Alexander Pruss's Blog

Consider a variant of my teenage Hitler case . You’re a hospital anesthetist and teenage Hitler is about to have an emergency appendectomy. ...

Consider this formulation of the central problem of a pluralist democracy: How to have a democracy where there is a broad plurality of set...

It would be nice to define the internal time of a substance in terms of the causal order of its accidents. For each mode (i.e., accident or...

This is a minor twist on the previous post . Magnetic core memory (long obsolete!) stored bits in the magnetization of tiny little rings. ...

In Thomson’s Lamp, a lamp is (say) off at 10:00, and the switch is toggled at 10:30, 10:45, 10:52.5, and so on, and we are asked whether the...

Consider these three theses: There is at most one empty world, i.e., world where nothing exists. Presentism is true. Something can come ...

Suppose I insisted that the Big Bang happened due to a cat generating an extremely high energy hairball. You would think I’m crazy. But why ...

One obvious internal good of a game is victory. But victory generally isn’t everything, even when one restricts oneself to the internal good...

Let’s suppose that the universe has a beginning and the tensed theory of propositions (which is accepted by most A-theorists) is true. Then ...

I got myself a 3M 6300 half-face mask with P100 filters. Unfortunately, these have an exhalation valve so that any germs one has are breathe...

The typical examples of vagueness in the literature are ones where it is vague whether a subject has a property (e.g., vagueness) or whether...

Rob Koons' and my article "Skepticism and the Principle of Sufficient Reason", forthcoming in Philosophical Studies , is now o...

Let’s assume: Faster-than-light travel is metaphysically possible in a special relativistic world. And let’s assume: In a special rela...

Suppose the state thought it had good reason to force me to undergo a medical procedure that I believed to be immoral. The state would have ...

If we are created by a loving God, there is good reason to expect that what is good for us to believe—maybe even good for us as moral agents...