This article provides the foundation for a new predictive theory of animal learning that is based upon a simple logical model. The knowledge of experimental subjects at a given time is described using logical equations. These logical equations are then used to predict a subject’s response when presented with a known or a previously unknown situation. This new theory suc- cessfully anticipates phenomena that existing theories predict, as well as phenomena that they cannot. It provides a theoretical account for phenomena (...) that are beyond the domain of existing models, such as extinction and the detection of novelty, from which “external inhibition” can be explained. Examples of the methods applied to make predictions are given using previously published results. The present theory proposes a new way to envision the minimal functions of the nervous system, and provides possible new insights into the way that brains ultimately create and use knowledge about the world. (shrink)

Ecological sciences have informed environmental ethics from its inception as a scholarly pursuit in the 1970s-so much so that we now have ecological ethics, Deep Ecology, and ecofeminism. Throughout the 20th century, however, most ecologists remained enthralled by the myth that science is value-free. Closer study of science by philosophers reveals that metaphors are inescapable and cognitively indispensable to science, but that metaphors are value-laden. As we confront the enormous challenges of the 21st century-the prospect of a 6th mass (...) class='Hi'>extinction, acidifying oceans, rising sea level, and global warming-ecologists can no longer remain aloof from public discourse about what actions to take to address these problems. And that means that 21st century ecologists understand that right action is guided by ethics. However, integration of ethical ideas into academic curricula and ecologists' research agendas is still meager. Aldo Leopold, 1947 President of the Ecological Society of America, keenly understood that latent in ecological sciences is an organizing worldview, with implications for reordering societal values and expanding ethics to embrace "soils, waters, plants, and animals, or collectively: the land." Going beyond Leopold's land ethic, contemporary environmental ethics includes eco-social justice and the realization that as important as biodiversity is cultural diversity, inter-cultural, inter-institutional, and international collaboration requiring a novel approach known as biocultural conservation. Right action in confronting the challenges of the 21st century requires science and ethics to be seamlessly integrated. Contemporary science proposes the concept of the inclusive ecosystem that recognizes humans as components. In this book, this "inclusive conviction is endorsed, fortunately, by over forty contributors sharing their accounts, of living well in place, combining nature and culture, residing on landscapes: biocultural ethics" (Holmes Rolston, III). (shrink)

