It is sometimes claimed that we cannot know whether suffering is ontologically prevalent — for example, we cannot rule out that suffering might exist in microorganisms such as bacteria, or even in the simplest physical processes. Relatedly, it has been argued that we cannot trust common-sense views and intuitions regarding the physical basis of suffering.

I agree with the spirit of these arguments, in that I think it is true that we cannot definitively rule out that suffering might exist in b...