Posts Tagged ‘entropy’

entropy again

November 20, 2024

The simplest form of what gets called entropy, is the dissipation of energy that occurs every time energy is directed to do some work. Energy gets lost when it is used.

Some, to all, of this dissipated energy cannot be regathered or reused without even more energy use and dissipation. It is not worth the effort.

This means that a system without an ‘outside’ source of energy (eg. a human body without food, the Earth without the sun), will eventually run down. No system can generate enough energy to keep itself going forever, it must take energy in from outside itself. This is why there are no perpetual motion machines.

As all organisms, materials and machines which use energy or direct energy to work or movement, or action etc. dissipate energy, wear out, suffer friction or accidents, do not replicate correctly etc, the idea of entropy is also applied to overall dissipation of ‘order’ or ‘functionality’ in the system or in relationships between participants in the system. Growth and development occurs when there is enough energy available for functional participants to build (often increasingly complex and) functional patterns and relationships.

‘Things’ and systems break down because it eventually takes more energy to maintain them than they can gather or direct to repairs, or there is no easy-enough access to external energy. It points to the idea that if ‘processes’ or things are not maintained and repaired they will eventually fall apart, or otherwise change from their ordered or functional relational states. However if the input and direction of energy can be maintained this is less likely, but accidents and breaks in relationships usually accumulate. Participants can end up building an order which is hostile to them and undermines their attempts to maintain and repair the system to which they belong.

It seems habitual for human organizations to become so complicated and complex as they grow that they expand beyond the ability of humans or machines to maintain or repair the functional relationships between participants (not enough energy or time) and head into collapse or decay, or to some new emergent order (if there is enough energy).

It is in some sense possible that the USA is more likely to breakdown through overwhelming infrastructure (bridge, roads sewage, water supplies, electricity cables, etc) breakdowns and misconnections, than from stupid politics. But stupid politics will not help maintain functional relationships, or will direct energy away from the problems.

Continuing the points: systems of ‘physical entropy’:

February 18, 2024

Physical Entropy

  • Living systems take energy from outside their own fuzzy boundaries in the form of sunlight and/or food.
  • The boundaries are fuzzy, because the living system would not exist without the food and sunlight. They use this energy to build, repair and develop themselves.
  • In this building, repairing and developing, living systems turn energy sources into waste, in the form of excreta: gasses, liquids and ‘solids’.
  • In a coherently evolved system this ‘waste’ then acts as food for other beings (plants, insects, worms, etc). The waste does not accumulate, poison or overwhelm the system as a whole, but is ‘recycled’ as part of the Gaia system.
  • Eventually most living systems either change through processes of evolution, start to run down, or can no longer extract enough energy to keep their processes completely functional. They wear out and die – assuming that they do not die by accident or through feeding some other being. As they wear down the chances of accident increase – they can avoid fewer accidents or recover from them as well as previously.
  • We can call this process, after it starts, “physical entropy” to distinguish it from normal entropy which is the dispersion of energy, into non-usable forms (usually as heat).

Social generation of Physical Entropy

  • All social systems, like all other systems, generate entropy or energy dispersion. This what they do. As long as the Sun keeps going this is not a problem for Gaia as a whole, although systems which use non-renewable energy may face considerable challenge.
  • ‘Physical entropy’ likewise happens normally, but can also be generated by economic and social systems, to a degree which overwhelms these social and economic processes.
  • Sometimes this may arise from the system slowly suiciding, although the system may be able to responsively change and adapt, and not suicide (as argued in the Toynbee cycle [1]).
  • This blog considers social generation of ‘illth,’ the term John Ruskin developed for the generally ignored (by the elites), but socially generated forms of harm which manifest as increasing physical entropy. Illth is the opposite of wealth. Ruskin appears to argue that true wealth is collective.
  • The blog recognises Illth as arising from the following processes. There may be more.
    • Pollution: when materials are released into the ecologies, which are poisonous or non-reprocessable by those ecologies. It is contrasted to recyclable ‘waste.’
    • Dispersion: when essential materials are dispersed into the ecology, and require too much energy to be able to recompile. Contemporary Marxists talk about this as the ‘metabolic rift’.
    • Destructive extraction: when the process of gathering essential materials destroys or poisons ecologies, faster than they can regenerate, or makes regeneration impossible in a humanly ‘reasonable time frame’.
    • Harmful production: when the process and products of economic action hurt beings.
      This includes harmful labour and work which poisons people, causes them to develop occupational or consumerist illnesses, distracts them from challenges, hurts their modes of being and thinking, and so on.
    • Expansion – involves a society or a social process growing beyond the ability of the ecology, or the extraction system (etc) to support it. Expansion can also involve military force aiming to get new ‘resources’. Any social feature which demands increasing ‘growth’ is going to lead to crisis in a finite bounded system, possibly fairly quickly. Estimates show that we already ‘overshoot’ or consume more in a year than the planet can produce in a year. This should show that continual growth is no longer an option. In 2023 we consumed Earth’s production by the 2 August. In 1971 we consumed it by nearly the end of December, so the increase of destruction is marked. We are already highly indebted with a lowering income.
      • [I don’t know if this is correct or not, but these figures result from using the exponential growth calculator. Let us assume that we currently consume 1 earth per year and are just about balanced. Let us also assume that we grow at 2% per year. That’s pretty small by capitalist standards, probably bad for business. In just 100 years (assuming this would be possible without interruption or collapse), we end up consuming 7.2 Earths per year. That is clearly not ‘sustainable’. Continuing expansion is destructive]
  • Physical entropy can be ‘natural’ and the system slowly evolves to a new equilibrium (attractor point).

