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Is the emergence of life an expected phase transition in the evolving universe?

arxiv.org

161–170 of 404 posts

Re: Is the emergence of life an expected phase transition in the evolving universe?

#161
post #122

Earlier quoted context omitted.

Now you're getting it.

I am, but this is just not what those words mean, to anyone.

Plenty of people do not believe the conceptualization of a natural/synthetic divide does any good. There are entire subsets of philosophy, feminism, cyborg theory, etc. which talk about this.

Re: Is the emergence of life an expected phase transition in the evolving universe?

#162
There is a whole genre of these, starting with (as mentioned in the paper's introduction) "What is Life?" by Schrodinger. I've been idly working my way through a bunch of them, including Monod's "Chance and Necessity" (dated but excellent), Nick Lane's whole series of books (notably "The Vital Question"), Nurse's "What is Life?" (good if you want to learn about yeast), Zimmer's "Life's Edge" (haven't finished it yet, seems good). Honestly, the details change, and the emphasis of each author, but they are all speculative and hand-wavey. Pre-paradigmatic. My favorite quote is from "Life on the Edge" by McFadden and Al-Khalili:

"Biologists cannot even agree on a unique definition of life itself; but that hasn’t stopped them from unraveling aspects of the cell, the double helix, photosynthesis, enzymes and a host of other living phenomena"

Re: Is the emergence of life an expected phase transition in the evolving universe?

#163

Earlier quoted context omitted.

How did that lump of plutonium become a lump? That part wasn’t natural.

"How did that lump of plutonium become a lump? That part wasn’t natural." Allow me to become a little philosophical but since human beings which are product of nature made plutonium, isn't the making of plutonium natural too? I mean everything that is happening in this universe is natural! I know the general usage of the words "artificial" for human-made and "natural" for everything else. But when we are talking at t…

Perhaps a better phrase to have used would have been "not prior to a complex system" -- as the lump of plutonium exists only because of a complex system doing its thing, it should be considered a consequence of the complex system rather than an alternative.

Re: Is the emergence of life an expected phase transition in the evolving universe?

#164
"Is the emergence of life an expected phase transition in the evolving universe? (arxiv.org)"

Easily answered:

    * We don't know how consciousness comes into being, indeed we can't rigorously define it or unambiguously identify its presence or absence.
    * We believe we have it, but we aren't sure whether other animals and/or objects possess it.
    * Therefore, based on Occam's razor, we may provisionally assume that all matter possesses some degree of consciousness -- this is the simplest assumption.
    * The alternative would be to argue for a consciousness exceptionalism in "life" forms for which there is no evidence and many counterarguments.
    * Therefore it follows that ... wait for it ... life is not a special state of matter or energy.
    * Therefore the emergence of life doesn't represent a phase transition that confronts physical laws or requires an explanation.

Re: Is the emergence of life an expected phase transition in the evolving universe?

#165

Earlier quoted context omitted.

It's almost teleological. Many people have ruled out God, but still want there to be purpose or direction.

Thats exactly what it is i think. Theyre unable to find meaning in the real world and need an equally mystical hand waivey narrative

Not my intention to toss science out the window.

All theories are just ideas or musings in the beginning. Until they are further defined, researched and proven.

Things like the earth circling the sun, sounded crazy at first. It also went against god.

If all independent 'thoughts' are diss-allowed because only "god" can provide the answers, then we'd still be living in trees wondering why the sun comes up.

How do you think we have anything, without someone, at some point, asking 'how does this work?'.

Re: Is the emergence of life an expected phase transition in the evolving universe?

#166

Earlier quoted context omitted.

Ok. What's an example of something low but non-zero on the spectrum of life? I'm having trouble thinking of one that isn't more properly "life-like".

Viruses? New understandings of mega-viruses have let us to believe that the line is really quite fuzzy. Some of these larger viruses have double stranded DNA, some have ribosome like functions, some have ERs, etc. Kinda like a cell, but missing random parts that make them truly alive. https://en.wikipedia.org/wiki/Pandoravirus

Potentially crystals as well. While we don't typically consider them part of "biology" there are some good arguments for including them as a form of life.

Re: Is the emergence of life an expected phase transition in the evolving universe?

#167
post #164

"Is the emergence of life an expected phase transition in the evolving universe? (arxiv.org)" Easily answered: * We don't know how consciousness comes into being, indeed we can't rigorously define it or unambiguously identify its presence or absence. * We believe we have it, but we aren't sure whether other animals and/or objects possess it. * Therefore, based on Occam's razor, we may provisionally assume that all ma…

That's not an answer, that's an argument. Occam's Razor isn't like the second law of thermodynamics. It's a heuristic.

Re: Is the emergence of life an expected phase transition in the evolving universe?

#168

Earlier quoted context omitted.

How did that lump of plutonium become a lump? That part wasn’t natural.

"How did that lump of plutonium become a lump? That part wasn’t natural." Allow me to become a little philosophical but since human beings which are product of nature made plutonium, isn't the making of plutonium natural too? I mean everything that is happening in this universe is natural! I know the general usage of the words "artificial" for human-made and "natural" for everything else. But when we are talking at t…

I love debating this with people but ultimately it's just playing games with semantics. The notion of artificial x natural is very recent and very localized. Some cultures would differentiate raw from cooked in a similar sense. But it's like talking about what is really green vs what is really blue. Completely circular since it depends on the definitions of the terms.

Re: Is the emergence of life an expected phase transition in the evolving universe?

#169
post #160
post #89

Earlier quoted context omitted.

Check out the work of Ilya Prigogine - he won a Nobel prize in the 70's for his work on self-organizing complexity. There is a selection force in the universe for increasing complexity, being driven by the dissipation of energy. When you have systems in non-equilibrium, there is a strong pressure to explore the possibility space to find ever more efficient ways to dissipate energy. A bacteria the size of a grain of s…

Very interesting. Do you have an intuition for why there is selection pressure towards energy dissipation?

My current intuition goes something like this:

Energy MUST flow. No matter how energy is captured and stored, there is a pressure for it to continue moving.

The movement of energy means that matter is always moving, and new configurations are always being "discovered."

Some configurations allow for energy to flow more easily, and when one of those configurations is "discovered" the movement of energy keeps that configuration in place. I think it's literally a strange attractor from chaos theory.

Areas of stable energy flow create correlations across space time that allow for more complex correlations to emerge.

Re: Is the emergence of life an expected phase transition in the evolving universe?

#170
post #89

Earlier quoted context omitted.

Check out the work of Ilya Prigogine - he won a Nobel prize in the 70's for his work on self-organizing complexity. There is a selection force in the universe for increasing complexity, being driven by the dissipation of energy. When you have systems in non-equilibrium, there is a strong pressure to explore the possibility space to find ever more efficient ways to dissipate energy. A bacteria the size of a grain of s…

So we're all agents of Entropy, spinning our circles until we die all in the service of heat death? I don't like it!

As someone said about thermodynamics: You can't win, you can't break even, and you must play the game. (Source unknown)
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