display all the ideas for this combination of texts
13 ideas
17563 | The strong force pulls, but also pushes apart if nucleons get too close together [Inwagen] |
Full Idea: The strong force doesn't always pull nucleons together, but pushes them apart if they get too close. | |
From: Peter van Inwagen (Material Beings [1990], 07) | |
A reaction: Philosophers tend to learn their physics from other philosophers. But that's because philosophers are brilliant at picking out the interesting parts of physics, and skipping the boring stuff. |
1526 | Almost everyone except Plato thinks that time could not have been generated [Plato, by Aristotle] |
Full Idea: With a single exception (Plato) everyone agrees about time - that it is not generated. Democritus says time is an obvious example of something not generated. | |
From: report of Plato (works [c.375 BCE]) by Aristotle - Physics 251b14 |
17559 | Is one atom a piece of gold, or is a sizable group of atoms required? [Inwagen] |
Full Idea: A physicist once told me that of course a gold atom was a piece of gold, and a physical chemist has assured me that the smallest possible piece of gold would have to be composed of sixteen or seventeen atoms. | |
From: Peter van Inwagen (Material Beings [1990], 01) | |
A reaction: The issue is at what point all the properties that we normally begin to associate with gold begin to appear. One water molecule can hardly have a degree of viscosity or liquidity. |
17586 | At the lower level, life trails off into mere molecular interaction [Inwagen] |
Full Idea: The lives of the lower links of the Great Chain of Being trail off into vague, temporary episodes of molecular interaction. | |
From: Peter van Inwagen (Material Beings [1990], 18) | |
A reaction: His case involves conceding all sorts of vagueness to life, but asserting the utter distinctness of the full blown cases of more elaborate life. I don't really concede the distinction. |
17568 | A tumour may spread a sort of life, but it is not a life, or an organism [Inwagen] |
Full Idea: A tumour is not an organism (or a parasite) and there is no self-regulating event that is its life. It does not fill one space, but is a locus within which a certain sort of thing is happening: the spreading of a certain sort of (mass-term) life. | |
From: Peter van Inwagen (Material Beings [1990], 09) |
17581 | Being part of an organism's life is a matter of degree, and vague [Inwagen] |
Full Idea: Being caught up in the life of an organism is, like being rich or being tall, a matter of degree, and is in that sense a vague condition. | |
From: Peter van Inwagen (Material Beings [1990], 17) | |
A reaction: Van Inwagen is trying to cover himself, given that he makes a sharp distinction between living organisms, which are unified objects, and everything else, which isn't. There may be a vague centre to a 'life', as well as vague boundaries. |
17584 | Some events are only borderline cases of lives [Inwagen] |
Full Idea: There are events of which it is neither definitely true nor definitely false that those events are lives. I do not see how we can deny this. | |
From: Peter van Inwagen (Material Beings [1990], 18) | |
A reaction: Very frustrating, since this is my main objection to Van Inwagen's distinction between unified lives and mere collections of simples. Some boundaries are real enough, despite their vagueness, and others indicate that there is no real distinction. |
17569 | Unlike waves, lives are 'jealous'; it is almost impossible for them to overlap [Inwagen] |
Full Idea: A wave is not a 'jealous' event. Lives, however, are jealous. It cannot be that the activities of the Xs constitute at one and the same time two lives. Only in certain special cases can two lives overlap. | |
From: Peter van Inwagen (Material Beings [1990], 09) |
17570 | The chemical reactions in a human life involve about sixteen elements [Inwagen] |
Full Idea: There are sixteen or so chemical elements involved in those chemical reactions that collectively constitute the life of a human being. | |
From: Peter van Inwagen (Material Beings [1990], 09) |
17585 | Life is vague at both ends, but could it be totally vague? [Inwagen] |
Full Idea: Individual human lives are infected with vagueness at both ends. ...But could there be a 'borderline life'? | |
From: Peter van Inwagen (Material Beings [1990], 18) | |
A reaction: Van Inwagen says (p.239) that there may be wholly vague lives, though it would suit his case better if there were not. |
17567 | A flame is like a life, but not nearly so well individuated [Inwagen] |
Full Idea: A flame, though it is a self-maintaining event, does not seem to be nearly so well individuated as a life. | |
From: Peter van Inwagen (Material Beings [1990], 09) | |
A reaction: This is to counter the standard problem that if you attempt to define 'life', fire turns out to tick nearly all the same boxes. The concept of 'individuated' often strikes me as unsatisfactory. How does a bonfire fail to be individuated? |
17576 | If God were to 'reassemble' my atoms of ten years ago, the result would certainly not be me [Inwagen] |
Full Idea: If God were to 'reassemble' the atoms that composed me ten years ago, the resulting organism would certainly not be me. | |
From: Peter van Inwagen (Material Beings [1990], 13) | |
A reaction: What is obvious to Van Inwagen is not obvious to me. He thinks lives are special. Such examples just leave us bewildered about what counts as 'the same', because our concept of sameness wasn't designed to deal with such cases. |
17580 | One's mental and other life is centred on the brain, unlike any other part of the body [Inwagen] |
Full Idea: One's life - not simply one's mental life - is centered in the activity of the simples that virtually compose one's brain in a way in which it is not centered in the activity of any of the other simples that compose one. | |
From: Peter van Inwagen (Material Beings [1990], 15) | |
A reaction: This justifies the common view that 'one follows one's brain'. I take that to mean that my brain embodies my essence. I would read 'centered on' as 'explains'. |