_Vortex/t _undertakes a hermeneutical exploration of symbolic turbulence in many canonical works of literature and philosophy. Charles Minahen's approach is diachronic to the degree that manifestations of the symbol are addressed chronologically, but his aim is not to establish a historical linking of cause and effect, even if such connections do appear. Rather, a synchrony of the symbol is reconstructed that places each discrete example of it in a vibrant intertext of patent and latent meanings. Symbolic turbulence first emerges (...) in ancient "whirls" that display a spiral, spiro-helical, or vertical configuration and usually have cosmic or religious significance. The first significant textual examples of vertical symbolism occur in the Boulak Papyrus, the Bible, and _The Odyssey_, where the destructive connotations of the symbol stand out. For the philosophers and poets of the ancient classical period, including certain Pre-Socrates, Plato, Epicurus, and Lucretius, the vortex is a universal structuring principle, although the underlying causes vary. For Dante, the emphasis is no longer on the dynamic cosmogonic role of the whirl, but on the gradations inherent in the vertical structure itself. Descartes and Blake associated the symbol with the transcendence of a mystical vision, which involves, for the latter, an epiphanal breakthrough. In Poe, the maelstrom excites conflicting feelings of horror in the face of death and curiosity about the "novel" beyond. Rimbaud develops Blake's and Poe's fascination with a transcendent vision, but for Mallarme, the vortex-symbol is Poesque in the more negative way. Not only is it a threatening destructive force, it is the specter of death itself, relentlessly drawing the shipwrecked mariner to ultimate extinction and nonentity. By analyzing, comparing, and contrasting these salient examples of vertical symbolism, _Vortex/t _attempts to uncover and explore the dynamics of emerging and receding meanings that constitute the paradigm's complexity. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Reviewed by:Mapping Beyond Measure: Art, Cartography, and the Space of Global Modernity by Simon FerdinandDavid TooheyMapping Beyond Measure: Art, Cartography, and the Space of Global Modernity BY SIMON FERDINAND Lincoln: University of Nebraska Press, 2019Mapping Beyond Measure is a geographical and theoretical critique of map art and the tradition of modern mapmaking. The book focuses in depth on a few related examples of map art and departs from critical (...) theory and post-Marxist readings of space. Simon Ferdinand emphasizes fine art and art-film as appropriate counterweights to the authoritarian calculation in modern cartography and, unexpectedly, map art’s critique of mapmaking.Mapping Beyond Measure follows the well-trodden path of critiquing a medium, mapping, and map art as irredeemably authoritarian.1 Situated in this approach, Ferdinand argues that map art reproduces modernist cartography’s assumptions even while critiquing mapping. Aiming to subvert this shortcoming, Ferdinand explores Peter Greenway’s semi-abstract map art films that do not prioritize science over artists. Greenway’s films, especially A Walk Through H, are shown as being as close to an idea of mapping beyond calculation as possible. Indeed, for Ferdinand, Greenway’s map art films are an improvement on “postmodern” theorists.Mapping Beyond Measure explores a small, though logically (and practically) related group of map artists. The first three chapters explore differing approaches to map art, from Soviet painting that unintentionally [End Page 126] heralds globalization and map art’s latent desires to dominate the world, to more contemporary map art about looming societal collapse through the death of nature and mass casualties from aerial bombardment of cities. The following two chapters focus on how mapping creates nation-states. These chapters elucidate the tragic inability of map artists to escape globalization and calculation, the latter exasperated by G.I.S. techniques. These map artists serve as an ensemble that spotlights what, to Ferdinand, are inevitable difficulties that ethical practitioners of map art face in escaping the pitfalls of calculation in mainstream mapping.In chapter 6 Ferdinand explains how Greenway’s film A Walk Through H gets as close as possible to challenging map art through semi-abstract, two-dimensional additions to maps and using movie cameras to create an illusion of movement. Thus, the hierarchy of scientists over artists is partially dismantled. Indeed, Ferdinand lauds Greenway for creating alternatives to established political theorists. Interestingly, Ferdinand replaces ontology with the concept of “chorein” suggesting a more fluid conception of mapping that is not available in theories of space or cartographic practices of calculation. Nonetheless, compared to one of the articles referenced, Ferdinand downplays the destructive nature of chorein as a militaristic, colonial use of maritime space to emphasize its creative potential.2Ferdinand’s examples are primarily Eurocentric, even, surprisingly, in the exception: his focus on Japanese map artist Satomi Matoba. Here Ferdinand departs from Eurocentric examples only to focus on Japan—the most privileged nation-state in Asia. Even in this focus on Japan, which also includes Hawai‘i, Ferdinand does not depart from a frame familiar to Europe: World War II. Indeed, the discussion of Pearl Harbor (a U.S. military base) focuses on U.S. foreign policy, not on Hawai‘i. This thematic choice is relevant to other map artists in Ferdinand’s book. Ferdinand’s critique of calculability is based mainly on the consequences of Nazism, as theorized by Stuart Elden. However, Ferdinand’s theoretical interventions on uneven development in maps and map art would have been more substantial with the addition of detailed, localized, narrative accounts of violence suffered by non-white populations in Hiroshima, Nagasaki, and various European cities. Instead, we get an anonymous logic of maps that uses the idea of the past and potential [End Page 127] future destruction of cities to assume that everyone suffered to the same extent in World War II.While I am reluctant to criticize a book for not offering a solution to what it critiques, to a certain extent, the solution offered by Ferdinand contradicts his normative critique of calculability. In exploring Alison Hildreth’s map art, Ferdinand praises nuanced, temporally layered artistic explorations of ecological destruction and extinction. Likewise, A Walk Through H, is... (shrink)

This article will explore a problem which is related to our moral obligations towards species. Although the re-creation of extinct animals has been discussed to some degree both in lay deliberations as well as by scientists, advocates tend to emphasize the technological and scientific value of such an endeavour, and the “coolness” factor, 32–33, 2013). This article will provide an argument in favour of re-creation based on normative considerations. The environmentalist community generally accepts that it is wrong to exterminate species, (...) for reasons beyond any instrumental value these species may have. It is often also claimed that humanity has a collective responsibility to either preserve or at least to not exterminate species. These two beliefs are here assumed to be correct. The argument presented here departs from and places these two ideas in a deontological framework, from which it is argued that when humanity causes the extinction of a species, this is a moral transgression, entailing a residual obligation. Such an obligation implies a positive duty to mitigate any harm caused by our moral failure. In light of recent scientific progress in the field of genetic engineering, it will be argued that humanity has a prima facie obligation to re-create species whose extinction mankind may have caused, also known as de-extinction. (shrink)

