janeiro 09, 2024
janeiro 05, 2024
Unmixing the unmixable
Por João Neto às 08:34
janeiro 03, 2024
Analogy Rot
Por João Neto às 09:30
dezembro 28, 2023
Out of the Boxes
Por João Neto às 15:50
dezembro 21, 2023
Uniforms
Por João Neto às 09:23
dezembro 14, 2023
Science vs. Scientists
Por João Neto às 09:21
dezembro 10, 2023
Mapping
No map represents all of its intended territory [...] Every map is at least a map of the map-maker (his assumptions, world-view...)
**
A map is not the territory it represents, but, if correct, it has a similar structure to the territory, which accounts for its usefulness. If the map could be ideally correct, it would include, in a reduced scale, the map of the map; the map of the map of the map; and so on, endlessly, a fact first noticed by [Josiah] Royce. If we reflect upon our languages, we find that at best they must be considered only as maps. A word is not the object it represents; and languages exhibit also this peculiar self-reflexiveness, that we can analyze languages by linguistic means.
Por João Neto às 18:43
dezembro 06, 2023
Intelligence and Wisdom
Por João Neto às 09:18
novembro 30, 2023
Language Corrections
Essentially PC [Politic Correctness] is a correction from language that developed in an oppressive context and achieved mainstream usage, Doublespeak must be corrected in order to understand what is really being said. Both concepts can be said to use euphemism as their mechanism, but there's an important distinction. PC uses value neutral terms to replace inherently and unfairly derogatory ones. Doublespeak uses ironic terms to hide their motives and cynically cast them as the opposite. If I speak of sex workers rather than "whores" it is not because I am trying to hide any truth about them. It is that the "acceptable" term holds no deeper truth and only insult. If I speak of "creative bookkeeping" rather than theft, I am trying to hide or minimize guilt. @absurdistwords
Por João Neto às 09:08
novembro 23, 2023
The Razor
Por João Neto às 09:04
novembro 16, 2023
Reifying Ghosts
Belief in the existence of 'stochastic processes' in the real world; i.e. that the property of being 'stochastic' rather than 'deterministic' is a real physical property of a process, that exists independently of human information, is another example of the mind projection fallacy: attributing one's own ignorance to Nature instead. The current literature of probability theory is full of claims to the effect that a 'Gaussian random process' is fully determined by its first and second moments. If it were made clear that this is only the defining property for an abstract mathematical model, there could be no objection to this; but it is always presented in verbiage that implies that one is describing an objectively true property of a real physical process. To one who believes such a thing literally, there could be no motivation to investigate the causes more deeply than noting the first and second moments, and so the real processes at work might never be discovered. (p.506) Probability Theory, The Logic of Science, E.T.Jaynes
Por João Neto às 09:02
novembro 09, 2023
scientific discovery is not a one-step process
To counter this universal tendency of the untrained mind to see causal relations and trends where none exist, responsible science requires a very skeptical attitude, which demands cogent evidence for an effect; particularly one which has captured the popular imagination. Thus we can easily understand and sympathize with the orthodox conservatism in accepting new effects. There is another side to this; skepticism can be carried too far. The orthodox bias against a real effect does help to hold irresponsibility in check, but today it is also preventing recognition of effects that are real and important.
The history of science offers many examples of important discoveries that had their origin in the perception of someone who saw a small unexpected thing in his data, that an orthodox significance test would have dismissed as a random error. Jeffreys (1939, p. 321) notes that there has never been a time in the history of gravitational theory when an orthodox significance test, which takes no note of alternatives, would not have rejected Newton's law and left us with no law at all. Nevertheless, Newton's law did lead to constant improvements in the accuracy of our accounting of the motions of the moon and planets for centuries, and it was only when an alternative (Einstein's law) had been stated fully enough to make very accurate known predictions of its own that a rational person could have thought of abandoning Newton's law. The discovery of argon by Lord Rayleigh and of cosmic rays by Victor Hess are examples that come to mind immediately. Of course, they did not jump to sweeping conclusions from a single observation, as do the disaster-mongers; rather, they used the single surprising observation to motivate a careful investigation that culminated in overwhelming evidence for the new phenomenon.
