BackgroundHuman embryonic stem cells as a source for the development of advanced therapy medicinal products are considered for treatment of Parkinson’s disease. Research has shown promising results and opened an avenue of great importance for patients who currently lack a disease modifying therapy. The use of hESC has given rise to moral concerns and been the focus of often heated debates on the moral status of human embryos. Approval for marketing is still pending.ObjectiveTo Investigate the perspectives and concerns of patients (...) with PD, patients being the directly concerned stakeholders in the ethical discussion.MethodsQualitative semi-structured interviews related to this new therapy in seventeen patients from two Swedish cities.ResultsThe participants expressed various interests related to the use of human embryos for development of medicinal therapies; however, overall, they were positive towards the use of hESC for treatment of PD. It was deemed important that the donating woman or couple made the choice to donate embryos voluntarily. Furthermore, there were concerns that the industry does not always prioritise the patient over profit; thus, transparency was seen as important. (shrink)

BackgroundNew disease-modifying ways to treat Parkinson’s disease (PD) may soon become a reality with intracerebral transplantation of cell products produced from human embryonic stem cells (hESCs). The aim of this study was to assess what factors influence preferences of patients with PD regarding stem-cell based therapies to treat PD in the future.MethodsPatients with PD were invited to complete a web-based discrete choice experiment to assess the importance of the following attributes: (i) type of treatment, (ii) aim of treatment, (iii) available (...) knowledge of the different types of treatments, (iv) effect on symptoms, and (v) risk for severe side effects. Latent class conditional logistic regression models were used to determine preference estimates and heterogeneity in respondents’ preferences.ResultsA substantial difference in respondents’ preferences was observed in three latent preference patterns (classes). “Effect on symptoms” was the most important attribute in class 1, closely followed by “type of treatment,” with medications as preferred to other treatment alternatives. Effect on symptoms was also the most important attribute in class 2, with treatment with hESCs preferred over other treatment alternatives. Likewise for class 3, that mainly focused on “type of treatment” in the decision-making. Respondents’ class membership was influenced by their experience in treatment, side effects, and advanced treatment therapy as well as religious beliefs.ConclusionsMost of the respondents would accept a treatment with products emanating from hESCs, regardless of views on the moral status of embryos. Preferences of patients with PD may provide guidance in clinical decision-making regarding treatments deriving from stem cells. (shrink)

In this paper, I discuss practical reasons and value, assuming a coexistence thesis according to which reasons and value always go together. I start by doing some taxonomy, distinguishing among three different ways of accounting for the relation between practical reasons and the good. I argue that, of these views, the most plausible one is that according to which something’s being good just consists in how certain facts about the thing in question – other than that of how it is (...) good – give us reasons to want it. It has been argued that this reasons-based account of goodness is open to various counter-examples. I consider a few, and argue that they misfire. (shrink)

Self-driving cars hold out the promise of being safer than manually driven cars. Yet they cannot be a 100 % safe. Collisions are sometimes unavoidable. So self-driving cars need to be programmed for how they should respond to scenarios where collisions are highly likely or unavoidable. The accident-scenarios self-driving cars might face have recently been likened to the key examples and dilemmas associated with the trolley problem. In this article, we critically examine this tempting analogy. We identify three important ways (...) in which the ethics of accident-algorithms for self-driving cars and the philosophy of the trolley problem differ from each other. These concern: the basic decision-making situation faced by those who decide how self-driving cars should be programmed to deal with accidents; moral and legal responsibility; and decision-making in the face of risks and uncertainty. In discussing these three areas of disanalogy, we isolate and identify a number of basic issues and complexities that arise within the ethics of the programming of self-driving cars. (shrink)

This volume examines the notion of an analytic proof as a natural deduction, suggesting that the proof's value may be understood as its normal form--a concept with significant implications to proof-theoretic semantics.