The cumulative impact of enhancement technologies may alter the human species in the very long-term future. In this article, I will start showing how radical genetic enhancements may accelerate the conversion into a novel species. I will also clarify the concepts of ‘biological species’, ‘transhuman’ and ‘posthuman’. Then, I will summarize some ethical arguments for creating a transhuman or posthuman species with a substantially higher level of well-being than the human one. In particular, I will present what I shall call (...) the Principle of the Best Interests of Posthumanity, which states that the enhancement of the human and transhuman species must be directed towards the creation of a posthuman existence that is substantially more valuable than its predecessors. I suggest that human extinction may be considered, within that principle, as one of the best interests of posthumanity. Finally, I will develop three objections that make that principle unattractive and that show that pursuing a full-blown programme of posthuman evolution is ethically flawed. (shrink)

Anxiety disorders are among the most prevalent mental disorders. Present treatments such as cognitive behavior therapy and pharmacological treatments show only moderate success, which emphasizes the importance for the development of new treatment protocols. Non-invasive brain stimulation methods such as repetitive transcranial magnetic stimulation and transcranial direct current stimulation have been probed as therapeutic option for anxiety disorders in recent years. Mechanistic information about their mode of action, and most efficient protocols is however limited. Here the fear extinction model (...) can serve as a model of exposure therapies for studying therapeutic mechanisms, and development of appropriate intervention protocols. We systematically reviewed 30 research articles that investigated the impact of rTMS and tDCS on fear memory and extinction in animal models and humans, in clinical and healthy populations. The results of these studies suggest that tDCS and rTMS can be efficient methods to modulate fear memory and extinction. Furthermore, excitability-enhancing stimulation applied over the vmPFC showed the strongest potential to enhance fear extinction. We further discuss factors that determine the efficacy of rTMS and tDCS in the context of the fear extinction model and provide future directions to optimize parameters and protocols of stimulation for research and treatment. (shrink)

In an effort to inform the discussion surrounding existential risks from AI, we formulate Extinction-level Goodhart’s Law as “Virtually any goal specification, pursued to the extreme, will result in the extinction of humanity”, and we aim to understand which formal models are suitable for investigating this hypothesis. Note that we remain agnostic as to whether Extinction-level Goodhart’s Law holds or not. As our key contribution, we identify a set of conditions that are necessary for a model that (...) aims to be informative for evaluating specific arguments for Extinction-level Goodhart’s Law. Since each of the conditions seems to significantly contribute to the complexity of the resulting model, formally evaluating the hypothesis might be exceedingly difficult. This raises the possibility that whether the risk of extinction from artificial intelligence is real or not, the underlying dynamics might be invisible to current scientific methods. (shrink)

The probability of lineal extinction is sensitive to all the moments of the reproductive success probability distribution. In particular, high variance in reproductive success is associated with high probability of lineal extinction. Where male variance in reproductive success exceeds female variance, strictly patrilineal lines of descent will become extinct more rapidly than strictly matrilineal lines of descent. Patrilineal genealogies will be expected to be shallower and broader than matrilineal genealogies under such conditions. Potential implications of this genealogical asymmetry (...) for human descent systems include the greater information content of patrilineal kinship reckoning compared with any other unilineal system and the greater effectiveness of patrilineal kinship as a vehicle for corporate action. (shrink)

Extinction is usually associated with the death of the last remaining individual of a species, taxon, or population of organisms. Here I ask the question of whether extinction might also be applied to cases where individuals of the relevant category remain alive. Global impacts in the Anthropocene suggest extinction may be broader than typically thought. Technologies available in the emerging ‘synthetic age’ alter taxa in ways that may appropriately be characterized as extinction. The core of the (...) more traditional account of extinction remains valuable. Losing the last few individuals of a taxon matters. But emerging types of loss may demand a broader understanding of extinction. This broader understanding could capture more of what humans are doing to the biosphere. (shrink)

De-extinction raises anew ontological and epistemological problems that have engaged environmental philosophers for decades. This essay re-examines these issues to provide a fuller understanding—and a critique—of de-extinction. One of my claims is that de-extinction as a philosophical problem merely recycles old issues and debates in the field (hence, “zombie” arguments). De-extinction is a project that arises out of the assertion of human domination of the natural world. Thus the acceptance of de-extinction as an environmental policy (...) is an expression of a human-nature relationship that disvalues the natural world and subjugates nature completely to the interests of humanity. (shrink)

