The Invention of Science, by David Wooten, is by far the best explanation of what science is and how it works. Although presented as a history of how science started, it is much, much more. You may lay aside your Popper and Kuhn, and indeed, bury the more recent philosophers of science and their misguided relativism, and indulge yourself in this joyous and entertaining account of the greatest breakthrough of all that emerged from the age of discovery.
The activity of science, as Wooten describes it, can be generalized as an example of the behavior that is sometimes called competitive-cooperation. Unlike cooperation and competition, considered as separate, and essentially opposite, modes of behavior, competitive-cooperation is the engine of growth that underlies civilization. In a nutshell, it consists of individuals cooperating to construct goods that are part of physical reality while competing for rewards that exist only in social reality (by way of example, a brick is part of physical reality while a ski club is part of social reality). Straight-up competition between individuals for rewards or plunder from physical reality is necessarily a zero-sum endeavour at best, and often results in diminishing returns. Physical resources are always limited in abundance thereby imposing strict limits on the growth of production (what we usually call economic growth). Cooperation, on the other hand, is often a positive-sum game, leading to a surplus of goods compared to what the individuals involved could have produced with no interactions at all. The problem comes from the need for coordination of individual action. Management is necessary, resulting in two separate classes of individuals as soon as the complexity of the endeavour surpasses that of the most trivial of tasks. For work that is unpleasant, coercion of the workers is also necessary, whether by carrot or stick. Competitive-cooperation melds the two by using rewards that exist only as social constructs (and therefore not subject to limits-to-growth) to drive competition between individuals, while the focus of that competitive drive is a cooperative venture to construct goods that exist in physical reality. Coordination is accomplished by directing individual actions through rewarding those actions that contribute to the greater project, eliminating the need for management. Coercion, too, is eliminated by giving rewards of greater value for work that is especially unpleasant. In the activity of science, the goods that are being constructed consist of discovered, reliable knowledge about physical reality itself, while the reward for discovery is prestige and the bestowing of honors on the discoverers.
Through this understanding of how science works, several mysterious aspects of the endeavour are easily understood. People have long argued over who was the first true scientist, and indeed, many people who pick up Wooten’s book will very likely be interested in who he identifies to fill that role. But Wooten instead insists that there can be no first scientist (though he does identify a first scientific experiment) because science is necessarily a collective endeavour; you might as well ask about the temperature of a single molecule. If this is the case, though, then why are honors bestowed upon individual scientists? Why craft ‘great man’ narratives around important discoveries, lionizing individuals for the work of a community? Although paradoxical, the mechanics of competitive-cooperation are such that individuals must be given social rewards even though the success is due to the cooperation of a collective. That is also why we so often see multiple, simultaneous breakthroughs among independent scientists with no communication channels connecting them. It is often remarked that some particular conceptual innovation was ‘in the air’ just prior to discovery. Again, this is how competitive-cooperation works: the cooperative aspect of science means that not just finished discoveries are communicated to the collective, but also all the groping thought processes and blind-alley experiments (though the former are disseminated through a formal process of publication while the latter are disseminated through the informal give-and-take discussions at conferences). Indeed, Wooten succeeds in not only giving us a magnificent history of the invention of science, but also a philosophy of science with great explanatory power.
Wooten begins by insisting that historians need to view history with hindsight (rejecting the misguided naysayers who heckle with claims of ‘whig history’), while at the same time realizing that we need to translate their language into ours. During times of great transformations, language is necessarily muddled as people grope toward understanding the changes that are overtaking them. Throughout the book, he is meticulous about tracing the origin and development of words and concepts in service of understanding what early scientists thought they were doing, and what we now understand them to have done.
Surprisingly, the idea of discovery itself only appears just prior to Columbus’ voyage to find a Western route to the Indies. Before about 1486, anyone talking about invention was referring to ancient discoveries (the Greeks did have the concept of discovery but the Romans discarded it and it lay dormant until the late 15th century). Truly world-changing discoveries from Medieval Europe, such as eyeglasses, mechanical clocks, and various water-powered machines, have no record of their invention, nor any narrative about their inventors. The task of Renaissance intellectuals was to recover lost knowledge, not to discover new knowledge. It is only with the adventure narratives that began to accompany the geographical discoveries of Portuguese mariners going around Africa that the idea of progress in human knowledge begins to take off. Then after Columbus discovers the new world, the granting of prestige to discoverers begins to supplement these narratives (and with Waldseemüller’s map, where the new world is named for Amerigo Vespucci rather than Columbus, we also see the beginning of misplace eponymy that continues to this day in science).
