Whilst the combination problem focuses on the challenge of getting our consciousness (and the consciousness of non-human animals) out of consciousness at the level of fundamental physics, Damian Aleksiev and Miri Albahari (independently) have focused on the challenge of getting the physical world, or certain aspects of it, out of the facts about fundamental consciousness.[25] In what she calls the ‘Inner-Outer Gap Problem’ Albahari (2022) worries that in standard versions of panpsychism, experiential properties ‘face the wrong way’ for this purpose. The experiential properties that are supposed to realise observer-independent properties, such as mass or charge, are accessible only to the subject undergoing them rather than to external observers. On this basis, Albahari argues that it is incoherent to suppose that facts about the ‘inner-facing’ experiential properties of micro-level subjects could somehow constitute the ‘outer-facing’ observer-independent objects. Aleksiev’s (2021) ‘Missing Entities Problem’ focuses on specific features of fundamental physical reality, according to popular views in theoretical physics. More specifically, Aleksiev doubts whether the following phenomena could be intelligibly grounded in facts about consciousness: spacetime, a high-dimensional quantum state, and timeless entities referred to in certain quantum gravity theories.