Some critics of sex-robots worry that their use might spread objectifying attitudes about sex, and common sense places a higher value on sex within love-relationships than on casual sex. If there could be mutual love between humans and sex-robots, this could help to ease the worries about objectifying attitudes. And mutual love between humans and sex-robots, if possible, could also help to make this sex more valuable. But is mutual love between humans and robots possible, or even conceivable? We discuss (...) three clusters of ideas and associations commonly discussed within the philosophy of love, and relate these to the topic of whether mutual love could be achieved between humans and sex-robots: (i) the idea of love as a “good match”; (ii) the idea of valuing each other in our distinctive particularity; and (iii) the idea of a steadfast commitment. We consider relations among these ideas and the sort of agency and free will that we attribute to human romantic partners. Our conclusion is that mutual love between humans and advanced sex-robots is not an altogether impossible proposition. However, it is unlikely that we will be able to create robots sophisticated enough to be able to participate in love-relationships anytime soon. -/- . (shrink)

Kantians are increasingly deserting the universal law formula in favor of the humanity formula. The former, they argue, is open to various decisive objections; the two are not equivalent; and it is only by appealing to the humanity formula that Kant can reliably generate substantive implications from his theory of an acceptable sort. These assessments of the universal law formula, which clash starkly with Kant's own assessment of it, are based on various widely accepted interpretative assumptions. These assumptions, it is (...) argued in this article, depend on misleading translations of key terms; selective attention to Kant's concrete examples; not taking seriously Kant's theoretical claims about the relations among his various ideas; and a failure to take into account Kant's idiosyncratic definitions of key concepts. The article seeks to right these interpretative wrongs, and finds that the universal law formula is not open to many of the standard objections. (shrink)

Many ethicists writing about automated systems attribute agency to these systems. Not only that; they seemingly attribute an autonomous or independent form of agency to these machines. This leads some ethicists to worry about responsibility-gaps and retribution-gaps in cases where automated systems harm or kill human beings. In this paper, I consider what sorts of agency it makes sense to attribute to most current forms of automated systems, in particular automated cars and military robots. I argue that whereas it indeed (...) makes sense to attribute different forms of fairly sophisticated agency to these machines, we ought not to regard them as acting on their own, independently of any human beings. Rather, the right way to understand the agency exercised by these machines is in terms of human–robot collaborations, where the humans involved initiate, supervise, and manage the agency of their robotic collaborators. This means, I argue, that there is much less room for justified worries about responsibility-gaps and retribution-gaps than many ethicists think. (shrink)

In this paper, we engage in dialogue with Jonathan Pugh, Hannah Maslen, and Julian Savulescu about how to best interpret the potential impacts of deep brain stimulation on the self. We consider whether ordinary people’s convictions about the true self should be interpreted in essentialist or existentialist ways. Like Pugh et al., we argue that it is useful to understand the notion of the true self as having both essentialist and existentialist components. We also consider two ideas from existentialist philosophy (...) – Jean-Paul Sartre and Simone de Beauvoir’s ideas about “bad faith” and “ambiguity” – to argue that there can be value to patients in regarding themselves as having a certain amount of freedom to choose what aspects of themselves should be considered representative of their true selves. Lastly, we consider the case of an anorexia nervosa-patient who shifts between conflicting mind-sets. We argue that mind-sets in which it is easier for the patient and his or her family to share values can plausibly be considered to be more representative of the patient’s true self, if this promotes a well-functioning relationship between the patient and the family. However, we also argue that families are well-advised to give patients room to figure out what such shared values mean to them, since it can be alienating for patients if they feel that others try to impose values on them from the outside. (shrink)

Whereas the universal law formula says to choose one’s basic guiding principles (or “maxims”) on the basis of their fitness to serve as universal laws, the humanity formula says to always treat the humanity in each person as an end, and never as a means only. Commentators and critics have been puzzled by Kant’s claims that these are two alternative statements of the same basic law, and have raised various objections to Kant’s suggestion that these are the most basic formulas (...) of a fully justified human morality. This dissertation offers new readings of these two formulas, shows how, on these readings, the formulas do indeed turn out being alternative statements of the same basic moral law, and in the process responds to many of the standard objections raised against Kant’s theory. Its first chapter briefly explores the ways in which Kant draws on his philosophical predecessors such as Plato (and especially Plato’s Republic) and Jean-Jacque Rousseau. The second chapter offers a new reading of the relation between the universal law and humanity formulas by relating both of these to a third formula of Kant’s, the “Law of Nature” formula, and also to Kant’s ideas about laws in general and human nature in particular. The third chapter considers and rejects some influential recent attempts to understand Kant’s argument for the humanity formula, and offers an alternative reconstruction instead. Chapter four considers what it is to flourish as a human being in line with Kant’s basic formulas of morality, and argues that the standard readings of the humanity formula cannot properly account for its relation to Kant’s views about the highest human good. (shrink)