Some people feel distressed reflecting on human extinction. Some people even claim that our efforts and lives would be empty and pointless if humanity becomes extinct, even if this will not occur for millions of years. In this essay, I will attempt to demonstrate that this claim is false. The desire for long-lastingness or quasi-immortality is often unwittingly adopted as a standard for judging whether our efforts are significant. If we accomplish our goals and then later in life conclude (...) that these accomplishments were of no significance, then this is a sign that the desire for long-lastingness has crept into our standards. By recognizing this, and refraining from adopting an unreasonable standard to judge whether our efforts are significant, it will be to our advantage. Then, when we look back on life from an external perspective that encompasses times after humanity has become extinct, we will not conclude that our efforts amounted to nothing. Rather, we will conclude that many people made significant accomplishments that made their lives and the lives of other people better than they would have been if their goals had never been pursued. (shrink)

In the midst of only the 6th mass extinction in the Earth's history, we must rethink how we teach evolution to prevent natural selection from being incorrectly used as a biological justification for inaction in the face of today's human‐caused mass extinction crisis. Pundits, policy makers, and the general public regularly identify the extinction of endangered species as natural selection at work, rather than attributing modern‐day extinction to the sudden catastrophic bad luck of human caused environmental (...) change, a phenomenon distinct from natural selection. In this natural selection framing, the inability of species to survive in human altered environments is the normal progression of “survival of the fittest” and conservation measures designed to protect species is human interference with natural selection. Paradoxically, this erroneous framing of extinction as the normal course of natural selection ignores humanity's exceptional role in causing today's mass extinction crisis. Our examination of this issue in U.S. college students indicates that it arises from misunderstanding the role of extinction in the history of life, leading us to recommend a greater teaching emphasis on the distinction between extinction and natural selection, and on past mass extinction events. Also see the video abstract here https://youtu.be/29VRyirMdiw. (shrink)

Background: The three-dimensional model of nurses’ moral sensitivity has typically been studied using a variable-centered rather than a person-centered approach, preventing a more complete understanding of how these forms of moral sensitivity are expressed as a whole. Latent profile analysis is a person-centered approach that classifies individuals from a heterogeneous population into homogeneous subgroups, helping identify how different subpopulations of nurses use distinct combinations of different moral sensitivities to affect their service behaviors. Objective: Latent profile analysis was used (...) to identify three distinct profiles of nurses’ moral sensitivity. Associations of the profiles with service behaviors were then examined. Methods: Five hundred twenty-five nurses from three tertiary hospitals in China were investigated with Moral Sensitivity Questionnaire and Nurses’ Service Behavior Scale. Latent profile analysis was used to analyze the data. Ethical considerations: Approval was obtained from the Ethics committee for biomedical research of Medical College, the Hebei University of Engineering. Results: A three-profile moral sensitivity model provided the best fit to the data. The resulting profiles were low moral sensitivity, moderate moral sensitivity, and high moral sensitivity. There were significant differences in service behaviors among different profiles of moral sensitivity. Conclusion: The results provide a new and expanded view of nurses’ moral sensitivity, which may be used to monitor nurses’ service behaviors comprehensively and to evaluate nursing ethics management strategies. (shrink)

“Existential risks” are risks that threaten the destruction of humanity’s long-term potential: risks of nuclear wars, pandemics, supervolcano eruptions, and so on. On standard utilitarianism, it seems, the reduction of such risks should be a key global priority today. Many effective altruists agree with this verdict. But how should the importance of these risks be assessed on a Christian moral theory? In this paper, I begin to answer this question – taking Thomas Aquinas as a reference, and the risks of (...) anthropogenic extinction as an example. I’ll suggest that on a Thomist framework, driving ourselves extinct would constitute a complete failure to fulfil our God-given nature, a radical form of hubris, and a loss of cosmological significance. So the reduction of such risks seems vital for Thomists, or Christians more broadly. Indeed, I end with the thought that these considerations are not parochially Christian, or indeed specifically religious: everyone with a similar view of mankind – as immensely valuable yet fallen and fragile – should agree that existential risks are a pressing moral concern. (shrink)