It is fortunate that physicists and astronomers do not, in practice, use orthodox significance tests; their own innate common sense is a safer and more powerful reasoning tool. In other fields we must wonder how many important discoveries, particularly in medicine, have been prevented by editorial policies which refuse to publish that necessary first evidence for some effect, because the one data set that the researcher was able to obtain did not quite achieve an arbitrarily imposed significance level in an orthodox test. This could well defeat the whole purpose of scientific publication; for the cumulative evidence of three or four such data sets might have yielded overwhelming evidence for the effect. Yet this evidence may never be found unless the first data set can manage to get published. How can editors recognize that scientific discovery is not a one-step process, but a many step one, without thereby releasing a new avalanche of irresponsible, sensational publicity seekers? The problem is genuinely difficult, and we do not pretend to know the full answer. (p.504ff) Probability Theory, The Logic of Science, E.T.Jaynes
Por João Neto às 08:57
novembro 01, 2023
Perennial Madness
Por João Neto às 10:00
outubro 26, 2023
the pull and push of ethical systems
Intuitively, there are two basic desiderata for a system of ethics:
- that the system prescribes behaving well toward other people, or prescribes behaving with respect for certain principles; and
- that the system provides a rationally compelling reason to behave as it prescribes.
Por João Neto às 09:00
outubro 19, 2023
the switch cannot flip itself
Por João Neto às 08:05
outubro 15, 2023
Sunk costs
No matter how far you've gone down the wrong road, turn back. -- Turkish proverb
Por João Neto às 16:03
outubro 11, 2023
Models and Truth
Por João Neto às 08:00
outubro 06, 2023
Not always a lapalissade
Por João Neto às 15:56
outubro 05, 2023
Epistemological short-circuits
Por João Neto às 19:08
julho 21, 2023
the uninsurable future
In Limits
to Growth, the groundbreaking study of future resource and
capital flows, the authors noted that what will ultimately halt growth is
not lack of resources, but the dedication of all investable capital to maintaining
the existing system. This will leave no capital for expanding the
size of the economy. Rising insurance and rebuilding costs [from climate change, from aggregate infrastructure complexity] are becoming a
major destination for capital that would otherwise go towards producing
economic growth. This is moving us ever closer to outcome
suggested by the Limits to Growth researchers. -- Climate change and the uninsurable future Kurt Cobb
Por João Neto às 16:50
junho 30, 2023
As soon as we die, we enter into fiction
Evidence is always partial. Facts are not truth, though they are part of it – information is not knowledge. And history is not the past – it is the method we have evolved of organising our ignorance of the past. It’s the record of what’s left on the record. It’s the plan of the positions taken, when we to stop the dance to note them down. It’s what’s left in the sieve when the centuries have run through it – a few stones, scraps of writing, scraps of cloth. It is no more “the past” than a birth certificate is a birth, or a script is a performance, or a map is a journey. It is the multiplication of the evidence of fallible and biased witnesses, combined with incomplete accounts of actions not fully understood by the people who performed them. It’s no more than the best we can do, and often it falls short of that. -- why I became a historical novelist Hilary Mantel
Por João Neto às 10:01
junho 30, 2022
julho 11, 2021
Biological Causes
Modern biology is characterized by a number of ideological prejudices that shape the form of its explanations and the way its researches are carried out. One of those major prejudices is concerned with the nature of causes. Generally one looks for the cause of an effect, or even if there are a number of causes allowed, one supposes that there is a major cause and the others are only subsidiary. And in any case, these causes are separated from each other, studied independently, and manipulated and interfered with in an independent way. Moreover, these causes are usually seen to be at an individual level, the individual gene or the defective organ or an individual human being who is the focus of internal biological causes and external causes from an autonomous nature.
This view of causes is nowhere more evident than in our theories of health and disease. Any textbook of medicine will tell us that the cause of tuberculosis is the tubercle bacillus, which gives us the disease when it infects us. Modern scientific medicine tells us that the reason we no longer die of infectious diseases is that scientific medicine, with its antibiotics, chemical agents, and high-technology methods of caring for the sick, has defeated the insidious bacterium. What is the cause of cancer? The cause is the unrestricted growth of cells. That runaway growth, in turn, is a consequence of the failure of certain genes to regulate cell division. So we get cancer because our genes are not doing their business. It used to be that people thought that viruses were a major cause of cancer, and a great deal of money and time has been spent looking for the viral causes of cancer in humans without success. Biology has moved on from the time when viruses were all the rage to a time when genes are much more trendy.