The accumulation of geographical knowledge drove a silent revolution in the understanding of the earth’s structure by philosophers. This was a process driven by experiential facts and resulted in the wholesale overturning of existing knowledge and the universal adoption of a new consensus model in the space of a few decades. The terraqueous globe model, though posited earlier, had no support at all in the 15th century. The prevailing view was of a small sphere of earth and a larger sphere of water, superimposed in various ways, all of which predicted that antipodes could not exists. There was a further belief that any land at the equator could not be habitable, but this was due to Aristotle, not models of the earth. Following the discovery of people living quite happily at the equator, and then Vespucci showing that antipodes did exist (to say nothing of Columbus’ discovery of the new world, unknown to Aristotle), the various two-sphere models were discarded in favour of the terraqueous globe.
From this account of falsification in action, Wooten then moves to the development of abstract models, especially mathematical models, of reality. Double entry bookkeeping is discussed, not in the usual manner of driving commercial activity, but rather as a process of abstraction: the transformation of all transactions into cash equivalents so that precise comparisons could be made. Later, the architect Brunelleschi travelled to Rome to measure buildings with classical architecture. He used geometry to convert the view from a single point into elevation drawings. At some later time, he realized that the inverse procedure was possible, to create perspective drawings by converging lines to a vanishing point. Alberti formalized the procedure mathematically so that geometry became a method for creating models of reality. With further developments of geometric methods, Brahe was able to show that heavenly bodies were very far away, laying waste to the notion of crystal spheres. Galileo famously turned the telescope (invented to allow terrestrial spying) to the heavens and found mountains on the moon, satellites orbiting Jupiter, and most significantly, a full set of phases for Venus—killing Ptolemaic astronomy in its tracks. The sub-lunar world was also modelled geometrically, leading to progress in cartography, navigation, ballistics, and fortification. Mathematical models produced reliable knowledge that became very useful to the Princes of Europe who were engaged in perpetual warfare over territory.
Even more surprising than the absence of a notion of discovery in the medieval world is the absence of facts, as we know them. The very idea that something has really occurred or is actually the case (something that does not need an agent) was invented between 1650 and 1700. The importance of facts is due to their not being true by definition, so they can be shown to be false, and more importantly, having survived a test for falsity, may be relied upon with more confidence. Wooten traces this history doggedly because once printing was invented, facts could be transferred from person to person without any degradation (books are an “immutable mobile” in Bruno Latour’s phrase). The testing of facts for reliability, then, becomes the keystone of the emerging science. Empirical experiments using a carefully designed procedure, with witnesses for verification, and published in print so that independent replication could be done, becomes the method for establishing matters of fact. Pascal’s Puy-de-Dome experiment is the first experiment that fulfills all the criteria needed for it to be called scientific (in our sense of science). Crucially, a community of scientists is needed before the first scientific experiment can occur, thus we cannot talk about a first scientist because the designation is a collective property. Also of prime importance is that although science is a social construct, the knowledge discovered by science is not a social construct; its reliability is independent of the rhetoric and persuasion of scientists. Wooten takes us through the development of the concepts of law, theory, hypothesis, and evidence as the structures around which scientific knowledge is constructed.
The relationship between technology and scientific knowledge is tackled by first looking at the development of the mechanical universe (every effect has a cause that is effected at the point of action; no spooky action-at-a-distance). Because the delay between conceptual innovation and technological innovation can be very long, historians of technology often discount the necessity of conceptual knowledge, primarily because it has become a commonplace by the time the technology is developed. In addition, a complete analytical framework for a technology will almost always come after the technology is developed, so technophiles will insist that clever tinkering, divorced from scientific knowledge, is the driver of innovation. Wooten is having none of it, though, and he masterfully guides us through the major technological developments of the industrial revolution, showing how scientific knowledge was absolutely essential for every innovation that occurred.
To bring the book to a close, Wooten recounts the pathway through which science was invented between 1572 and 1704, an event that has become invisible to us due to its astonishing success. Science has given us not just reliable knowledge about the world, and technology developed using that knowledge, but it has also given us intellectual tools (for example, probabilistic thinking) that have enormously expanded our ability to solve problems by manipulating ideas. This book is a masterpiece and should be read by everyone who has any interest in what science is.