Showing posts with label Karl Popper. Show all posts
Showing posts with label Karl Popper. Show all posts

2020-02-03

Book Review: "Michael Polanyi" by Mark T. Mitchell

I've recently read the book Michael Polanyi by Mark T. Mitchell. (As an aside, it may be worth noting that some listings of this book carry the subtitle The Art of Knowing, but the usage of this subtitle within the copy of the book I got was inconsistent.) The book gives a relatively brief summary of the life and times of the physical chemist-turned-economist/philosopher Michael Polanyi in the first chapter, and then goes into a little more detail about his philosophies on economics, politics, science, morality, knowledge, religion, and other things in the second through fourth chapters, concluding in the fifth chapter with a comparison of his philosophical views to those of his contemporaries along with a little discussion about the implications of Polanyi's views for the present day.

The book is fairly short, well-written, and engaging even for a layperson like myself. The overview of Polanyi's life is quite interesting, and as I am considering the next steps for my own career (more on that in a future post), I was particularly taken by the story of Polanyi's career change so late in life. The discussion of his philosophy avoids unexplained jargon and very heavy technical arguments, instead clearly laying things out in simple terms & examples, and I was surprised (mainly as I was previously unacquainted with Polanyi's work per se, even though I have already read works about some of the people who influenced him and whom he may have influenced) to see myself having come to similar conclusions as Polanyi even before reading this book. With respect to the latter point, though, I do have a few criticisms, which are attributable in parts to Polanyi or to the author of this book. For one, the appeals to common sense & simple examples lead to the situation where the defense of Polanyi's theory of tacit knowledge against charges of subjectivism or circularity (i.e. begging the question) isn't necessarily as tightly constructed or satisfying as possible; some of this comes from Polanyi's own quotes, while the remainder comes from the author (who seems to agree with and follow Polanyi's philosophy). For another, some of Polanyi's defenses of Christianity and critiques of evolutionary theory, with respect to their implications for constructing meaning out of human existence, aren't clear as to how broadly they should be applied in his more general framework, and it isn't clear whether this very opacity is in itself the fault of Polanyi versus the author of this book. Overall, I really enjoyed reading this book, and would recommend it to anyone looking for a nontechnical clear read about a sometimes-overlooked figure in Western philosophy of the 20th century. Follow the jump to read more detailed summaries per chapter and about my thoughts regarding the book as well as Polanyi's philosophy (warning: it may be quite roughly organized).

2019-09-02

Book Review: "The Invention of Science" by David Wootton

I've recently read the book The Invention of Science by David Wootton, after seeing it pop up on the SMBC comic reading list a few years ago. This book puts forth a comprehensive attempt to answer the question of when the modern practice of science can definitively said to be born, and comes up with the response that it was "invented" between 1572 and 1704 in Europe through a series of changes that can be viewed as a single transformation, on par (and in many contexts in tandem) with the Industrial Revolution. Far from being a quick overview, it provides a detailed history of the linguistic and philosophical developments surrounding various aspects of the scientific method, including the basic ideas of "facts", "experiments", "hypotheses", "theories", and similar terms by tracing through the experimental apparatuses early scientists constructed, the debates they and other philosophers had among their own groups and between each other, and the effects of new technologies like the printing press, steam engine, and others. Among its key aims is to comprehensively critique the strongest forms of relativism in the modern history of science (to which I will refer with phrases of the form "of relativism", because for a physicist like me the term "relativistic" means "of/pertaining to [Einstein's theory of special and general] relativity"), which posits things like science being an entirely social enterprise where theories become ascendant only through societal power structures and the power of persuasion while notions of the power of evidence are entirely misleading, and to a lesser extent to critique the strongest forms of realism, which contrarily posits that scientific theories are an exact reflection of reality. In opposition to these, the book argues that science as a whole can be said to objectively progress as new theories can both continue to properly explain evidence that old theories can while also explaining new evidence that old theories cannot adequately explain, and that scientific developments are path-dependent and do to some degree depend on cultural context.

The book is very well-written but, as I mentioned earlier, it is a significantly heavier (literally as well as philosophically) tome than a typical popular history of science. It deeply contextualizes a lot of different, seemingly disparate, aspects of the development of scientific research between 1572-1704 in Europe in view of linguistics, philosophy, religion, and interpersonal relationships. Given that I'm a layperson when it comes to philosophy, there were a lot of passages that I found difficult to follow even after multiple careful readings simply because I was unfamiliar with many of the people and texts quoted. For example, for a while when reading, I thought that the author's criticisms of Thomas Kuhn's notion of paradigm shifts (whose seminal work on the subject I've reviewed here) were in a general sense; it took me a while to realize that the criticisms were more specific to the context of the development of the scientific method as opposed to developments since then, and even after that I needed reassurance from the concluding section that this was indeed the author's intent. However, there were a lot of things that I appreciated learning from this book. Foremost among them is the idea that the notion of inevitable progress really only originated in the 16th century, and before that the dominant view of history was that it developed in cycles, so there really was no sense that anyone could discover things unknown to their predecessors and peers; this really made me better appreciate why the mentality of a glorious past that must be returned to is still so pervasive in circles outside of scientific fields. Plus, the argument that the voyage by Christopher Columbus to Hispaniola catalyzed this new notion of "discovery" in itself was new to me, and I was surprised by how compellingly it was argued. I also appreciated the explanation of the emergence of a linguistic distinction between "physics", whose practitioners are "physicists", and "physiology", whose practitioners are "physicians".