Alternatively, there are environmental insult theories of the causes of cancer. Cancers are caused, we are told, by asbestos or by PVC or by a host of natural chemicals over which we have no control, and although they are present in very low concentrations, we are exposed to them over our whole lives. So, just as we will avoid dying from tuberculosis by dealing with the bug that causes it, so we will avoid dying from cancer by getting rid of particularly nasty chemicals in the environment. It is certainly; true that one cannot get tuberculosis without a tubercle bacillus, and the evidence is quite compelling that one cannot get the cancer mesothelioma without having ingested asbestos or related compounds. But that is not the same as saying that the cause of tuberculosis is the tubercle bacillus and the cause of mesothelioma is asbestos. What are the consequences for our health of thinking in this way? Suppose we note that tuberculosis was a disease extremely common in the sweatshops and miserable factories of the nineteenth century, whereas tuberculosis rates were much lower among country people and in the upper classes. Then we might be justified in claiming that the cause of tuberculosis is unregulated industrial capitalism, and if we did away with that system of social organization, we would not need to worry about the tubercle bacillus. When we look at the history of health and disease in modern Europe, that explanation makes at least as good sense as blaming the poor bacterium. -- Biology as Ideology, Richard Lewontin
Por João Neto às 16:40
maio 24, 2021
Dogmas Everywhere
We're all familiar with prudishness as it applies to sexual ethics: the prude thinks certain sex acts are immoral, even between happily consenting adults. They also hold that sex work is inherently degrading, and that others should not be allowed to offer monetary compensation in exchange for one's sexual labour. The prude is not willing to tolerate others engaging in consensual and mutually beneficial exchanges in this arena if they don't stem from what the prude regards as the "right" motivations and take place within "approved" institutional arrangements (e.g. marriage). It's a deeply illiberal perspective that has thankfully fallen out of favour in recent decades. We may, of course, have reasonable concerns about the exploitation of sex workers in practice. But it's increasingly recognized that the best response to such practical concerns is to improve the options available to those in desperate circumstances, not to deprive them of (what they evidently regard as) their current best option. So I think it's fair to say that liberals have won out over sexual prudes in our current cultural milieu.
Sadly, the reverse appears true within the arena of research ethics. Research prudes think that certain kinds of medical research (e.g. involving voluntary infection) are unethical, even when all involved are happily consenting adults. They disapprove of offering monetary compensation to research participants, to make participation worth one's while when it otherwise would not be. They are not willing to tolerate others' engaging in consensual and mutually beneficial research arrangements if participation doesn't stem from what the research prude regards as the "right" (i.e. non-financial) motivations. It's a deeply illiberal view that unfortunately still predominates, with cultural bastions like the New York Times routinely dismissing controversial ("queer") research possibilities as "unethical", without argument. We may, of course, have reasonable concerns about the exploitation of research participants in practice. But it's depressing how hastily people assume that the best response to such concerns is to paternalistically deprive others of an option that they might well have reasonably preferred over their available alternatives.
Perhaps the most important difference between the two arenas is that the research prude's illiberalism is vastly more harmful. Medical research has immense positive externalities. So preventing it has immense negative externalities. You're not just harming the would-be research participants (not to mention undermining their autonomy), you're also harming all those who end up suffering from medical conditions that could have been cured or prevented had the research gone ahead. Missed opportunities are rarely salient, and so do not provoke the outrage that they truly deserve. But on any reasonable estimate, the death toll of research prudishness is surely monstrous. -- Against Prudish Research Ethics, Richard Y Chappell
Por João Neto às 10:00
maio 17, 2021
Bullshit Jobs
Would-be capitalists were not granted the right to create limited-liability corporations unless they could prove doing so would constitute a clear and incontestable "public benefit" (in other words, the notion of social value not only existed but was inscribed in law) [...] much of this anticapitalist feeling was justified on religious grounds; popular Protestantism, drawing on its Puritan roots, not only celebrated work, but embraced the belief that, as my fellow anthropologists Dimitra Doukas and Paul Durrenberger have put it, "work was a sacred duty and a claim to moral and political superiority over the idle rich" [...] work was both a value in itself and the only real producer of value.
