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The Grayness of the Origin of Life

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Re: The Grayness of the Origin of Life

#61
post #58

Earlier quoted context omitted.

Do we know that the heart has no experience? What level of complexity is required for experience?

Experience is not a function of a simple "level of complexity" but of structure with specific function. The idea that you reach a certain level of complexity and just get sentience as an incidental side effect of the complexity is a fallacy for multiple reasons. Sentience results from structures specifically crafted to create sentience. In the 21st century as opposed to the 12th century we know for sure that the stru…

Having a complex brain is one way to achieve sentience. It might not be the only way.

Re: The Grayness of the Origin of Life

#62
A few offshoots from this line of thinking…

Where do viruses sit on this scale of grayness?

Yes, viruses have organic molecules, information storage systems, and compartmentalization. No, viruses do not have metal catalysis (correct me if I’m wrong) nor do they have energy currencies (they rely on hosts for energy). Viruses appear rather gray indeed.

Can the grayness framework be modified/extended to describe superorganisms?

Superorganisms like bee colonies are only mentioned in passing and the authors do not try to apply their grayness framework. Organic molecules and metal catalysis aren’t as relevant beyond the molecular scale, but information storage systems, energy currencies, and compartmentalization apply just as well to superorganisms. Perhaps those are the more generalizable attributes of life.

I’m reminded of concepts from Schrödinger’s What Is Life?. Schrödinger describes local reduction of entropy to be a key feature — combining energy currencies with compartmentalization is one way to achieve that. Separately, he discusses the hereditary mechanism and suggests an “aperiodic crystal” could encode heritable information.

What would be the contents of a sister article titled “The Grayness of the Origin of Consciousness”?

I would love to see an outline.

Re: The Grayness of the Origin of Life

#64
post #25

Earlier quoted context omitted.

Is there a consequence of your thinking? I don’t think it’s arbitrary. There’s a clear distinction between say a rock and a cell, even if you view the rock on geological timescales and the cell on biological timescales. I don’t think it’s arbitrary or even surprising that humans view things from our own vantage point in reality.

There's a negative consequence - If the line between life and non-life is blurry, that means there isn't a clear place for souls to fit in. If life can be completely explained as an emergent property of individual non-living parts, (ultimately, atoms aren't alive, even though they make up living things) then we can't tell whether souls exist in our universe or not. This isn't a big deal for science, but it's a moral…

> If the line between life and non-life is blurry, that means there isn't a clear place for souls to fit in

If "souls" aren't defined precisely enough that there's an experiment that give different results depending on whether they exist, then the statement "souls exist" is meaningless, and anyone saying it is not even wrong.

> This isn't a big deal for science, but it's a moral victory for atheists.

Theists won't care, although I suppose some will mutter something about separate magisteria.

Re: The Grayness of the Origin of Life

#65
post #19

Earlier quoted context omitted.

Why not go further and say the entirety of "our reality" is a human hallucination, as our senses are limited and our brains peculiar in how they process their inputs. That the "real reality" is an imperceptible-to-us dance of fields (even that is only as far as our theories take us).

At the risk of sounding like a hypocrite after my "Not finding souls is a victory for atheism" comment: What does that add? Do we have better models if we say we're all hallucinating the same seemingly-kind-of-objective reality? What if I'm the only human, you're all p-zombies, BUT all dogs are conscious?

Lots of loaded words in the comments, and hallucination probably takes some of us to places that aren't helpful, but understanding the limits of our perception and understanding gives us better context. Even if we don't understand the limits, it's helpful to know that our reality and reality are separate things. If we don't know we have blind spots, we won't know to check them.

Re: The Grayness of the Origin of Life

#66

A few offshoots from this line of thinking… Where do viruses sit on this scale of grayness? Yes, viruses have organic molecules, information storage systems, and compartmentalization. No, viruses do not have metal catalysis (correct me if I’m wrong) nor do they have energy currencies (they rely on hosts for energy). Viruses appear rather gray indeed. Can the grayness framework be modified/extended to describe superor…

> No, viruses do not have metal catalysis (correct me if I’m wrong)

RNA viruses would generally have an RdRp polymerase which requires a metal ion.

Re: The Grayness of the Origin of Life

#67
post #52

Earlier quoted context omitted.

>The Sun provides photons that most cells need in order to live but Desulforudis audaxviator have decoupled themselves from that source of energy. In theory they could outlast the solar system or hitch a ride on a rogue planet. I suspect it's the opposite; first there was life and then it evolved to use sunlight. How did life arise on earth right after the rocks stopped being red hot? The only reasonable theory in my…

> And of course panspermia isn't new or my idea particularly, but what bugs me is instead of saying there needs to be more evidence, it should be the default assumption. Our environment is just not representative of most of the universe even if you ignore non-baryonic dark matter. One might dismiss this by invoking the anthropic principle (a blunt argument, sorry). Most of the universe is void, and planets with no su…

If panspermia is true, I think it’s most likely life evolved on a planet orbiting a star. It just seems to me that the energy availability and chances of having liquid water are more conducive.

