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Single Idea 16490

[from 'Human Knowledge: its scope and limits' by Bertrand Russell, in 10. Modality / A. Necessity / 6. Logical Necessity ]

Full Idea

The impossibility of seeing two colours simultaneously in a given direction feels like a logical impossibility.

Gist of Idea

Some facts about experience feel like logical necessities

Source

Bertrand Russell (Human Knowledge: its scope and limits [1948], 9)

Book Reference

Russell,Bertrand: 'Human Knowledge' [Routledge 2009], p.113


A Reaction

I presume all necessities feel equally necessary. If we distinguish necessities by what gives rise to them (a view I favour) then how strong they 'feel' will be irrelevant. We can see why Russell is puzzled by the phenomenon, though.