The no-miracles argument for realism and the pessimistic meta-induction for anti-realism pull in opposite directions. Structural Realism---the position that the mathematical structure of mature science reflects reality---relieves this tension.

SummaryenThe main argument for scientific realism is that our present theories in science are so successful empirically that they can't have got that way by chance - instead they must somehow have latched onto the blueprint of the universe. The main argument against scientific realism is that there have been enormously successful theories which were once accepted but are now regarded as false. The central question addressed in this paper is whether there is some reasonable way to have the best (...) of both worlds: to give the argument from scientific revolutions its full weight and yet still adopt some sort of realist attitude towards presently accepted theories in physics and elsewhere. I argue that there is such a way - through structural realism, a position adopted by Poincare, and here elaborated and defended. (shrink)

In this paper, the elaboration of the concept of practical realist philosophy of science which began in the author's previous papers is continued. It is argued that practical realism is opposed to standard scientific realism, on the one hand, and antirealism, on the other. Standard scientific realism is challengeable due to its abstract character, as being isolated from practice. It is based on a metaphysical-ontological presupposition which raises the problem of the God's Eye point of view (as it was called (...) by Hilary Putnam). Joseph Rouse's conception of science as practice, Sami Pihlström's pragmatic realism, and even Ilkka Niiniluoto's critical scientific realism are interpreted as practical realist conceptions. Pihlström suggests that the contemporary scientific realist should be prepared to accept the pragmatically naturalized Kantian transcendental perspective on realism. It is argued, however, that this realistically naturalized Kantianism can be nothing more than practical realism, as originated by Karl Marx. (shrink)

This paper seeks to show that the turn toward local scientific practices in the philosophy of science is not a turn away from transcendental investigations. On the contrary, a pragmatist approach can very well be (re)connected with Kantian transcendental examination of the necessary conditions for the possibility of scientific representation and cognition, insofar as the a priori conditions that transcendental philosophy of science examines are understood as historically relative and thus potentially changing. The issue of scientific realism will be considered (...) from this perspective, with special emphasis on Thomas Kuhn's conception of paradigms as frameworks making truth-valued scientific statements possible and on Charles S. Peirce's realism about "real generals". (shrink)

Nonclarity around the understandingof the concept of chaos has caused someconfusion in the contemporary natural science.For instance, not making a clear distinctionbetween the deterministic and quantum chaos hasmade it impossible to evaluate the approach ofIlya Prigogine in an appropriate way. It isshown that Jean Bricmont has missed the targetin his critique of I. Prigogine's ideas, as thelatter has concentrated his interest on systemsconsisting of infinite (arbitrarily large)number of particles in incessant mutualimpact, the former on systems that have afinite (not necessarily (...) large, althoughsometimes very large) number of particles,which move freely of any mutual impact orparticipate only in transient interaction. Thedifference may sometimes be quite crucial. Itis also suggested that if we consider theirreversibility as the basic element ofdescription of physical world, the world oftrajectories and wave functions cannot beresearched apart from this real irreversibility. (shrink)

Practical realism is focused on the problem of how science really works. In the case of physics and chemistry, experiment is the centrepiece of scientific practice. The rapid development of contemporary natural science does not leave the experiment unaffected. The classical experiment is normally applied only to systems that can be considered structurally stable, repeatability being the key feature. After the introduction of the theoretical basis of irreversibility by Ilya Prigogine the essence of the experiment changed. The strict requirement of (...) repeatability has to be dropped. It will be discussed, whether the change is big enough for calling it revolutionary. There are means to update the understanding of the experiment by applying the experimental settings. The material experiment will probably be with us forever but its position on the scientific landscape will be shifted. (shrink)

The many-faced relationship between chemistry and physics is one of the most discussed topics in the philosophy of chemistry. In his recent book Reducing Chemistry to Physics. Limits, Models, Consequences, Hinne Hettema conceives this relationship as a reduction link, and devotes his work to defend this position on the basis of a “naturalized” concept of reduction. In the present paper I critically review three kinds of issues stemming from Hettema’s argumentation: philosophical, scientific and methodological.

