Jonathan Schaffer is an American philosopher specializing in metaphysics and also working in epistemology, mind, and language.
In that period he was awarded the Philosophy of Science Recent PhD Essay Contest in 2001, and the Young Epistemologist Prize in 2002.
[2] In 2007, Schaffer accepted a permanent research position at the Australian National University, and was described as "one of philosophy's most creative and interesting younger figures".
[3] He subsequently won awards for two papers published that year, the American Philosophical Association's 2008 Article Prize, for "Knowing the Answer" in Philosophy and Phenomenological Research, and the Australasian Journal of Philosophy's 2008 Best Paper Award, for "From Nihilism to Monism".
"Monism: The Priority of the Whole"[9] also contains his Argument from Gunk, according to which mereological atoms cannot be fundamental due to the possibility of infinitely divisible matter.