 According to primitivism about the fundamental, we cannot define fundamentality. But we may be able to characterize it, and it is to be expected that  (RI)  and  (CMB)  are likely candidates in this regard. This type of view may be what Fine (2001: 26) gestures towards, when he remarks that it is the world’s intrinsic structure that is fundamental. One way to develop the idea is by defining absolute fundamentality in terms of relative fundamentality and introducing a primitive notion of “Reality” as it is in itself (Fine 2001; see also Fine 2009). Note however that Fine proposes this notion in connection to the debate between realism and anti-realism, whereby “Reality” may be understood as objectivity. So, it is not entirely clear that we can understand fundamentality in terms of this notion.