This paper discusses two opposing views about the relation between artificial intelligence (AI) and human intelligence: on the one hand, a worry that heavy reliance on AI technologies might make people less intelligent and, on the other, a hope that AI technologies might serve as a form of cognitive enhancement. The worry relates to the notion that if we hand over too many intelligence-requiring tasks to AI technologies, we might end up with fewer opportunities to train our own intelligence. Concerning (...) AI as a potential form of cognitive enhancement, the paper explores two possibilities: (1) AI as extending—and thereby enhancing—people’s minds, and (2) AI as enabling people to behave in artificially intelligent ways. That is, using AI technologies might enable people to behave as if they have been cognitively enhanced. The paper considers such enhancements both on the level of individuals and on the level of groups. (shrink)

In fascinating recent work, Julian Savulescu and his various co‐authors argue that human love is one of the things we can improve upon using biomedical enhancements. Is that so? This article first notes that Savulescu and his co‐authors mainly treat love as a means to various other goods. Love, however, is widely regarded as an intrinsic good. To investigate whether enhancements can produce the distinctive intrinsic good of love, this article does three things. Drawing on Philip Pettit's recent discussion of (...) ‘robustly demanding goods’, it asks what exactly we intrinsically desire in seeking love; it considers four possible outcomes involving attachment‐enhancements and attachments; and it considers two different pieces of news we might receive about our lovers' attachment to us (that it is, or that it is not, sustained with the help of enhancement‐technologies). Enhancement‐sustained attachment, it is concluded, is less desirable than the intrinsic good of love. (shrink)

This book argues that we need to explore how human beings can best coordinate and collaborate with robots in responsible ways. It investigates ethically important differences between human agency and robot agency to work towards an ethics of responsible human-robot interaction.

In this paper, we discuss the relation between recent philosophical discussions about meaning in life (from authors like Susan Wolf, Thaddeus Metz, and others) and the ethics of artificial intelligence (AI). Our goal is twofold, namely, to argue that considering the axiological category of meaningfulness can enrich AI ethics, on the one hand, and to portray and evaluate the small, but growing literature that already exists on the relation between meaning in life and AI ethics, on the other hand. We (...) start out our review by clarifying the basic assumptions of the meaning in life discourse and how it understands the term ‘meaningfulness’. After that, we offer five general arguments for relating philosophical questions about meaning in life to questions about the role of AI in human life. For example, we formulate a worry about a possible meaningfulness gap related to AI on analogy with the idea of responsibility gaps created by AI, a prominent topic within the AI ethics literature. We then consider three specific types of contributions that have been made in the AI ethics literature so far: contributions related to self-development, the future of work, and relationships. As we discuss those three topics, we highlight what has already been done, but we also point out gaps in the existing literature. We end with an outlook regarding where we think the discussion of this topic should go next. (shrink)

In her 1993 book Freedom within Reason, Susan Wolf discusses what she identifies as an asymmetry between the good and the bad: to qualify as doing good in a praiseworthy way, it is not necessary that one should have the ability to do otherwise, but in order to qualify as doing something bad in a blameworthy way, it is necessary that one has the ability to do otherwise. In this chapter, I relate this asymmetry between the good and the bad (...) that Wolf discusses to a range of other asymmetries between the good and the bad that various philosophers – both historical figures and contemporary philosophers – have identified. I discuss different ways of thinking about the relations among these supposed asymmetries between the good and the bad, identify different ways in which one can relate to these ideas in one’s philosophical thinking, and lastly also argue that the long history of philosophical reflections on asymmetries between the good and the bad is interesting to contemporary discussions within applied ethics. In particular, I relate these ideas about asymmetries between the good and the bad to contemporary discussions about moral responsibility – and possible gaps in responsibility – within the ethics of artificial intelligence. (shrink)

How might emerging and future technologies—sex robots, love drugs, anti-love drugs, or algorithms to track, quantify, and ‘gamify’ romantic relationships—change how we understand and value love? We canvass some of the main ethical worries posed by such technologies, while also considering whether there are reasons for “cautious optimism” about their implications for our lives. Along the way, we touch on some key ideas from the philosophies of love and technology.