Power Relations and Physical Entropy.

  • As shown, in social systems, physical entropy can be generated by unconsidered social processes, or through elites ignoring both the entropic challenges which are arising and the energy needs for repair. They presumably are worrying about other things, or severely implicated in producing the entropy to maintain their status or power, and worry about other things to keep themselves from worrying about their own self-destructiveness.
  • Social entropy often involves power relations, or the ability to keep on generating illth processes, against opposition, or evidence of impending collapse.
    • Power relations allow pollution to be usually dumped on the relatively poor and powerless.
      Elites think they will be immune.
    • Power relations and technologies allow elites to consider that dispersion of materials will be overcome by economic need and economic processes.
    • Power relations allow people and other beings to be dispossessed from their land or water (or even killed), and for that ecology to be destroyed. The inhabitants and users are ignored, while the elites consider themselves immune.
    • Harmful production: the elites consider themselves immune from harming others, and are able to make people work in harmful labour.
    • Power relations make expansion continue, because it is thought be elites to be essential, and it gives the less powerful some hope of sharing in social wealth.
  • The more energy is dispersed and systems start to break down (perhaps because of power relations) the more vulnerable the system becomes to accident overtaking the ability to repair, especially with cumulative accidents, such as wild weather events coming one after the other. Hence the system is also likely to collapse, unless this challenge is dealt with. For example, the Lismore floods reached 11.6m in march 2017. Repairs were not complete before the record floods of 2022 when the flood level reached 14.4m. Lismore today is still full of damaged and unusable buildings (personal observation), and obviously there is some lack of human energy, because we don’t know how long it will be before the town and surrounds seriously floods again.

Capitalism, Developmentalism and power

  • Capitalism and developmentalism, especially their neoliberal forms, can be considered as a systems of: power relations, exchange, production, and illth generation.
  • Many other systems are systems of production and exchange which are not remotely capitalist – unless you are willing to define capitalism so generally that even a working communism would count as capitalism.
  • Many other economic systems can generate illth production. Overthrowing capitalism may not be either necessary or enough to stop illth. We are simply referring to the obvious present.
  • Neoliberal Capitalism and developmentalism (and state communism if you wish) seem patterned by their illth production and the power relations that allow this to continue.
  • As cleaning up, not polluting, not dispersing, not destroying etc, cost companies money, and therefore subtract from profit, capitalist organisations will make non-destructive behaviour secondary and consider illth to be an externality which is no concern of theirs, unless they are compelled to prevent it by regulations and legislation. Pro-corporate politicians will often try and remove any restrictions on pollution as part of their service to profitable polluters and destroyers.
  • Power relations and normal capitalist processes of advertising, PR, hype, marketing, misdirection, etc, also corrupt the production and distribution of information, and disempower movements against illth. Workers do not have the knowledge to act and face the dangers or asking. For example: Exxon knew about climate change and denied it to maintain sales and profit [1]. [2], [3], [4], [5], [6], [7], [8].

Not Suiciding by Physical Entropy

Not suiciding or system continuance, requires, at a minimum:

  • 1) System repair: Systems that are wearing out, need repair or replacement. Repair or replacement need available energy, money, ‘resources’ and organisation.
  • 2) Maintaining renewable resources: Renewable resources (including oxygen production), should not be used, or destroyed, faster, than they can regenerate.
  • 3) Replacement of non renewable resources: non-renewable resources should be replaced by renewable ones, wherever possible.
  • 4) Fewer physical entropy and illth generating actions: Only production of recyclable waste and less pollution, less dispersion, less destructive extraction, less harmful labour.
  • 5) Careful waste production: no waste should be produced faster than it can be recycled or re-processed. Obviously that includes CO2 and other Greenhouse gases.
  • 6) Recovering awareness: Less unconsciousness of the social and economic destruction of systems that support continuance – ecologies, other people and so on.
  • 7) Better information sources, that are independent of corporations and governments.

These are all relatively obvious, sensible and logical processes, hence they have been avoided for 50 or so years. We cannot assume that sense and logic is persuasive to the elites or the populace.

The next blog speaks more directly to solutions.

Question about Entropy

April 23, 2023

I’m currently writing about energy, and I keep coming up against the concept of negentropy or negative entropy, and I just don’t get it. So it would be great if someone could explain it or point to a good URL. So far the urls or texts I have seen do not explain my issues away.

Background

You will all probably know the background ‘laws’ of thermodynamics of which two are particularly important.

0) Left to itself heat flows from a higher concentration to lower concentration. If two thermodynamic systems are each in thermal equilibrium with a third, then they are in thermal equilibrium with each other.

