Bill reading Shakespeare and Maureen singing Schubert satisfy/satisfies me [duplicate]

Which verb form is grammatically correct here? My intuition says 'satisfy' but a textbook I'm reading says otherwise (Core Syntax: A Minimalist Approach. If interested, a legal copy is available here).

This is actually interesting. I started to write a flip comment but then I thought about it a little more.

The truth is, it could go either way, depending on what you mean.

If you mean the two things are independently satisfying, use satisfy. Using A and B for shorthand, we get:

A satisfies me. B satisfies me. But A and B satisfy me.

If you mean both conditions happening at the same time are necessary for your satisfaction, creating a unitary satisfaction which would fail the satisfaction test if either were missing, choose satisfies.

A verbing and B verbing satisfies me.