Alexander Pruss's Blog

Suppose I am designing a simple vacuuming robot not unlike a Roomba, but a little more intelligent. I might set up the robot to have mu...

I have defended at length the idea that metaphysical possibility is grounded in the causal powers of things. It just occurred to...

Some people think that for C to explain E , P ( E | C ) must be high. This is false. Suppose two events E 1 and E 2 have proba...

This is an oldish argument, inspired by a student comment, but I kind of like my present formulation of it. Start with this fine ...

Suppose I have a sore knee and a doctor asks me to try to lift my leg to see if I can do so. So I try, and let's say I succeed. Di...

If tauntauns (i.e., creatures relevantly like this ) existed, they would be animals. If tauntauns existed, they wouldn't be ...

Suppose that you are hooked up to a button which, if pressed, will induce in you a desire for a flash of green light followed by...

I've been re-reading Samuel Clarke's cosmological argument . Here's a version of his argument: Anything that has a c...

There is no salvation apart from faith in Christ. But what about those who haven't heard of Christ? A standard story is that...

Yesterday, at a prayer service responding to various evils, the chaplain talked of us as living in an unfinished world. I was ve...

I am probably the only person interested in this sort of thing, but in case anybody has an old PalmOne infrared keyboard and for the sake of...

Zeus is a godlike being. However, if God created Zeus with all of Zeus's godlikeness, Zeus wouldn't be a god. Zeus would merel...

Over time, it has come to be the case that while I tell a significant number of people—my students and children—what to do, there are few p...

Causal finitism says that nothing can have infinitely many things in its causal history. Suppose causal finitism is false. Then ...

Suppose I am assigned to write a book with infinitely many pages. Luckily for me, the past is infinite. Then I could have accompl...