Existential Inertia

My philosopher friend Bill Vallicella has me thinking about the difference between the God of classical theism and the God of Deism, with respect to creation.

In traditional theism, God creates the world and maintains the world's existence.

In Deism, God creates the world and leaves the world to exist on its own.

Deists therefore assume what Bill calls "existential inertia," which Bill explains as follows: "an existing thing continues to exist on its own without external assistance unless acted upon by an external annihilatory force."

I posted two comments on his blogpost about this concept, and showed my ignorance, but I think that I understand it now. Go to the link, if interested.