That planet then was destroyed or fragments broken off, scattering life enriched matter into star forming nebulae. This seeded more planets, which then broke up scattering more life enriched matter. After several cycles of this you’d end up with life, or at least sophisticated organic molecule enriched matter all over the galaxy.

Re: The Grayness of the Origin of Life

#68

I find it fascinating that abiotic chemical/physical cycles are considered an integral part of early life (e.g. if your nutrient transport is environmental osmosis/tides/whatever, you're still alive but the larger environment is an integral part of your biochemistry). From that perspective the freshwater cycle is still a major component of biochemistry (bulk ion transport) on Earth, despite arguably being a physical…

> despite arguably being a physical state change and not chemistry per se.

It remove salt from the water but more importantly move it to the top of mountains, which adds energy into the system. Chemistry happens when the water disolves sediments and carry them back to the oceans.

Re: The Grayness of the Origin of Life

#69
post #58

Earlier quoted context omitted.

Do we know that the heart has no experience? What level of complexity is required for experience?

Experience is not a function of a simple "level of complexity" but of structure with specific function. The idea that you reach a certain level of complexity and just get sentience as an incidental side effect of the complexity is a fallacy for multiple reasons. Sentience results from structures specifically crafted to create sentience. In the 21st century as opposed to the 12th century we know for sure that the stru…

The heart of a cow (and any vertebrate) can beat on it's own. Each muscular cell of the heart beats, and they coordinate the beating when they are in contact. Also, there are a lot of neurons in the heart to synchronize the beating of the different parts of the heart.

IIRC It can keep beating even without brain signals. It's not the ideal rate of beating, and there are other problems, but the heart somewhat beats on it's own.

I don't know how many sensing neurons the heart have and how they interact with the beating. The heart is not as "smart" as a brain, but it's "smarter" than a rock.

Stealing the examples from other comments: Is the heart of a cow smarter than a planaria? Is the heart of a cow smarter than a hydra?

Re: The Grayness of the Origin of Life

#70

Earlier quoted context omitted.

Experience is not a function of a simple "level of complexity" but of structure with specific function. The idea that you reach a certain level of complexity and just get sentience as an incidental side effect of the complexity is a fallacy for multiple reasons. Sentience results from structures specifically crafted to create sentience. In the 21st century as opposed to the 12th century we know for sure that the stru…

The heart of a cow (and any vertebrate) can beat on it's own. Each muscular cell of the heart beats, and they coordinate the beating when they are in contact. Also, there are a lot of neurons in the heart to synchronize the beating of the different parts of the heart. IIRC It can keep beating even without brain signals. It's not the ideal rate of beating, and there are other problems, but the heart somewhat beats on…

Yeah the heart can beat according to its internal pace maker and a CNC machine can move about and cut a work piece according to its internal program. We have no reason to believe that either is sentient. Maybe a thousand or so years ago when people did not fully understand that the brain is where consciousness takes place. Nowadays there is no excuse. Autonomy is not sentience. Your heart does not have feelings or a sense of self. Evolution did not require that to build a somewhat self regulating muscular pump. The rock vs. cpu example was a little hyperbolic I guess.

My point is simply the presence of interconnected neurons running a certain program is not sufficient to give rise to sentience or conciousness. I believe what we call sentience or conciousness is not an accident or even really an "emergent" phenomenon but rather the direct, purposeful result of specific structure that was selected for by evolution.

The phrase "level of complexity" is inartful because it implies there is one axis or dimension to complexity when that is not the case. If you make a random soup of 100 billion interconnected neurons and teach it to classify images it is highly unlikely that you will get a sentient being by accident although you may have a very efficient neural network at the task it was designed for. If however you take a 100 billion neurons and subject them to the selective pressures of evolution in the real world, where a sentient or self aware self may have advantage then it is not unlikely perhaps that you end up with a sentient or counscious being. Thus sentience is the result of specific selected for structure not the random outcome of a certain level of complexity. I don't see why this is even contraversial.

General intelligence does not exist divorced from the real world and it does not just happen as the side effect of a certian "level" of complexity.

With regard to the question is the heart of a cow smarter than a planiar (worm) whole organism I do not see this as a meaningful question because the starting premise is wrong. The starting premise assumes that there is some abstract quality "sentience" or "intelligence" that exists on a single axis, a continuum of "levels." I'd say the axis does not exist, there are no levels, what matters are functions and it is not meaningful to argue whether or not the planarian or the heart is at a higher level of intelligence because the preform different functions. Notably one is a free living creature while another is an organ inside another creater. I think they are incomparable. Neither has the specific brain structure that gives humans and other higher animals sentience so it does not make sense to argue whether one or the other is at a higher level when neither is at any level at all in terms of a structural or functional comparison with a brain. A worm is not further ahead or behind a heart when compared to a brain because neither is anything like a brain. Maybe a plannarian can learn. I doubt a heart can learn but maybe it can. But overall the idea of levels of sentience or sentience simply emerging from complexity that does not intentionally provide for it is silly in my opinion.

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