Alexander Pruss's Blog

Suppose we have two infinite collections of items L n and R n indexed by integers n , and suppose we have a total preorder ≤ on all the it...

It’s tempting to say that what justifies lethal self-defense is a wrongful lethal threat, perhaps with voluntariness and/or culpability adde...

Start with this intuition: Every sentence of first order logic with the successor predicate s ( x , y ) (which says that x is the natural...

Branching actualist theories of modality say that metaphysical possibility is grounded in the powers of actual substances to bring about dif...

Suppose you have inherited a heavily-automated house with a DIY voice control system made by an eccentric relative who programmed various fu...

I’m thinking about the kinds of finitisms there are. Here are some: Ontic finitism: There can only be finitely many entities. Concrete fi...

Here's my TwinGalaxies record run of Eggsplode!  from last year. It's using NES emulation (fceumm, with my Power Pad support code) ...

A typical Bayesian update gets one closer to the truth in some respects and further from the truth in other respects. For instance, suppose ...

This argument is an intuition-pump. I don’t know if it can be made rigorous. Start with some observations. Let Q 0 be the nomic parameters...

I think some people feel that more immediate effects count for more than more remote ones in moral choices, including in the context of the ...

Epiphenomenalists think that there are non-physical qualia that are causally inert: all causes are physical. The main reason epiphenomenalis...

Here is an interesting special case of Ockham’s Razor: If we find that of nomic necessity whenever A occurs, so does B , then it is reaso...

Let’s assume that lethal self-defense is permissible. Such self-defense requires an aggressor . There is a variety of concepts of an aggress...

You know what it’s like to see green. Close your eyes. Do you still know what it’s like to see green? I think so. Maybe you got lucky and ...

All facts completely reducible to physics are first-order facts. All facts completely explained by first-order facts are themselves comple...