Alexander Pruss's Blog

Bohm’s interpretation of quantum mechanics has two ontological components: It has the guiding wave—the wavefunction—which dynamically evolve...

From: Every G is H it seems we should be able to infer for any x : If x is G , then x is H . This pretty much forces one to read “I...

When I taught calculus, the average grade on the final exam was around 55%. One could make the case that this means that our grading system ...

Suppose Canada is dissolved, and a country is created, with the same people, in the same place, with the same name, symbols, and political s...

There are some sets we need just because of the fundamental axioms of set theory, whatever these are (ZF? ZFC?). Probably, we could satisfy ...

We think of Euclidean space as isotropic: any two points in space are exactly alike both intrinsically and relationally, and if we rotated o...

Here’s a curious tale about sets and possible worlds: What sets there are varies between metaphysically possible worlds and for any possible...

It’s wrong to look down on people simply for having physical or intellectual disabilities. But it doesn’t seem wrong to look down on, say, s...

Suppose Joe Shmoe died on February 17, 1982, sadly leaving no relatives or friends behind. Every year, on February 17, the anniversary of Sh...

Paper is here . Abstract: The Traveling Minds interpretation of Quantum Mechanics is a no-collapse interpretation on which the wavefunctio...

Some people are attracted to nihilism about proper parthood: no entity has proper parts. I used to be rather attracted to that myself, but I...

It’s non-instrumentally good for me to believe truly and it’s non-instrumentally bad for me to believe falsely. Does that give you non-instr...

I've acquired a 3D printer (a used DaVinci 1.0a, hacked by the previous user to have custom firmware), and I've been having fun with...

Suppose I could get into a time machine and instantly travel forward by a hundred years. Then over the next hundred (external) years I don’t...