In the immediate wake of the Civil War all this began to change with the first stirrings of large-scale bureaucratic, corporate capitalism. The "Robber Barons," as the new tycoons came to be called, were at first met (as the name given them implies) with extraordinary hostility. But by the 1890s they embarked on an intellectual counteroffensive [...] The promulgation of consumerism also coincided with the beginnings of the managerial revolution, which was, especially at first, largely an attack on popular knowledge. Where once hoopers and wainwrights and seamstresses saw themselves as heirs to a proud tradition, each with its secret knowledge, the new bureaucratically organized corporations and their "scientific management" sought as far as possible to literally turn workers into extensions of the machinery, their every move predetermined by someone else.
Why was this campaign so successful? Because it cannot be denied that, within a generation, "producerism" had given way to "consumerism," the "source of status," as Harry Braverman put it, was "no longer the ability to make things but simply the ability to purchase them", and the labor theory of value—which had, meanwhile, been knocked out of economic theory by the "marginal revolution"—had so fallen away from popular common sense that nowadays, only graduate students or small circles of revolutionary Marxist theorists are likely to have heard of it. Nowadays, if one speaks of "wealth producers," people will automatically assume one is referring not to workers but to capitalists.
This was a monumental shift in popular consciousness. What made it possible? It seems to me that the main reason lies in a flaw in the original labor theory of value itself. This was its focus on "production" [...] which was always conceived primarily as male work — as a matter of making and building things, or perhaps coaxing them from the soil, while for women "labor" was seen primarily and emblematically as a matter of producing babies. Most real women’s labor disappeared from the conversation [...] "Caring labor" is generally seen as work directed at other people, and it always involves a certain labor of interpretation, empathy, and understanding. To some degree, one might argue that this is not really work at all, it’s just life, or life lived properly—humans are naturally empathetic creatures, and to communicate with one another at all, we must constantly cast ourselves imaginatively into each other’s shoes and try to understand what others are think ing and feeling, which usually means caring about them at least a little—but it very much becomes work when all the empathy and imaginative identification is on one side. The key to caring labor as a commodity is not that some people care but that others don’t; that those paying for "services" (note how the old feudal term is still retained) feel no need to engage in interpretive labor themselves.
[...] as many feminist economists have pointed out, all labor can be seen as caring labor, since even if one builds a bridge, it’s ultimately because one cares about people who might wish to cross the river. As the examples I cited at the time make clear, people do really think in these terms when they reflect on the "social value" of their jobs.
Por João Neto às 16:45
outubro 20, 2020
The THOG Problem
Image: Wikimedia Commons
You are shown four symbols
- a black square
- a white square
- a black circle
- a white circle
and told by the experimenter "I have picked one colour (black or
white) and one shape (square or circle). A symbol that possesses exactly
one of the properties I have picked, is called a THOG. The black circle
is a THOG. For each of the other symbols, are they a) definitely a
THOG, b) undecidable, or c) definitely not a THOG?" wikipedia (also cf. Futility Closet)
Por João Neto às 15:57
outubro 13, 2020
Cromwell
'Do you think I am saved?' he says. 'I am covered in lamp black and my hands smell of coin, and when I see myself in a glass I see grime – I suppose that is the beginning of wisdom? About my fallen state, I have no choice but agree. I must meddle with matters that corrupt – it is my office. In the golden age the earth yielded all we required, but now we must dig for it, quarry it, blast it, we must drive the world, we must gear and grind it, roll and hammer and pulp it. There must be dinners cooked, Rob. There must be slates chalked, and ink set to page, and money made and bargains struck, and we must give the poor the means to work and eat.' -- The Mirror and the Light, Hillary Mantel
Por João Neto às 11:08
outubro 06, 2020
Small Telescopes
It is generally very difficult to prove that something does not exist; it is considerably easier to show that a tool is inadequate for studying that something. With a small-telescopes approach, instead of arriving at the conclusion that a theoretically interesting effect does not seem to exist, we arrive at the conclusion that the original evidence suggesting a theoretically interesting effect exists does not seem to be adequate. -- Uri Simonsohn
Por João Neto às 08:15
setembro 11, 2020
My Time
Por João Neto às 16:28
fevereiro 26, 2020
Malthus
Por João Neto às 13:53
