Yes, modern physics, is a useful abstraction, but it is a useful abstraction that represents fundamental reality well enough to make incredibly accurate, specific and counterintuitive predictions so don’t just dismiss it. It is more than just abstract.
The fact that some people 400 year back formalized the old idea of a material and immaterial world and dressed it up as science doesn’t make what they say correct. There were plenty of people in Descartes time that weren’t buying what he was selling. Princess Elisabeth for one.
You have probably been told things like substance dualism breaks the 2nd law of thermodynamics, but you probably don’t care even though it is a rather important law. Also, people have probably pointed out that the fact that head trauma, tumors, etcetera will affect everything and anything about your introspective experience, including your sense of self, suggests that your mind (rez -cognizance) isn’t independent of our brain (rez-cognizance).
The reason I am not substance dualism is because it is very unlikely to be true because it is very bad science. Extremely few people who understand the 2nd law of thermodynamics (physicist) or understand modern neuroscience are substance duelists and I care what these people think more than I care about what a “scientist” that died 400 years ago and had no insight into how the brain works thinks. If you were seriously interested in the truth in this matter, you would believe somebody like Michal Gazzaniga over Descartes. I recommend Gazzaniga’s Gifford lectures. They will blow your mind.
https://www.youtube.com/watch?v=dadT-14FkSY&list=PL8AD2B712B1A0578F
I think the idea of Dualism is broadly correct, but it does needs to be modified to make it fits with established scientific fact with substance dualism simply doesn’t do.
But it's not. There are machine-like elements, to be sure, but at the basis, humans (and all other creatures) are organic and not mechanical. They don't operate solely according to the abstractions of physics, in addition there is a much more sophisticated level of activity that occurs even on the level of cell division and growth. The machine metaphor is just that - a metaphor - and you could argue that it's a metaphor that's gone rogue, that is, escaped from its enclosure and wrought havoc in culture at large — Wayfarer
Sorry to highlight but this section of your answer is kind of lazy. You quoted the stuff about the musculoskeletal system, ignored the bit where I highlight less superficial parts of the body that said were mechanical (ATP synthase) and then tell me that once you get past musculoskeletal system is all organic and not mechanical. Of course, the body is organic. It is just that it is also mechanical when you look down at it with high enough resolution. The videos below explain.
https://www.youtube.com/watch?v=lUrEewYLIQg&t=303s
https://www.youtube.com/watch?v=9RUHJhskW00
It’s obvious I am not saying the body is a machine in the naïve, narrow and stereotypical way a child may see a machine. I am saying the body is machine in the sense that every aspect of what is does is mechanistic and things that are purely mechanistic can be called machines without abusing the term machine. If your definition of a machine is something made of mettle and is designed by a human we are not machines but that isn’t the definition of a machine
Oxford dirtionary “an apparatus using or applying mechanical power and having several parts, each with a definite function and together performing a particular task.”
Or
“any device that transmits a force or directs its application.”
Saying people don’t “Operate solely according to the abstractions of physics, in addition there is a much more sophisticated level of activity that occurs even on the level of cell division and growth.” I am the director of a Lab at a rather prestigious scientific institution. A staggering amount of information we have on how the body works at the smaller scale says it is all 100% mechanistic obeying physics 100% of the time. There isn’t even a hint of anything happening that isn’t 1000% explained by the laws of physics. Biology is just as mechanistic as movement of the motion of the planets.
It is difficult to convey how much we know and at what detail we know it to laypeople without just using superlatives. Laypeople really have no idea (sorry laypeople). We for example know the structures of over 100 thousand proteins. We very frequently know what they do and how they do it. Look at the video about ATP synthase. We have the crystal structure for the vast majority of it know how it works mechanistically.
https://onlinelibrary.wiley.com/doi/full/10.1002/pro.4038#:~:text=On%20January%2020%2C%202021%2C%20there,in%20the%20last%205%20years). –
“On January 20, 2021, there were 153,400 and 13,253 protein structures, respectively, determined by x-ray crystallography, by solution and recently solid-state NMR, and 6,814 by electron microscopy (a rapidly increasing number in the last 5 years)”.
I don’t know how to prove how much we know as scientists now as you need to be immersed in it. I can’t just quote you the entity of the scientific literature. All I can do is show you something like ATP synthase and say we have the same kind of information on masses amount of other systems and they are all just as mechanistic.
The fact that there are emergent properties that relies on the functioning of lots of molecular machine, such as cell division say nothing about if the human body is a machine. Machines can do thing that require multiple parts working together. We know a massive amount what is happening during cell division, down to the individual molecules. We know how memory works, down to individual molecules for example. This is not a good objection against the mechanistic nature of the human body as lots of machines have lots of parts that work together.
You think that the idea humans are machines is a metaphor, but I tell you as a scientist, the vast amount of information we have about the human body says we are as mechanistic as a computer and the atoms within us obey the laws of physics just as the atoms in any machine does.
Please understand, you do not have enough of a scientific background to understand how mechanistic science has shown the human body and all “life” to be. You also need to reassess where you are getting your information from.
You can ignore the philosophical reality of this by denying it or by saying its just a metaphor. You may even need to believe that it is true, but it isn’t true.