The absence of meaningfulness in life is meaninglessness. But what is the polar opposite of meaningfulness? In recent and ongoing work together with Stephen Campbell and Marcello di Paola respectively, I have explored what we dub ‘anti-meaning’: the negative counterpart of positive meaning in life. Here, I relate this idea of ‘anti-meaningful’ actions, activities, and projects to the topic of death, and in particular the deaths or suffering of those who will live after our own deaths. Connecting this idea of (...) anti-meaning and what happens after our own deaths to recent work by Samuel Scheffler on what he calls ‘the collective afterlife’ and his four reasons to care about future generations, I argue that if we today make choices or have lifestyles that later lead to unnecessarily early deaths and otherwise avoidable suffering of people who will live after we have died, this robs our current choices and lifestyles of some of their meaning, perhaps even making them the opposite of meaningful in the long run. (shrink)

In the Technology Age, innovations in medical, communications, and weapons technologies have given rise to many new ethical questions: Are technologies always value-neutral tools? Are human values and human prejudices sometimes embedded in technologies? Should we merge with the technologies we use? Is it ethical to use autonomous weapons systems in warfare? What should a self-driving car do if it detects an unavoidable crash? Can robots have morally relevant properties? -/- This is Technology Ethics: An Introduction provides an accessible overview (...) of the sub-field of philosophy that focuses on the ethical implications of new technologies. Requiring no previous background in the subject, this reader-friendly volume explores ethical questions concerning artificial intelligence, robots, self-driving cars, brain implants, social media and communication technologies, and more. Throughout the book, clear and engaging chapters describe and discuss key discussions, issues, and themes while inviting readers to develop their own perspectives on a wide range of moral and ethical questions. -/- * Discusses how various technologies influence and shape individuals and society both positively and negatively * Illustrates how emerging technologies affect traditional ideas about ethics and human self-understanding * Addresses the ethical complications of creating technologies that may lead to morally problematic consequences * Considers if the benefits of new technologies outweigh potential drawbacks, such as how people interact online through social media * Explores how established moral and ethical theories relate to new questions concerning advanced technologies -/- Part of the popular This is Philosophy series published by Wiley-Blackwell, This is Technology Ethics: An Introduction is a must-read for undergraduate students taking a Technology Ethics course, researchers in the field, engineers, technology professionals, and general readers looking to learn more about the topic. (shrink)

This article points out problems in current dynamic treatments of anaphora and provides a new account that solves these by grafting Muskens' Compositional Discourse Representation Theory onto a partial theory of types. Partiality is exploited to keep track of which discourse referents have been introduced in the text (thus avoiding the overwrite problem) and to account for cases of anaphoric failure. Another key assumption is that the set of discourse referents is well-ordered, so that we can keep track of the (...) order in which they have been introduced, allowing a semantic characterization of anaphoric accessibility across stretches of discourse. Unlike other dynamic approaches, the system defines semantic values for unresolved anaphors. This leads to a clear separation of monotonic and non-monotonic content (in this case anaphoric resolution) and arguably provides a sound basis for a non-monotonic theory of anaphoric resolution. (shrink)

It is widely recognized that lives and activities can be meaningful or meaningless, but few have appreciated that they can also be anti-meaningful. Anti-meaning is the polar opposite of meaning. Our purpose in this essay is to examine the nature and importance of this new and unfamiliar topic. In the first part, we sketch four theories of anti-meaning that correspond to leading theories of meaning. In the second part, we argue that anti-meaning has significance not only for our attempts to (...) theorize about meaning in life, but also for our ability to lead meaningful lives in the modern world. (shrink)

Dag Prawitz The Bulletin of Symbolic Logic, Volume 19, Issue 1, Page 119-122, March 2013.