1) Energy can neither be created nor destroyed. The total energy of the universe remains constant.

2) Any use of energy will result in some energy being dispersed and becoming unavailable for use. This is entropy. The entropy of an isolated system [that is a system with no external source of energy] will tend to increase over time and, eventually, the system will cease to function.

3) At zero degrees Kelvin, no waste heat (entropy) is producible. [that is a paraphrase, which I hope is correct.]

Entropy is a process, not a thing. It is generally said to be irreversible. As a result, entropy marks time.

The Question

The question is what is the use and validity of the idea of ‘negentropy’. People seem to talk about the ‘consumption of negentropy’, which does not make sense to me at all. You cannot consume entropy, so how can you consume its ‘negation’? Are you violating the first law, which says energy cannot be created?

I’m assuming that negentropy arises because people want to make entropy equal to disorder, hence there is a problem of apparent increasing order as with life Life appears to build more and more complex order and repairs itself. (I think Schrodinger invents the term ‘negative entropy’ to ‘solve’ the mystery of life).

“[an organism] can only keep aloof from it [entropy], i.e. alive, by continually drawing from its environment negative entropy – which is something very positive as we shall immediately see. What an organism feeds upon is negative entropy”

What is Life p,71).

He goes on to ‘explain’:

If D is a measure of disorder, its reciprocal, 1/D, can be regarded as a direct measure of order. Since the logarithm of
IID is just minus the logarithm of D, we can write Boltzmann’s equation thus:

  • (entropy) == k log ( riD) .

….. entropy, taken with the negative sign, is itself a measure of order.

ibid: 73

I don’t like to think that I’m saying Schrodinger is talking bullshit as its hardly easy to justify, and in his defense there seem a large number of different interpretations of what he said.

What seems to be the case

However, there is nothing in the laws of thermodynamics, which says that with an external energy source, ‘processes’ cannot build what appears to be order, or even temporarily make a place exceedingly orderly. All that seems to be required to be recognised is that the building of order, maintenance, repair or regeneration etc., takes energy and disperses energy. Consequently, all of that energy is no longer accessible to the system. That is it. Energy is used and dispersed to make order. No need for negentropy, or consumption of negentropy, at all.

After a while, it takes more energy to keep the organism or information going, and it eventually breaks down (unless its a bacteria perhaps, but its not the same being after it has split many times). Again, this is connected to the Second Law in that energy is dispersed in attempting to make the order, and if something gets way too complicated it can take more and more energy to maintain, and run out of access to enough energy to maintain, and therefore starts breaking down.

Over time, the organism (or an information string if you want to tie entropy to information) tends to fail to replicate properly – there is not enough energy available to each complex organism to ensure that every replication is accurate all the time. Likewise it takes less energy to make up bullshit than it does to make up accuracy. This failure to replicate accurately can lead to evolution if failures prove ‘useful’ to further replication.

Maxwell’s demon sometimes seems to get tied in with negentropy. You all know this involves an imaginary creature opening a door to let gas particles accumulate in one side of a box. The imaginary demon’s actions (if it were to perform them) take energy. There is no apparent mystery. The box gets organised because the ordering takes and disperses energy.

So what does the idea of negentropy add to anything?

A Social science example

Let me quote:

Our main thesis is that the Anthropocene can be described as an Entropocene, insofar as the contemporary period is above all characterized by a process of the massive increase of entropy in all its forms (physical, biological, informational).

Internation. Letter to Antonio Guterres

In 1945… Lotka showed that the production of knowledge is the condition of the struggle against entropy for this technical form of life that is human life.

Internation: General Introduction

The general implication is that we must organise to defeat entropy and that life is negantropic.

However, entropy is a measure of dispersal of energy. The more energy is dispersed or wasted, the more likely that we won’t have enough energy to fix things up as they fall apart or get stressed. Therefore we need to make energy usage as efficient as possible, with as little loss as possible. Something no one aims at when energy is plentiful.

Making energy usage efficient does not stop energy being dispersed and entropy increasing. It is not negative entropy, it is not demaking entropy or consuming entropy, it just tries to make energy dispersal as minimal as possible.

footnote

Schrodinger tries to clear up his problem, saying

The remarks on negative entropy have met with doubt and opposition from physicist colleagues. Let me say first, that if I had been catering for them alone I should have let the discussion turn on free energy instead.

What is life p 74

“Free energy” as I understand the term is the available energy, which can be extracted and directed by the application of energy. For example, it takes energy to find food, eat it and digest it. The ‘free energy’ of food, has to provide more energy that it takes to find it, eat it and digest it, for it to be useful. Similarly sunlight is free, but we have to use energy to take it and convert it to electricity or warm water or whatever..

He also says

And that we give off heat is not accidental, but essential. For this is precisely the manner in which we dispose of the surplus entropy we continually produce in our physical life process.

Digestion and the uses of food energy to power and repair the body, disperses energy. There are other things going on as well such as maintenance of the body between a small range of temperatures.

This seems largely because he wants a direct equality between disorder and entropy, rather than an indirect and complex connection