3 ideas
7006 | Observing irrelevant items supports both 'all x are y' and 'all x are non-y', revealing its absurdity [Schofield,J] |
Full Idea: Although Hempel's raven paradox produces an absurdity of irrelevant observations, we can ignore it because (unlike good observations) observing a white handbag supports the contradictions of 'ravens are black' and 'ravens are non-black'. | |
From: Jonathan Schofield (talk [2005]), quoted by PG - Db (ideas) | |
A reaction: The idea of 'eliminating it from our enquiries' cannot be totally irrational (e.g. in detective work), but it is only seriously sensible in a restricted domain (such as a country house) |
5959 | Some philosophers say the soul is light [Plutarch] |
Full Idea: Some philosophers hold that the soul is in its essence light. | |
From: Plutarch (75: Is 'Live Unknown' a Wise Precept? [c.85], §6) | |
A reaction: A nice idea, to rival the stoic view that the soul is fire. It is understandable to propose that the soul is some sort of lightweight and fast moving matter. How else could thought be achieved physically? Nowadays, parallel processing is our only model. |
18033 | The meaning of a representation is its role in thought, perception or decisions [Block] |
Full Idea: According to conceptual role semantics, the meaning of a representation is the role of that representation in the cognitive life of the agent, for example, in perception, thought and decision-making. | |
From: Ned Block (Semantics, Conceptual Role [1998]) | |
A reaction: I never believe theories of this kind, because I always find myself asking 'what is the nature of this representation which enables it to play this role?'. |