Combining Texts

Ideas for 'works', 'The Relation of Sense-Data to Physics' and 'Conceptions of Consequence'

unexpand these ideas     |    start again     |     choose another area for these texts

display all the ideas for this combination of texts


11 ideas

12. Knowledge Sources / B. Perception / 4. Sense Data / b. Nature of sense-data
No sensibile is ever a datum to two people at once [Russell]
     Full Idea: No sensibile is ever a datum to two people at once.
     From: Bertrand Russell (The Relation of Sense-Data to Physics [1914], §VII)
     A reaction: So a loud bang has to broken down into an almost infinite number of sound sensibilia - each one presumably the size of the apperture of a small ear. This is beginning to sound a bit silly.
Russell held that we are aware of states of our own brain [Russell, by Robinson,H]
     Full Idea: Russell held that we are aware of states of our own brain.
     From: report of Bertrand Russell (The Relation of Sense-Data to Physics [1914]) by Howard Robinson - Perception 1.1
     A reaction: I can't say that I had ever intepreted Russell in this way, but it is a wonderfully thought-provoking idea. All the time that I thought I was looking at a table, I was just looking at my own brain, and drawing an unspoken inference that a table caused it.
Sense-data are qualities devoid of subjectivity, which are the basis of science [Russell, by Deleuze/Guattari]
     Full Idea: Rather than oppose sensory knowledge and scientific knowledge, we should identify the sensibilia that are peculiar to science. This is what Russell did when he evoked sense-data, qualities devoid of all subjectivity.
     From: report of Bertrand Russell (The Relation of Sense-Data to Physics [1914]) by G Deleuze / F Guattari - What is Philosophy? 2.5
     A reaction: An interesting observation. Russell is striking for his lack of interest in theories of arts and ethics, and his whole work focuses on understanding the scientific view. What is involved in sensibilia is a key modern issue (e.g. McDowell).
Sense-data are not mental, but are part of the subject-matter of physics [Russell]
     Full Idea: I regard sense-data as not mental, and as being, in fact, part of the actual subject-matter of physics.
     From: Bertrand Russell (The Relation of Sense-Data to Physics [1914], §III)
     A reaction: Russell had clearly given himself an ontological problem with the introduction of sense-data, and this is his drastic solution. In 1912 his account seems ambiguous between sense-data being mental and being physical.
Sense-data are objects, and do not contain the subject as part, the way beliefs do [Russell]
     Full Idea: Logically a sense-datum is an object, a particular of which the subject is aware; it does not contain the subject as a part, as for example beliefs and volitions do.
     From: Bertrand Russell (The Relation of Sense-Data to Physics [1914], §IV)
     A reaction: This very firmly rejects any notion that a sense-datum is mental. It is a left as a strange sort of object which gets as close as it is possible to get to the 'borders' of the mind, without actually becoming part of it.
Sense-data are usually objects within the body, but are not part of the subject [Russell]
     Full Idea: The sense-datum is an external object of which in sensation the subject is aware; it is true that the sense-datum is in many cases in the subject's body, but the subject's body is as distinct from the subject as tables and chairs are.
     From: Bertrand Russell (The Relation of Sense-Data to Physics [1914], §IV)
     A reaction: This is probably Russell's clearest statement of the nature of sense-data, which are objects within the subjects body, but are not part of the mind. So once again we come up against the question of their ontology. Are they made of neurons?
12. Knowledge Sources / B. Perception / 4. Sense Data / c. Unperceived sense-data
We do not know whether sense-data exist as objects when they are not data [Russell]
     Full Idea: We do not know, except by means of more or less precarious inferences, whether the objects which are at one time sense-data continue to exist at times when they are not data.
     From: Bertrand Russell (The Relation of Sense-Data to Physics [1914], §II)
     A reaction: Note that he actually refers to sense-data as 'objects'. It shows how thoroughly reified they are in his theory if they have the possibility of independent existence. This invites the question 'what are they made of?'
'Sensibilia' are identical to sense-data, without actually being data for any mind [Russell]
     Full Idea: I shall give the name 'sensibilia' to those objects which have the same metaphysical and physical status as sense-data without necessarily being data to any mind.
     From: Bertrand Russell (The Relation of Sense-Data to Physics [1914], §III)
     A reaction: This is his response to the problem of whether sense-data can exist independently of experience, which was unclear in 1912. Presumably sensibilia are objects which are possible sources of experience, but that seems to cover most objects.
Ungiven sense-data can no more exist than unmarried husbands [Russell]
     Full Idea: We cannot ask, 'Can sense-data exist without being given?' for that is like asking, 'Can husbands exist without being married?'
     From: Bertrand Russell (The Relation of Sense-Data to Physics [1914], §III)
     A reaction: This follows hard on Idea 6460, which introduces the idea of 'sensibilia' for things which are like sense-data, but are not 'given'. This is a new distinction in 1914, which he had not made in 1912.
12. Knowledge Sources / B. Perception / 4. Sense Data / d. Sense-data problems
Individuating sense-data is difficult, because they divide when closely attended to [Russell]
     Full Idea: There is some difficulty in deciding what is to be considered one sense-datum: often attention causes divisions to appear where, so far as can be discovered, there were no divisions before.
     From: Bertrand Russell (The Relation of Sense-Data to Physics [1914], §II)
     A reaction: This was, I suspect, why Russell had dropped the idea of sense-data by 1921. He does, however, say that they are the last unit in analysis, rather than being the most basic unit of perception. In other words, they are purely theoretical.
Sense-data may be subjective, if closing our eyes can change them [Russell]
     Full Idea: One reason often alleged for the subjectivity of sense-data is that the appearance of a thing itself may change when we find it hard to suppose that the thing itself has changed - as when we shut our eyes, or screw them up to make things look double.
     From: Bertrand Russell (The Relation of Sense-Data to Physics [1914], §VIII)
     A reaction: Russell firmly denies that they are subjective. These examples are also said to support to proposed existence of sense-data in the first place, since they show the gap between appearance and reality.