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Single Idea 17658

[filed under theme 14. Science / B. Scientific Theories / 3. Instrumentalism ]

Full Idea

To use a digital thermometer with readings in tenths of a degree is to recognise no temperature as lying between 90 and 90.1 degrees.

Gist of Idea

Users of digital thermometers recognise no temperatures in the gaps

Source

Nelson Goodman (Ways of Worldmaking [1978], 1.4d)

Book Ref

Goodman,Nelson: 'Ways of Worldmaking' [Hackett 1984], p.15


A Reaction

This appears to be nonsense, treating users of digital thermometers as if they were stupid. No one thinks temperatures go up and down in quantum leaps. We all know there is a gap between instrument and world. (Very American, I'm thinking!)


The 14 ideas with the same theme [scientific truth is just what works in our theories]:

Pragmatism says all theories are instrumental - that is, mental modes of adaptation to reality [James]
True thoughts are just valuable instruments of action [James]
Special relativity, unlike general relativity, was operationalist in spirit [Putnam on Einstein]
All linguistic forms in science are merely judged by their efficiency as instruments [Carnap]
The 'Tractatus' is instrumentalist about laws of nature [Wittgenstein, by Armstrong]
Users of digital thermometers recognise no temperatures in the gaps [Goodman]
For Quine, theories are instruments used to make predictions about observations [Quine, by O'Grady]
For the instrumentalists there are no scientific explanations [Salmon]
Naïve operationalism would have meanings change every time the tests change [Putnam]
Instrumentalism normally says some discourse is useful, but not genuinely true [Horgan,T]
Operationalism defines concepts by our ways of measuring them [Mares]
Instrumentalists regard theories as tools for prediction, with truth being irrelevant [Bird]
Theories aren't just for organising present experience if they concern the past or future [Gorham]
For most scientists their concepts are not just useful, but are meant to be true and accurate [Gorham]