In this paper, we discuss the ethics of automated driving. More specifically, we discuss responsible human-robot coordination within mixed traffic: i.e. traffic involving both automated cars and conventional human-driven cars. We do three main things. First, we explain key differences in robotic and human agency and expectation-forming mechanisms that are likely to give rise to compatibility-problems in mixed traffic, which may lead to crashes and accidents. Second, we identify three possible solution-strategies for achieving better human-robot coordination within mixed traffic. Third, (...) we identify important ethical challenges raised by each of these three possible strategies for achieving optimized human-robot cordination in this domain. Among other things, we argue that we should not just explore ways of making robotic driving more like human driving. Rather, we ought also to take seriously potential ways of making human driving more like robotic driving. Nor should we assume that complete automation is always the ideal to aim for; in some traffic-situations, the best results may be achieved through human-robot collaboration. Ultimately, our main aim in this paper is to argue that the new field of the ethics of automated driving needs take seriously the ethics of mixed traffic and responsible human-robot coordination. (shrink)

Abstract“Gamification” refers to adding game-like elements to non-game activities so as to encourage participation. Gamification is used in various contexts: apps on phones motivating people to exercise, employers trying to encourage their employees to work harder, social media companies trying to stimulate user engagement, and so on and so forth. Here, I focus on gamification with this property: the game-designer (a company or other organization) creates a “game” in order to encourage the players (the users) to bring about certain outcomes (...) as a side effect of playing the game. The side effect might be good for the user (e.g., improving her health) and/or good for the company or organization behind the game (e.g., advertising their products, increasing their profits, etc.). The “players” of the game may or may not be aware of creating these side effects; and they may or may not approve of/endorse the creation of those side effects. The organizations behind the games, in contrast, are typically directly aiming to create games that have the side effects in question. These aspects of gamification are puzzling and interesting from the point of view of philosophical analyses of agency and responsibility for outcomes. In this paper, I relate these just-mentioned aspects of gamification to some philosophical discussions of responsibility gaps, the ethics of side effects (including the Knobe effect and the doctrine of double effect), and ideas about the relations among different parties’ agency. (shrink)

This paper discusses the robotization of the workplace, and particularly the question of whether robots can be good colleagues. This might appear to be a strange question at first glance, but it is worth asking for two reasons. Firstly, some people already treat robots they work alongside as if the robots are valuable colleagues. It is worth reflecting on whether such people are making a mistake. Secondly, having good colleagues is widely regarded as a key aspect of what can make (...) work meaningful. In discussing whether robots can be good colleagues, the paper compares that question to the more widely discussed questions of whether robots can be our friends or romantic partners. The paper argues that the ideal of being a good colleague has many different parts, and that on a behavioral level, robots can live up to many of the criteria typically associated with being a good colleague. Moreover, the paper also argues that in comparison with the more demanding ideals of being a good friend or a good romantic partner, it is comparatively easier for a robot to live up to the ideal of being a good colleague. The reason for this is that the “inner lives” of our friends and lovers are more important to us than the inner lives of our colleagues. (shrink)

Large Language Models (LLMs) “assign probabilities to sequences of text. When given some initial text, they use these probabilities to generate new text. Large language models are language models u...

Drawing on insights from robotics, psychology, and human-computer interaction, developers of sex robots are currently aiming to create emotional bonds of attachment and even love between human users and their products. This is done by creating robots that can exhibit a range of facial expressions, that are made with human-like artificial skin, and that possess a rich vocabulary with many conversational possibilities. In light of the human tendency to anthropomorphize artefacts, we can expect that designers will have some success and (...) that this will lead to the attribution of mental states to the robot that the robot does not actually have, as well as the inducement of significant emotional responses in the user. This raises the question of whether it might be ethically problematic to try to develop robots that appear to love their users. We discuss three possible ethical concerns about this aim: first, that designers may be taking advantage of users’ emotional vulnerability; second, that users may be deceived; and, third, that relationships with robots may block off the possibility of more meaningful relationships with other humans. We argue that developers should attend to the ethical constraints suggested by these concerns in their development of increasingly humanoid sex robots. We discuss two different ways in which they might do so. (shrink)

Advancements in artificial intelligence and (social) robotics raise pertinent questions as to how these technologies may help shape the society of the future. The main aim of the chapter is to consider the social and conceptual disruptions that might be associated with social robots, and humanoid social robots in particular. This chapter starts by comparing the concepts of robots and artificial intelligence and briefly explores the origins of these expressions. It then explains the definition of a social robot, as well (...) as the definition of humanoid robots. A key notion in this context is the idea of anthropomorphism: the human tendency to attribute human qualities, not only to our fellow human beings, but also to parts of nature and to technologies. This tendency to anthropomorphize technologies by responding to and interacting with them as if they have human qualities is one of the reasons why social robots (in particular social robots designed to look and behave like human beings) can be socially disruptive. As is explained in the chapter, while some ethics researchers believe that anthropomorphization is a mistake that can lead to various forms of deception, others — including both ethics researchers and social roboticists — believe it can be useful or fitting to treat robots in anthropomorphizing ways. The chapter explores that disagreement by, among other things, considering recent philosophical debates about whether social robots can be moral patients, that is, whether it can make sense to treat them with moral consideration. Where one stands on this issue will depend either on one’s views about whether social robots can have, imitate, or represent morally relevant properties, or on how people relate to social robots in their interactions with them. Lastly, the chapter urges that the ethics of social robots should explore intercultural perspectives, and highlights some recent research on Ubuntu ethics and social robots. (shrink)

