  This chapter argues that the general philosophy of science should learn
metaphilosophical lessons from the case of metaphysical underdetermination, as
it occurs in non-relativistic quantum mechanics. Section 2 presents the
traditional discussion of metaphysical underdetermination regarding the
individuality and non-individuality of quantum particles. Section 3 discusses
three reactions to it found in the literature: eliminativism about
individuality; conservatism about individuality; eliminativism about objects.
Section 4 wraps it all up with metametaphysical considerations regarding the
epistemology of metaphysics of science.
