Unrestricted Quantification and Reality: Reply to Kim Takashi Yagisawa Received: 24 June 2011 /Accepted: 14 July 2011 / Published online: 23 July 2011 # Springer Science+Business Media B.V. 2011 Abstract In my book, Worlds and Individuals, Possible and Otherwise, I use the novel idea of modal tense to respond to a number of arguments against modal realism. Peter van Inwagen’ s million-carat-diamond objection is one of them. It targets the version of modal realism by David Lewis and exploits the fact that Lewis accepts absolutely unrestricted quantification. The crux of my response is to use modal tense to neutralize absolutely unrestricted quantification. Seahwa Kim says that even when equipped with modal tense, I am unsuccessful, given my view of reality and the proper use of modal tense in speaking of reality. I counter her attempt at resurrecting van Inwagen’ s objection and clarify how we should use modal tense and how we should talk about reality. Keywords Modal realism . Unrestricted quantification . Modal tense . Reality . Existence . Possible world Seahwa Kim has put her finger on an important aspect of my modal metaphysical proposal in articulating her critique of my handling of one of Peter van Inwagen’ s objections to modal realism. In this note, I shall separate different strands within her critique and elucidate my position. There is not actually a million-carat diamond but could have been one. So, a million-carat diamond does not exist a at the actual world but exists p at some non- actual possible world. So, according to me, a million-carat diamond is p real and also is a real. But a million-carat diamond is a not real. Therefore, I am wrong. This is Kim’ s argument. There is much to recommend in this argument, but I say that the premise that a million-carat diamond is a not real is false. Kim clearly sees that I am committed to saying this, as she remarks that whenever someone who adopts my ontology of possible objects along with absolutely unrestricted Acta Anal (2012) 27:77–79 DOI 10.1007/s12136-011-0129-x T. Yagisawa (*) Department of Philosophy (8253), California State University, Northridge 18111 Nordhoff Street, Northridge, CA 91330-8253, USA e-mail: takashi.yagisawa@csun.edu