 A final response to the problem does not expand the notion of the physical as much as it restricts the scope of physicalism to properties of a certain sort. One suggestion along these lines has been made by a number of writers (e.g. Rabin 2020, following Dasgupta 2015) in the context of grounding physicalism, though perhaps the underlying idea can be extended to other varieties as well. They suggest that grounding physicalism, which we formulated above as (7), should be revised to take the following form: