Alexander Pruss's Blog

Alice has lived forever in a universe with an infinite road that has a beginning and no end, and is marked every mile. Every day of her life...

The Hume-Edwards Principle (HEP) says: If you’ve explained every item in a collection, you’ve explained the whole collection of items. T...

Start with these assumptions: Laws of nature are grounded in the powers of things. (I.e., Aristotelian picture of laws.) Space can be infi...

Infinite fair lotteries are well-known to be paradoxical. Let's say that an infinite fair lottery is played twice with tickets 1,2,3,......

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...

Crucial to the Kalaam argument is showing that the universe has only a finite past. A standard approach is: If the universe has...

I am now thinking the following principle is likely to be true: (NoInfDep) No event can irreducibly depend on infinitely many things. This...

I wonder if this very neat argument can't be used to provide another Grim Reaper style argument against an infinite past? The argumen...

I've been telling people about this paper by Rob Koons, defending a grim-reaper based Kalaam cosmological argument, but I didn't r...

I am occasionally asked what I think about actual infinities.  Mainly because of a  Grim Reaper argument , but also because of the bob argum...

A Grim Reaper (GR) timed to go off at t 0 is an entity which does the following at exactly t 0 . If Fred is not alive at t 0 , ...

Here is another counterexample to the claim that it is impossible to form a concrete and actual infinity through successive addition. ...

Here is an argument that it is possible for an infinite number of objects to come into existence by successive addition, contrary to ...