L'utilitarisme té com a criteri bàsic aconseguir el màxim bé per al màxim nombre possible de persones. L'utilitarisme dóna molta importància a la recerca de la felicitat personal. Aquest llibre en descriu les tesis bàsiques i respon a les principals acusacions que ha rebut.

Ser modern és ser racionalista. Aquest llibre repassa amb detall les tesis de Descartes, la seva relació amb els contemporanis i les conseqüències de les seves teories.

A key aim in biology and psychology is to identify fundamental principles underpinning the behavior of animals, including humans. Analyses of human language and the behavior of a range of non-human animal species have provided evidence for a common pattern underlying diverse behavioral phenomena: Words follow Zipf's law of brevity (the tendency of more frequently used words to be shorter), and conformity to this general pattern has been seen in the behavior of a number of other animals. It has been (...) argued that the presence of this law is a sign of efficient coding in the information theoretic sense. However, no strong direct connection has been demonstrated between the law and compression, the information theoretic principle of minimizing the expected length of a code. Here, we show that minimizing the expected code length implies that the length of a word cannot increase as its frequency increases. Furthermore, we show that the mean code length or duration is significantly small in human language, and also in the behavior of other species in all cases where agreement with the law of brevity has been found. We argue that compression is a general principle of animal behavior that reflects selection for efficiency of coding. (shrink)

Biosemiosis is a process of choice-making between simultaneously alternative options. It is well-known that, when sufficiently young children encounter a new word, they tend to interpret it as pointing to a meaning that does not have a word yet in their lexicon rather than to a meaning that already has a word attached. In previous research, the strategy was shown to be optimal from an information theoretic standpoint. In that framework, interpretation is hypothesized to be driven by the minimization of (...) a cost function: the option of least communication cost is chosen. However, the information theoretic model employed in that research neither explains the weakening of that vocabulary learning bias in older children or polylinguals nor reproduces Zipf’s meaning-frequency law, namely the non-linear relationship between the number of meanings of a word and its frequency. Here we consider a generalization of the model that is channeled to reproduce that law. The analysis of the new model reveals regions of the phase space where the bias disappears consistently with the weakening or loss of the bias in older children or polylinguals. The model is abstract enough to support future research on other levels of life that are relevant to biosemiotics. In the deep learning era, the model is a transparent low-dimensional tool for future experimental research and illustrates the predictive power of a theoretical framework originally designed to shed light on the origins of Zipf’s rank-frequency law. (shrink)

Establecido lo que es el uso de razón, estudia ahora el momento en que el hombre llega a él y la obligación de orientar entonces su vida al bien con el deseo o propósito de llevarlo a la práctica. En los que han crecido y se han educado en un ambiente de fe en Dios como máximo bien, su obligación moral es ordenarse a Él y proponerse actuar conforme a sus mandamientos. En los que han nacido y vivido en ambientes (...) desconocedores de Dios, su obligación es la de orientarse al bien en conformidad con el bagaje de sus conocimientos. Le inquieta el tema: cómo en ese momento les queda, particularmente a los últimos, abierto el camino de la salvación y la vida eterna. (shrink)

In this paper I argue that Artificial Intelligence and the many data science methods associated with it, such as machine learning and large language models, are first and foremost epistemic technologies. In order to establish this claim, I first argue that epistemic technologies can be conceptually and practically distinguished from other technologies in virtue of what they are designed for, what they do and how they do it. I then proceed to show that unlike other kinds of technology (_including_ other (...) epistemic technologies) AI can be uniquely positioned as an epistemic technology in that it is primarily designed, developed and deployed to be used in _epistemic contexts_ such as inquiry, it is specifically designed, developed and deployed to manipulate _epistemic content_ such as data, _and_ it is designed, developed and deployed to do so particularly through _epistemic operations_ such as prediction and analysis. As has been shown in recent work in the philosophy and ethics of AI (Alvarado, AI and Ethics, 2022a), understanding AI as an epistemic technology will also have significant implications for important debates regarding our relationship to AI technologies. This paper includes a brief overview of such implications, particularly those pertaining to explainability, opacity, trust and even epistemic harms related to AI technologies. (shrink)

The relativist contends that one has a duty to do something if and only if one's society holds that one does. The subjectivist maintains that one has a duty to do something if and only if one believes that one does. The objectivist argues that men have objective duties which are sometimes independent of what either they or their societies believe they are. My object is to indicate what seem to be some obvious, Yet fatal, Objections to relativism and subjectivism, (...) And to show how objectivists can take account of certain of the insights of relativists and subjectivists. I seek to show that relativists and subjectivists misunderstand the import of their insights, And that it is because of this that they suppose that these insights provide support for relativism or subjectivism when in fact they do not, And can be, Indeed need to be, Incorporated into a sound objectivist position. (shrink)

The Qur’an has been transmitted as both a written text and an oral recital. This has led to the development of a reading tradition that permits numerous different vocalisations to be made upon the basic skeletal text of the established ʿUthmānī codex. Ibn al-Jazarī chose ten early readers whom he felt were most representative of this tradition and whose readings are treated as canonical up until this day. One of these, the Kufan linguist al-Kisāʾī has been characterised in the literature (...) as more focused on the grammar of the Qur’an than his reader peers. This article explores al-Kisāʾī’s process of ikhtiyār when deciding between various possible readings. The sample for analysis consists of Kisāʾī’s tafarrudāt, the approximately fifty cases in which his reading differs from the other nine readers. By comparing his reading with the comments of early scholars of Qur’anic linguistics, especially his near-contemporary al-Farrāʾ, it is possible to construct a typology of the suspected principal reasons for al-Kisāʾī’s tafarrudāt. Not only are many of these based on grammatical preferences, but they demonstrate a significant degree of consistency. Furthermore, analysis of a cluster of readings with implications for the interpretation of the sharīʿa provides evidence for a subtle exegetical dimension to al-Kisāʾī’s work as a reader-grammarian. (shrink)