This article defends two claims. First, humans could be in relationships characterised by hate with some robots. Second, it matters that humans could hate robots, as this hate could wrong the robots (by leaving them at risk of mistreatment, exploitation, etc.). In defending this second claim, I will thus be accepting that morally considerable robots either currently exist, or will exist in the near future, and so it can matter (morally speaking) how we treat these robots. The arguments presented in (...) this article make an important original contribution to the robo-philosophy literature, and particularly the literature on human–robot relationships (which typically only consider positive relationship types, e.g., love, friendship, etc.). Additionally, as explained at the end of the article, my discussions of robot hate could also have notable consequences for the emerging robot rights movement. Specifically, I argue that understanding human–robot relationships characterised by hate could actually help theorists argue for the rights of robots. (shrink)

In this reply, I discuss some important issues raised in two commentaries. One relates to the distinction between hate and revenge, which also touches upon the more general problem of the usefulness of distinguishing between various related emotions. I argue that emotion researchers need to define specific emotions carefully in order to be able to examine such emotions without necessarily using emotion words. A second comment focusses on the factors influencing the development of hate over time. The question is whether (...) there is an intrapersonal mechanism leading to an increase or decrease of hate over time. I think it is the social environment that is essential in the maintenance of hate. (shrink)

Unlike Yiddish (fargin) and Sanskrit (muditā), English has no single word to describe the practice of sharing someone else’s joy at their success. Sympathetic joy has also escaped attention in philosophy. We are familiar with schadenfreude, begrudging, envy, jealousy, and other terms describing either (a) pleasure at someone else’s misfortune or (b) displeasure at someone else’s good fortune. But what, exactly, is sympathetic joy? I argue that it is a short-term or long-term feeling of great delight at another’s good fortune, (...) requiring no more than minimal understanding of the relevant person and event. It is intensified relative to understanding, sharing, and positive disposal. It is importantly different from empathetic emotions and also from vicarious pride. It may be groupdirected. Empirical research suggests it occurs fairly often, activates the brain in the same way as does sympathetic sadness, and may increase our well-being. It is primarily not a reactive attitude (an emotional reaction to good or bad will), but, rather, a sign of good will toward another. (shrink)