Alexander Pruss's Blog

According to the principle of existential inertia: If x exists at t 1 and t 2  >  t 1 and there is no cause of x ’s not existing at ...

For a while I’ve speculated that making ontological sense of quantum mechanics requires introducing a global entity into our ontology to gro...

I find myself going back and forth between substantivalism and relationalism about spacetime. On a substantivalist theory, the points of spa...

Some people believe in an absolute present. An absolute present would define a privileged absolute reference frame. Suppose that there is an...

Here is a Newtonian intuition: Space and time themselves are unaffected by the activities of spatiotemporal beings. General Relativity s...

A five kilogram object has the determinable mass with the determinate mass of 5 kg . The determinate mass of 5 kg is a property that is on...

According to the doctrine of existential inertia, objects have a metaphysical tendency to continue existing absent interference. Existential...

Typical causal theories of time say that the order of time is determined by the order of causal relationships between events in time. This t...

When people first hear of General Relativity and the idea that spacetime is curved, they naturally imagine a higher-dimensional uncurved spa...