8 ideas
22520 | You can't reason someone out of an irrational opinion [Swift] |
Full Idea: Reasoning will never make a man correct an ill opinion, which by reasoning he never acquired. | |
From: Jonathan Swift (Letters to a Young Clergyman [1720]) | |
A reaction: It would be hard to prove this, and someone full of irrational beliefs may have their rationality awakened by a sound argument. Nice remark, but too pessimistic. |
16065 | Constitution is identity (being in the same place), or it isn't (having different possibilities) [Wasserman] |
Full Idea: Some insist that constitution is identity, on the grounds that distinct material objects cannot occupy the same place at the same time. Others argue that constitution is not identity, since the statue and its material differ in important respects. | |
From: Ryan Wasserman (Material Constitution [2009], Intro) | |
A reaction: The 'important respects' seem to concern possibilities rather than actualities, which is suspicious. It is misleading to think we are dealing with two things and their relation here. Objects must have constitutions; constitutions make objects. |
16067 | Constitution is not identity, because it is an asymmetric dependence relation [Wasserman] |
Full Idea: For those for whom 'constitution is not identity' (the 'constitution view'), constitution is said to be an asymmetric relation, and also a dependence relation (unlike identity). | |
From: Ryan Wasserman (Material Constitution [2009], 2) | |
A reaction: It seems obvious that constitution is not identity, because there is more to a thing's identity than its mere constitution. But this idea makes it sound as if constitution has nothing to do with identity (chalk and cheese), and that can't be right. |
16069 | There are three main objections to seeing constitution as different from identity [Wasserman] |
Full Idea: The three most common objections to the constitution view are the Impenetrability Objection (two things in one place?), the Extensionality Objection (mereology says wholes are just their parts), and the Grounding Objection (their ground is the same). | |
From: Ryan Wasserman (Material Constitution [2009], 2) | |
A reaction: [summary] He adds a fourth, that if two things can be in one place, why stop at two? [Among defenders of the Constitution View he lists Baker, Fine, Forbes, Koslicki, Kripke, Lowe, Oderberg, N.Salmon, Shoemaker, Simons and Yablo.] |
16068 | The weight of a wall is not the weight of its parts, since that would involve double-counting [Wasserman] |
Full Idea: We do not calculate the weight of something by summing the weights of all its parts - weigh bricks and the molecules of a wall and you will get the wrong result, since you have weighed some parts more than once. | |
From: Ryan Wasserman (Material Constitution [2009], 2) | |
A reaction: In fact the complete inventory of the parts of a thing is irrelevant to almost anything we would like to know about the thing. The parts must be counted at some 'level' of division into parts. An element can belong to many different sets. |
16074 | Relative identity may reject transitivity, but that suggests that it isn't about 'identity' [Wasserman] |
Full Idea: If the relative identity theorist denies transitivity (to deal with the Ship of Theseus, for example), this would make us suspect that relativised identity relations are not identity relations, since transitivity seems central to identity. | |
From: Ryan Wasserman (Material Constitution [2009], 6) | |
A reaction: The problem here, I think, focuses on the meaning of the word 'same'. One change of plank leaves you with the same ship, but that is not transitive. If 'identical' is too pure to give the meaning of 'the same' it's not much use in discussing the world. |
19729 | 'Modal epistemology' demands a connection between the belief and facts in possible worlds [Black,T] |
Full Idea: In 'modal epistemologies' a belief counts as knowledge only if there is a modal connection - a connection not only to the actual world, but also to other non-actual possible worlds - between the belief and the facts of the matter. | |
From: Tim Black (Modal and Anti-Luck Epistemology [2011], 1) | |
A reaction: [Pritchard 2005 seems to be a source for this] This sounds to me a bit like Nozick's tracking or sensitivity theory. Nozick is, I suppose, diachronic (time must pass, for the tracking), where this theory is synchronic. |
19728 | Gettier and lottery cases seem to involve luck, meaning bad connection of beliefs to facts [Black,T] |
Full Idea: The protagonists in Gettier cases and in lottery cases fail to have knowledge because their beliefs are true simply as a matter of luck, where this means that their beliefs themselves are not appropriately connected to the facts. | |
From: Tim Black (Modal and Anti-Luck Epistemology [2011], 1) | |
A reaction: The lottery problem is you correctly believe 'my ticket won't win the lottery' even though you don't seem to actually know it won't. Is the Gettier problem simply the problem of lucky knowledge? 'Luck' is a rather vague concept. |