Both paleobiology and investigations of ‘major evolutionary transitions’ are intimately concerned with the macroevolutionary shape of life. It is surprising, then, how little studies of major transitions are informed by paleontological perspectives and. I argue that this disconnect is partially justified because paleobiological investigation is typically ‘phenomena-led’, while investigations of major transitions are ‘theory-led’. The distinction turns on evidential relevance: in the former case, evidence is relevant in virtue of its relationship to some phenomena or hypotheses concerning those phenomena; in (...) the latter, evidence is relevant in virtue of providing insights into, or tests of, an abstract body of theory. Because paleobiological data is by-and-large irrelevant to the theory which underwrites the traditional conception of major transitions, it is of limited use to that research program. I suggest that although the traditional conception of major transitions is neither ad-hoc or problematically incomplete, its promise of providing unificatory explanations of the transitions is unlikely to be kept. Further, examining paleobiological investigations of mass extinctions and organogenesis, I further argue that whether or not transitions in paleobiology count as ‘major’ turns on how we conceive of major transitions ; although major transitions potentially have a unified theoretical basis, recent developments suggest that investigations are becoming increasingly phenomena-led; adopting phenomena-led investigations maximizes the evidence available to paleobiologists. (shrink)

This book is about the philosophy of de-extinction. -/- CHAPTER 1 introduces the two main philosophical questions that are raised by the prospect of extinct species being brought back from the dead—namely, the ‘Authenticity Question’ and the ‘Ethical Question’. It distinguishes the many different types and methods of de-extinction. Finally, it examines the aims of wildlife conservation with a view to whether they are compatible with de-extinction, or not. -/- CHAPTER 2 examines three prime candidates for de- (...) class='Hi'>extinction—namely, the aurochs, the woolly mammoth, and the passenger pigeon. It is about what these animals were like, why people want to resurrect them, and the methods by which their resurrections could be accomplished. -/- CHAPTER 3 is about the authenticity of de-extinct animals. Critics of de-extinction have offered many reasons for thinking that the products of de-extinction will be inauthentic. The bulk of the chapter is taken up with surveying their arguments. We attempt to show that none are convincing, and end the chapter by offering and defending two arguments in favour of the view that authentic de-extinctions are possible. -/- CHAPTER 4 surveys and critically evaluates all the main arguments both for and against de-extinction. It presents a qualified defence of the claim that conservationists should embrace de-extinction. It ends with a list of do’s and don’ts for conservationist de-extinction projects. (shrink)

Background Hospital ethical climate has important implications for clinical nurses’ service behavior; however, the relationships are complicated by the fact that five types of ethical climate (caring, law and code, rules, instrumental, and independence) can be combined differently according to their level and shape differences. Recent developments in person-centered methods (e.g., latent profile analysis (LPA)) have helped to address these complexities. Aim From a person-centered perspective, this study explored the distinct profiles of hospital ethical climate and then examined the (...) relationships of the profiles with clinical nurses’ service behavior (both in-role and extra-role service behavior). Research design A quantitative study was conducted using cluster random sampling. Latent profile analysis and binary coded hexadecimal (BCH) analysis were conducted using Mplus 8.2. Participants and research context A total of 871 clinical nurses in China were surveyed using the Ethical Climate Scale and Nurses’ Service Behavior Questionnaire. Ethical considerations Ethical approval was obtained from the IRB of the First Affiliated Hospital of Jinan University (No. KY-2020-090). Results A four-profile hospital ethical climate model provided the best fit for the data. The four different profiles not only varied in level, but also in shape: high normative and low egoism (45.8%), high ethical climate (19.9%), low ethical climate (3.6%), and moderate ethical climate (30.8%). These profiles differentially predicted clinical nurses’ overall, in-role, and extra-role service behaviors. Conclusions The results reveal new insights into the nature of hospital ethical climate and how different clinical nurses in these profiles can be best managed to accomplish different forms of service behavior. (shrink)

Human extinction is something generally deemed as undesirable, although some scholars view it as a potential solution to the problems of the Earth since it would reduce the moral evil and the suffering that are brought about by humans. We contend that humans collectively have absolute intrinsic value as sentient, conscious and rational entities, and we should preserve them from extinction. However, severe threats, such as climate change and incurable viruses, might push humanity to the brink of (...) class='Hi'>extinction. Should that occur, it might be useful to envision a successor to humans able to preserve and hand down its value. One option would be to resort to humanoid robots that reproduce our salient characteristics by imitation, thanks to AI powered by machine learning. However, the question would arise of how to select the characteristics needed for our successors to thrive. This could prove to be particularly challenging. A way out might come from an algorithm entrusted with this choice. In fact, an algorithmic selection both at the social and at the individual level could be a preferred choice than other traditional ways of making decisions. In this sense, reflecting on human extinction helps us to identify solutions that are also suitable for the problems we face today. (shrink)