There are a few criticisms that I have from my perspective as a lay reader. The first is that the author spends a chapter discussing the emergence of a notion of "facts", and distinguishes different kinds of "facts" when discussing the building of scientific knowledge in order to argue against the claims of strong relativism that all scientific theories are ultimately equally acceptable. However, the presentation of these distinctions is quite muddled from the beginning, which not only harms the intelligibility of the arguments for settling science through "matters of fact", but gives an opening for arguments from relativism that all "facts" ultimately depend on the existence of a shared language and cultural context for interpretation. The second is that some of the arguments against even weaker forms of relativism (like Thomas Kuhn's ideas), suggesting that theories being underdetermined by the facts at hand means that any number of theories could be equally valid, seem somewhat weak. One particular example discussed is that once the terraqueous theory (that the Earth was composed of land and water in a single "sphere" as opposed to two "spheres") was established thanks to certain findings (like the European rediscovery of the American continents and consequently acknowledging the possible existence of antipodes on land), last-ditch alternative theories were already seen in their day to be problematic, which led to the swift and relatively uncontroversial abandonment of such alternatives. The problem with that example is that it conflates the inability of thinkers of that time to come up with a viable alternative with the lack of existence of a viable alternative, and the latter is a much stronger statement which isn't actually proved by that example. (As an aside: the way I see it, the construction of scientific theories is like optimizing a fit function to a set of values that are outputs for input points sampled in a very large high-dimensional space. Paradigm shifts occur when newly sampled input points produce output values that are very far from what existing fit functions predict, while new fit functions that can accurately predict values at existing points and these new points would look quite different in form. In this context, the possibility of other cultures or even sapient alien species developing entirely different scientific theories could be explained by sampling very different sets of points to begin with, due to very different experiences, and consequently coming up with very different-looking fit functions, with perhaps only a few common sample points where different theories come close to each other.) The third is that there isn't much discussion of other cultures outside of Europe, with the exception of Arabic writings on astronomy and other sciences, and the little discussion there is seems to be casually dismissive, glibly describing such societies as "hierarchical" rather than "egalitarian" without getting into the subtleties of those terms in context; initially, I gave the author the benefit of the doubt in wanting to keep the scope of the book focused, but considering how much was said about religious philosophy and linguistics, I think a fuller picture would really have benefited the book. Related to this, I would have liked to see a somewhat clearer discussion of the extent to which the emergence of the scientific method affected and was affected by shifts from church-focused hierarchical communal philosophy to individual-centered humanism; there was some of that, but there are probably other parts of the book where that relation could have been clearer. Finally, I got the sense that the writing and the message of the first few chapters as well as the last few chapters were fairly clear, but the arguments of the middle chapters were harder for me to follow in themselves and in the broader context of the book overall; perhaps each of the middle parts could have been a separate shorter book in a series, so that readers wouldn't feel compelled to read all of those parts in order, and the author could have felt more free to restructure and explain further as needed.

This was definitely an interesting read and was unlike the last several books that I've read given its deep look at the subtleties of European philosophy in the mid-2nd millennium. I wouldn't recommend it as a light jaunt through the historical development of science, but I would recommend it to those who want a deeper look at the various philosophical factors guiding its development.

2018-08-06

Book Review: "The Structure of Scientific Revolutions" by Thomas Kuhn

I've recently read the book The Structure of Scientific Revolutions by Thomas Kuhn. This is a classic treatise from 1962 expounding Kuhn's view of scientific progress not as cumulative and incremental but instead as comprising paradigms in each field and discipline which drive most scientific research while being subjected to drastic changes from time to time; this is the book that popularized the notions of scientific paradigms and shifts therein. It starts with a description of what "normal science" (in the sense of science comprising and being driven by existing paradigms) is, defining the notion of a "paradigm" in the context of science, and how people do science in that framework. It then moves onto the notion of a scientific crisis, and shows how that may or may not develop into a fully-fledged scientific revolution. Finally, it shows how new paradigms may take root and how scientific revolution may ultimately be resolved in one way or another.

