at the length and size scale of biological computations happening in the brain.

Whether we have free will or not, it sure feels like it, and to me life is just fine if “I” am just an inside observer of my particular information processing capacity. It doesn’t scare me either way. Actually I believe Max Tegmark in his The Mathematical Universe book suggests that he believes that consciousness is what it feels like for information to be processed, which I found to be an interesting take. He has a better grasp of physics than any of us combined (although it’s still just his opinion of course)
 

[DHT]Osiris

Lifer
Dec 15, 2015
15,270
13,571
146
Exactly. So what’s to say that humans aren’t just incredibly complex deterministic machines? With 10^100 potential next state configurations every 10^-34 seconds, it’s so hard to calculate what’s next that it might as well be random. Same as the three body problem which is well defined by the differential equations of general relativity. To my knowledge there has been no demonstration of quantum uncertainty effects being important at the length and size scale of biological computations happening in the brain.

Whether we have free will or not, it sure feels like it, and to me life is just fine if “I” am just an inside observer of my particular information processing capacity. It doesn’t scare me either way. Actually I believe Max Tegmark in his The Mathematical Universe book suggests that he believes that consciousness is what it feels like for information to be processed, which I found to be an interesting take. He has a better grasp of physics than any of us combined (although it’s still just his opinion of course)
I have his book and have read it, it confirms a lot of what I've felt about most of our existence and brought up a few new things as well (such as his 'consciousness is a mathematical formula being processed' theory. Regarding everything eventually being a deterministic machine, eventually you run into issues of nonsensical reductionism, like plotting out every classical physics interaction that ever takes place in our universe then claiming 'see, it was all deterministic'. With perfect tracking of an extremely complex system, you can only really prove it was random with a time machine. Mind you, claiming that the universe is definitely, absolutely deterministic completely removes free will from existence, which is still absurd.
 

[DHT]Osiris

Lifer
Dec 15, 2015
15,270
13,571
146
Regarding the lack of definable quantum effects in the vast majority of classical systems, I'll fall back on my pet theory that I've ranted about before. This is a simulation, non-quantum effects are an approximation because simulating a universe of quantum interactions is too resource intensive. The universe we're simulated off of doesn't have a separation, and it's 'classical effects' are caused directly by quantum interactions, or something built on top of quantum interactions which we don't get to sample.
 
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Muse

Lifer
Jul 11, 2001
38,384
8,685
136
I tried walking through this, probably with him/her/them, already. Some people seem to think the universe is deterministic despite all evidence to the contrary.
Yeah, seems sad to me. Another of my favorite Einstein quotes:

There are two ways to live:

As if nothing is a miracle

As if everything is a miracle
 

Muse

Lifer
Jul 11, 2001
38,384
8,685
136
The universe is constantly evolving. Is everything happening today determined by the state of things yesterday? Or 100 years ago? There are myriad ways in which that evolution could have turned out, one day or 100 years in the making. Or do you think it could only be like this? That's extremely absurd.
 

PowerEngineer

Diamond Member
Oct 22, 2001
3,566
736
136
That's silly, if classical physics depends on quantum physics, all things depend on, and are influenced by, quantum effects.

That's like saying well, flight depends on pressure differentials, air currents, etc, and that stuff is all too big to be affected by individual atomic scale events, so classical physics doesn't apply to it.
Now who is being silly? 🤷‍♂️

Your choice of flight is an interesting one because you imply that the movement and effects of individual air molecules must be taken into account when in fact aeronautical engineering relies on the emergent behavior of very large numbers of molecules as described by fluid dynamics. Is this a simplification of the underlying physics? Yes, but a very useful one. And also one that provides reliable and deterministic results - at least we better hope this is true whenever we board an airplane.

In a somewhat analogous way, the uncertainty seen in small particles (under carefully constructed conditions) due to the effects of quantum mechanics get reduced down for larger objects to the classical laws of physics we experience in our daily lives. And these classical laws of physics are arguably deterministic. I suppose you might argue that there is still a vanishing small chance that a tennis ball could pass through the strings of a tennis racket rather than bounce off, but how many times has that happened since the beginning of the universe? I'll guess that it never has.

Here's a YouTube video that explains this better than I can:

Why don't quantum effects occur in large objects? double slit experiment with tennis balls

So I will still argue that a basis for free will is hard to find in the biological (chemical) activity in the brain.
 
