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Full Idea
If one concept is 'better' than an earlier one, it is because it makes us aware of new variations and unknown resonances, it carries out unforeseen cuttings-out, it brings forth an Event that surveys (survole) us.
Gist of Idea
Concepts are superior because they make us more aware, and change our thinking
Source
G Deleuze / F Guattari (What is Philosophy? [1991], 1.1)
Book Ref
Deleuze/Guattari: 'What is Philosophy?' [Verso 1994], p.28
A Reaction
I don't get much of that, but it is certainly in tune with the Kuhn/Feyerabend idea that what science can generate is fresh visions, rather than precisely expanded truths. Personally I consider it dangerous nonsense, but I thought I ought to pass it on.