ENHANCING LOVE? © 2020 ｲ Philosophy and Public Issues (New Series), Vol. 10, No. 3 (2020): 93-151 Luiss University Press E-ISSN 2240-7987 | P-ISSN 1591-0660 What is love? Can it be chemically modified? Should it be? Reply to commentaries Brian D. Earp and Julian Savulescu e are grateful to Robbie Arrell, Lotte Spreeuwenberg, Katrien Schaubroeck, Allen Buchanan, and Mirko D. Garasic for their commentaries on our recent book, Love Drugs: The Chemical Future of Relationships. 1 To keep our reply focused, we will address just some of the main points from each paper. We will also try to keep the conversation going by pushing back on certain claims or elaborating on valuable insights raised by our colleagues. We begin by exploring what love is and whether it can be chemically modified. We then focus on questions about the ethics of attempting such modification, both at the level of the individual or couple and at the level of society. We conclude with some summary observations and big-picture reflections about the future of this debate. 1 See Earp and Savulescu 2020a. The UK version is Love Is the Drug: The Chemical Future of Our Relationships, published by Manchester University Press. For a short précis of the book see Earp and Savulescu 2020b. Thank you to Sven Nyholm, Joan Ongchoco, Josh Knobe, Robbie Arrell, Elena Grewal, Mario Attie Picker, David Yaden, Margaret Clark, and Moya Mapps for valuable feedback on an earlier draft of this paper. Please note that we will mostly be using the singular ｶWhe\ｷ conVWUXcWion WhUoXghoXW, foU UeaVonV diVcXVVed in EaUp 2021. W