Maybe we can evolve our thinking. From pressure measured in Pa or N/m^2 to 3D. That is. From N/m^2 to N/m^3.
So the idea is that we stack together pressure areas. Then we get n * N/m^2 or N/m^3 if you will.
What an example of a pressure layer would look like. I don’t know. This is just the initial philosophical speculation.