The physical and/or intrinsic connection approach to causation has become p
rominent in the recent literature, with Salmon, Dowe, Menzies, and Armstron
g among its leading proponents. I show that there is a type of causation, c
ausation by disconnection, with no physical or intrinsic connection between
cause and effect. Only Hume-style conditions approaches and hybrid conditi
ons-connections approaches appear to be able to handle causation by disconn
ection. Some Hume-style, extrinsic, absence-relating, necessary and/or suff
icient condition component of the causal relation proves to be needed.