In my contribution to this book symposium on Emma Gordon’s book Human Enhancement and Well-Being, I discuss and respond to Gordon’s extensive discussion and criticisms of a skeptical argument regarding the desirability of love enhancements that I presented in a 2015 paper. I start by first explaining the overall project of Gordon’s book, make a general comment about her overall approach (which I am broadly sympathetic with), and then proceed to a detailed discussion of Gordon’s critical engagement with my 2015 (...) argument. I defend my argument against Gordon’s interesting criticisms and argue that Gordon has not defused my skeptical challenge to the desirability of love enhancements, but I also end by identifying key points of agreement between me and Gordon. Specific topics discussed include the distinction between ways of loving and causes of loving, the value of ways of loving and the value of the causes of loving, and whether or not the ideal of robust love attachments can be seen as compatible attachments causally dependent on love enhancements. (shrink)

One of the topics that often comes up in ethical discussions of deep brain stimulation (DBS) is the question of what impact DBS has, or might have, on the patient’s self. This is often understood as a question of whether DBS poses a “threat” to personal identity, which is typically understood as having to do with psychological and/or narrative continuity over time. In this article, we argue that the discussion of whether DBS is a “threat” to continuity over time is (...) too narrow. There are other questions concerning DBS and the self that are overlooked in discussions exclusively focusing on psychological and/or narrative continuity. For example, it is also important to investigate whether DBS might sometimes have a positive (e.g. a rehabilitating) effect on the patient’s self. To widen the discussion of DBS, so as to make it encompass a broader range of considerations that bear on DBS’s impact on the self, we identify six features of the commonly used concept of a person’s “true self”. We apply these six features to the relation between DBS and the self. And we end with a brief discussion of the role DBS might play in treating otherwise treatment-refractory anorexia nervosa. This further highlights the importance of discussing both continuity over time and the notion of the true self. (shrink)

In this chapter, I use the expression “robotic animism” to refer to the tendency that many people have to interact with robots as if the robots have minds or a personality. I compare the idea of robotic animism with what philosophers and psychologists sometimes refer to as “mind-reading”, as it relates to human interaction with robots. The chapter offers various examples of robotic animism and mind-reading within different forms of human-robot interaction, and it also considers ethical and prudential arguments for (...) and against attributing minds and a personality to robots. In the last section of the chapter, I also consider the intriguing question of whether any robots that exist today could be said to have some sort of minds in some non-trivial sense. (shrink)

Reviewed Works:Gaisi Takeuti, Proof Theory.Georg Kreisel, Proof Theory: Some Personal Recollections.Wolfram Pohlers, Contributions of the Schutte School in Munich to Proof Theory.Stephen G. Simpson, Subsystems of $\mathbf{Z}_2$ and Reverse Mathematics.Solomon Feferman, Proof Theory: A Personal Report.

According to Haidt’s “social intuitionist model”, empirical moral psychology supports the following conclusion: intuition comes first, strategic reasoning second. Critics have responded by arguing that intuitions can depend on non-conscious reasons, that not being able to articulate one’s reasons doesn’t entail not being responsive to reasons, and that the relations between intuitions and reasoning can be truth-tracking and principled in ways overlooked by Haidt. This debate involves a false dichotomy: that either reasoning is truth-tracking, or else our reasoning is purely (...) strategic and manipulative in nature. Reason-giving also, I argue, performs other important functions in moral and social life. A robust willingness to offer reasons in favor of our convictions is itself a virtue we seek and appreciate in others. Others’ willingness to reason with us is itself a good we enjoy at their hands, or that they confer upon us. What we give each other in being willing and determined to reason together is, among other things, respect for, and good-will towards, each other. (shrink)