In this paper I reply to Olimpia Lombardi’s comment on my recent book Reducing Chemistry to Physics: Limits, Models, Consequences.

Scientific realism asserts that the methods of science, combined with the intellectual powers of human beings can give us reliable knowledge of states of the world beyond the limits of perception. Among the varieties of realism, policy realism is based on the principle that taking plausible theories to be putative descriptions of actual states of affairs is the best way to design experiments and to advance our knowledge. We carve out the umwelt from the welt by the use of our (...) instruments and apparatus. The key procedure in science has been and still is the invention and testing of models---plausibility and empirical adequacy are the marks of a theory based on a model capable of supporting policy realism. (shrink)

Mathematics plays an inordinate role in the work of many of famous Western philosophers, from the time of Plato, through Husserl and Wittgenstein, and even to the present. Why? This paper points to the experience of learning or making mathematics, with an emphasis on proof. It distinguishes two sources of the perennial impact of mathematics on philosophy. They are classified as Ancient and Enlightenment. Plato is emblematic of the former, and Kant of the latter. The Ancient fascination arises from the (...) sense that mathematics explores something ‘out there’. This is illustrated by recent discussions by distinguished contemporary mathematicians. The Enlightenment strand often uses Kant's argot: ‘absolute necessity’, ‘apodictic certainty’ and ‘a priori’ judgement or knowledge. The experience of being compelled by proof, the sense that something must be true, that a result is certain, generates the philosophy. It also creates the illusion that mathematics is certain. Kant's leading question, ‘How is pure mathematics possible?’, is easily misunderstood because the modern distinction between pure and applied is an artefact of the 19th century. As Russell put it, the issue is to explain ‘the apparent power of anticipating facts about things of which we have no experience’. More generally the question is, how is it that pure mathematics is so rich in applications? Some six types of application are distinguished, each of which engenders its own philosophical problems which are descendants of the Enlightenment, and which differ from those descended from the Ancient strand. (shrink)

This classic work in the philosophy of physical science is an incisive and readable account of the scientific method. Pierre Duhem was one of the great figures in French science, a devoted teacher, and a distinguished scholar of the history and philosophy of science. This book represents his most mature thought on a wide range of topics.

[Time, the fundamental dimension of our existence, has fascinated artists, philosophers, and scientists of every culture and every century. All of us can remember a moment as a child when time became a personal reality, when we realized what a "year" was, or asked ourselves when "now" happened. Common sense says time moves forward, never backward, from cradle to grave. Nevertheless, Einstein said that time is an illusion. Nature's laws, as he and Newton defined them, describe a timeless, deterministic universe (...) within which we can make predictions with complete certainty. In effect, these great physicists contended that time is reversible and thus meaningless. (shrink)

Cutting God in Half argues that, in order to tackle climate change, world poverty, extinction of species and our other global problems rather better than we are doing at present we need to bring about a revolution in science, and in academia more generally. We need to put our problems of living – personal, social, global – at the heart of the academic enterprise. How our human world, imbued with meaning and value, can exist and best flourish embedded in the (...) physical universe is, the book argues, our basic problem. It is our fundamental philosophical problem, our fundamental problem of knowledge and understanding, and our fundamental practical problem of living. It is this problem that we fail, at present, to recognize as fundamental – to our cost. It can be understood to arise as a result of cutting God in half – severing the God of Cosmic Power from the God of Value. The first is Einstein’s God, the underlying unity in the physical universe that determines how events occur. The second is what is of most value associated with human life – and sentient life more generally. Having cut God in half in this way, the problem then becomes to see how the two halves can be put together again. This book tackles outstanding aspects of this problem, and in doing so throws out original ideas about science, education, religion, evolutionary theory, free will, quantum theory, and how we should go about tackling our impending global crises. It transpires that bringing our basic problem into sharp focus has revolutionary implications. It becomes clear how and why many aspects of our social and cultural world urgently need to be transformed. Cutting God in Half is written in a lively, accessible style, and ought to be essential reading for anyone concerned about ultimate questions – the nature of the universe, the meaning of life, the future of humanity. (shrink)