Alexander Pruss's Blog

The Company axiom of mereology holds that an object cannot have only one proper part. This is a weaker version of the (Weak) Supplementation...

It would be appealing to be able to hold on to all of the following: Four-dimensionalism. Elementary particles are simples. There is onl...

A number of contemporary Aristotelians hold to the view that when a fundamental particle becomes or ceases to be a part of an organism, the ...

I have a weird view: when a dog or another substance ceases to exist, all its particles cease to exist, being replaced by new particles with...

Much (but not all) contemporary philosophy of mind is written as if microphysics were fundamental physics. But as far as I know, only on tho...

My intuition is that quantum physics presents a picture of reality on which fundamental particles rarely if ever exist simpliciter . Most of...

A perdurantist who believes that particles are fundamental will typically think that the truly fundamental physical entities are instantaneo...

It is known that perdurantists, who hold that objects persisting in time are made of infinitely thin temporal slices, have to deny that fund...

Assume a particle-based fundamental physics. Then the non-living things in the universe outnumber the living by many orders of magnitude. Bu...

The following seems to be intuitively plausible: If an object is wholly located in a region R but is not wholly located in a subregion S , ...

This argument is valid and every premise is plausible: An elementary particle is located at every point where its wavefunction is non-zero. ...

There are something like 10 80 individual particles and only something like 10 2 kinds of particles. It seems an incredible coincidence; s...

In Aristotelian ontology the matter and parts of a substance get their being from their substance. But now we have a problem: we consta...

Isn't it interesting that we are currently don't know whether the fundamental physical entities are the tiniest of things...

I used to worry for Aristotelian reasons about the particles making up my body. The worry went something like this: Elementary par...

As far back into my childhood as I remember thinking about such things, I thought of the physical objects around me as made up of...

Some Aristotelians believe the following thesis: When a bit of matter comes to be a part of a substance, it ceases to exist. I.e., the bit...