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PowerEngineer

Diamond Member
Oct 22, 2001
3,566
736
136
Counterpoint: three body problems are technically deterministic (by our definitions) but are virtually impossible to calculate due to the impossible specificity of starting conditions required to calculate it. And that's a pretty simple system, considering the rest of nature.
Just because something is hard or impossible for us to calculate does not mean that it isn't deterministic. Better to see it as a indication of human limitations. 😄
 
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Muse

Lifer
Jul 11, 2001
38,384
8,685
136
The answer's in your head!


Yes, indeed, and the choice IS Yoooouuuurrrss!

 

DAPUNISHER

Super Moderator CPU Forum Mod and Elite Member
Super Moderator
Aug 22, 2001
29,554
24,411
146
This is a simulation
I prefer this hypothesis over any other explanation I've read. We are just code. DNA data storage banished any vestige of doubt I had remaining. Sugar-phosphate instead of ones and zeros.
 
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sdifox

No Lifer
Sep 30, 2005
96,940
16,201
126
I prefer this hypothesis over any other explanation I've read. We are just code. DNA data storage banished any vestige of doubt I had remaining. Sugar-phosphate instead of ones and zeros.

mice I tell ya
 

Kaido

Elite Member & Kitchen Overlord
Feb 14, 2004
48,701
5,456
136
Not exactly "free."

Freedom of choice for how to choose to behave...not freedom from consequences! I read a quote recently that I really like, which went something along these lines:

No one is coming to save you...if want an amazing life, that's 100% on you.

Over the years, I've adopted the idea the true happiness requires taking 100% responsibility for our personal happiness in life. While we can't control everything that happens to us, we CAN choose how we react, which means that we can manage our consequences, whether or not we're personally responsible for what we're dealing with (ex. getting cancer, getting hit by a car in an accident, etc.). The most unhappy people I know are the ones who refuse to take any sort of personal responsibility over (1) their personal happiness, and (2) managing the consequences that are on their plate, regardless of the source of them.

We all exist within finite circumstances, which is why I like the concept of "moral agency", i.e. we get to choose to (1) change our situation (within the limitations of our means), and (2) decide how to act & react within our given circumstances. I was just surfing reddit & there were stories right next to each other about a guy who decided to shoot 14 people in Prague followed by another story about a guy who decided to donate his time to a local animal shelter by taking dogs for a walk on Christmas day because they didn't have anyone available to give them attention that day due to being short-staffed because of the holiday schedule. They both had their moral agency about how they chose to behave within their individual set of circumstances.

I've come to accept the fact that rejecting personal responsibility is simply living in denial (which we're all free to do! haha).
 

Muse

Lifer
Jul 11, 2001
38,384
8,685
136
Freedom of choice for how to choose to behave...not freedom from consequences! I read a quote recently that I really like, which went something along these lines:



Over the years, I've adopted the idea the true happiness requires taking 100% responsibility for our personal happiness in life. While we can't control everything that happens to us, we CAN choose how we react, which means that we can manage our consequences, whether or not we're personally responsible for what we're dealing with (ex. getting cancer, getting hit by a car in an accident, etc.). The most unhappy people I know are the ones who refuse to take any sort of personal responsibility over (1) their personal happiness, and (2) managing the consequences that are on their plate, regardless of the source of them.

We all exist within finite circumstances, which is why I like the concept of "moral agency", i.e. we get to choose to (1) change our situation (within the limitations of our means), and (2) decide how to act & react within our given circumstances. I was just surfing reddit & there were stories right next to each other about a guy who decided to shoot 14 people in Prague followed by another story about a guy who decided to donate his time to a local animal shelter by taking dogs for a walk on Christmas day because they didn't have anyone available to give them attention that day due to being short-staffed because of the holiday schedule. They both had their moral agency about how they chose to behave within their individual set of circumstances.

I've come to accept the fact that rejecting personal responsibility is simply living in denial (which we're all free to do! haha).
I was saying that your statement that you're free to jump out of an airplane is a misstatement when I said "not exactly free." Saying you're free to do something suggests that a choice to do it isn't generally discouraged by whatever agencies are involved. That is not the case for jumping out of an airplane except if you're wearing a parachute and I know that isn't what you were thinking.

AFA personal responsibility is concerned, I've been onboard with that for the last 50 years.

I'll say it again. You are not free to jump out of an airplane (unless you're wearing a parachute). It is, by the way, thoroughly illegal to do so.
 
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