This paper offers a paleobiological perspective on the debate concerning the possible use of biotechnology to bring back extinct species. One lesson from paleobiology is that extinction selectivity matters in addition to extinction rates and extinction magnitude. Combining some of Darwin’s insights about artificial selection with the theory of species selection that paleobiologists developed in the 1970s and 1980s provides a useful context for thinking about de-extinction. Using recent work on the prioritization of candidate species for (...) de-extinction as a test case, the paper argues that de-extinction would be a form of artificial species selection in which humans influence which species persist vs. go extinct. This points to a serious gap in our ethical theory: Much work has been done to clarify the value of biological diversity, but we also need theoretical guidance for decisions that amount to species sorting, and that will shape the macroevolutionary future. (shrink)

On certain plausible views, if humanity were to unanimously decide to cause its own extinction, this would not be wrong, since there is no one whom this act would wrong. We argue this is incorrect. Causing human extinction would still wrong someone; namely, our forebears who sacrificed life, limb and livelihood for the good of posterity, and whose sacrifices would be made less morally worthwhile by this heinous act.

Graphical AbstractFunding for understanding biodiversity on this planet has had a checkered and unsatisfactory history. There have been some true successes in developing models for assessing biodiversity, but satisfactory governmental and international support has been piecemeal and unsatisfactory. A true solution to the biodiversity crisis will require greater attention from governmental and international funding agencies.

이 글은 ｢인승마｣ 은유의 탄생과 수용, 변형과 끝의 어떤 궤적을 서술한다. 이 은유는 주희에서 시작하여 이황과 이이를 거쳐 다양한 해석학적 변형을 야기하면서 한국 성리학 의 철학적 사유를 추동하는 뿌리은유였다. 개념적 은유는 인간의 신체적 경험을 기반으로 추상적 사유를 서술하는 사유 양식이다. 개념적 은유의 확장성은 ｢인승마｣ 은유의 변형을 유발했고, 결과적으로 이 은유에 대한 주희의 해석만으로는 확장과 변형을 모두 설명할 수 없게 되었다. 이 글은 『주역』 ｢계사전｣에서 그 단초를 찾았다. 주희의 ｢인승마｣ 은유를 수 용한 이황은 ｢운동(힘)｣ 도식을 재해석하여 리의 ‘자기 원인적인 힘’을 담지한 (...) ‘이발 (理發)’을 제시한다. 이이는 이황의 도식에 문제를 제기했고, ｢계사전｣의 ｢포함｣ 도식에 기인한 ｢그릇 속의 물[器中水]｣ 은유를 대안으로 제시했다. 이를 통해 ｢운동(힘)｣ 도식에 서 벗어나고자 했으나, 힘의 문제는 여전히 은폐된 채 잔존했다. 이런 공약 불가능성은 이 기 논쟁의 큰 두 축인 ‘주리 계열체’와 ‘기발이승 계열체’로의 분화를 야기했다. 18 세기 이익(李瀷)의 ｢인승주(人乘舟)｣ 은유를 마지막으로 이 은유에 대한 논쟁은 잠잠해졌 다. 이 은유는 19세기 후반 기정진의 ｢외필(猥筆)｣에 의해 다시 살아났고, 율곡학파에서 퇴계학파의 성리학을 일원화시키려는 그의 노력은 ‘외필논쟁(猥筆論諍)’을 야기했다. 전우는 ｢외필변(猥筆辨)｣과 ｢삼가태극설변(三家太極說辨)｣에서 그의 은유를 비판했다. 이 논쟁은 ‘주리 계열체’의 연속으로 리가 사물화(死物化)되는 것을 우려한 진영과 ‘기발 이승 계열체’의 연속으로 리의 지나친 활물화(活物化)를 우려하는 진영으로 구분할 수 있다. 마지막으로 ｢인승마｣ 은유의 종말은 리의 실재성을 부정하는 철학적 사유의 등장과 함께했다. 기의 자존성(自存性)만을 주장한 설태희(薛泰熙)에 의해 그 종말이 선언되었던 것이다. (shrink)