While Kuhn did not perform serious sociological research for this treatise (though the book seemed to me like an informal sociological review of the scientific community at large), and while he later in life turned his attention more to fundamental questions of scientific philosophy, he was a historian of science and identified most strongly as that; I feel this may have helped shape this book into something far more clear and engaging for a layperson like myself than what I may have expected from a book about the philosophy of science, as the book is chock-full of relevant and easy to understand references to the history of science (though it may also have helped that Kuhn, having been a theoretical physicist before becoming a historian of science, focused almost exclusively on the historical development of theoretical frameworks in the physical sciences). Moreover, because this was meant as an extended essay, this book is not particularly long, though it is reasonably well-referenced with illuminating footnotes too; in fact, the chapters are called sections, as would befit an essay/treatise. One question to which I kept returning through the book was about how to distinguish between discoveries that answer open questions within a paradigm versus those which more fundamentally threaten the existence of such an established paradigm; Kuhn masterfully addresses the various aspects of this question in a clear progression over the course of the book, to the extent that I almost felt like he was speaking directly to me in order to answer my questions as I read the book. I do have a few criticisms of the book, though these should themselves be taken with a grain of salt and subjected to criticism too, as I am a layperson in the context of the philosophy of science; follow the jump to read those. Beyond that, though, I think this is a really interesting and valuable perspective on the practice of science at the level of groups/communities, and would be useful for anyone interested in how the sausage of science is made, discarded, and remade.

2018-05-07

Book Reviews: "An Introduction to the Thought of Karl Popper" by Roberta Corvi & "Philosophy and the Real World" by Bryan Magee

I've recently read two books about the life and philosophy of Karl Popper. One is An Introduction to the Thought of Karl Popper by Roberta Corvi (translated from Italian to English by Patrick Camiller, while the other is Philosophy and the Real World by Bryan Magee. Both have some similarities in form and structure. They are both relatively shorter books (under 200 pages, each in hardback form). They both devote a single chapter as an overview to Karl Popper's life, and then devote subsequent chapters to his philosophy of science, philosophy of politics, and the broader themes of his philosophy. Furthermore, they were both written during Popper's life, with some level of consultation with him.

As a layperson when it comes to philosophy, I found Corvi's book, which I read first, to be a bit of a struggle to understand. The prose used in the book is often unclear, and I especially found the first 30 pages to be so densely packed with jargon and assumed background on philosophy that I was tempted to put the book down at that point; thankfully, my persistence paid off, as I found the rest of the book to be progressively clearer. Additionally, there are some tonal shifts throughout the book that I found a bit odd; Corvi does not uniformly praise nor criticize Popper's philosophy, but while her criticism is generally clear, her praise merely restates his philosophy as if it were self-evident fact. I'm not sure if the abstruseness of Corvi's book is due to her own writing style and assumption of a more philosophically-educated audience, due to issues with the translation, or due to the translator's own deliberate choices in tackling the subject of Karl Popper. The book claims to be an accessible introduction to Popper's philosophy, but I'm not sure if that really means accessibility for lay readers (as opposed to philosophy students early in their careers).

By contrast, Magee's book, which I read second, has much more clear and accessible prose. In particular, there were a few misconceptions that I had about Popper's beliefs from Corvi's book that I felt Magee's book cleared up, such as the extent of Popper's rejection of Marxism and disdain for socialism as a political practice versus his belief in essentially social democratic ideals. This book is also shorter, and because Magee was a student of Popper, the narration of this book seems more self-consistent and intimate, reflecting Magee's emotional and ideological closeness to Popper, and it even includes a few points where he makes explicit mention of discussions with Popper; Corvi's book, in comparison, is much more dispassionate and disinterested. However, that intimacy in turn raises questions about the impartiality of Magee's narration. For example, Corvi spends a little time questioning the philosophical foundation of Popper's belief in indeterminism, while Magee completely sweeps this under the rug; this appears to be a broader trend, as Corvi does generally do a better job formulating her own and addressing other people's criticisms of Popper's philosophies.

Both of these books were written before or around the time of the end of the Cold War. This makes the political views espoused in the book somewhat dated; of course hindsight is 20/20, but that throws into especially stark relief the rather inductive nature of the arguments positing ever-increasing rationality and liberal democracy around the world. The arguments that the development of ideas, logic, technology, structures, and so on are indicative of human evolution seem similarly inductive, especially considering that these changes have happened over such shorter time scales compared to typical evolutionary changes observed in humans (over tens of thousands of years and more), and this may also be because understanding of evolution was less sophisticated at that time than it is now, though I'm not entirely sure of that considering that I'm not in the field of evolution. In any case, these books' ages show, and it isn't clear how much of the description of evolution and politics comes in each book from Popper himself versus each respective author's interpolation & interpretation; I'd be curious to see more modern books that address these recent issues. With these issues aside, overall, I think Corvi's book gives a fuller picture, but Magee's book is the clearer introduction for a philosophical layperson like myself.