Planck's principle

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In sociology of scientific knowledge, Planck's principle is the view that scientific change does not occur because individual scientists change their mind, but rather that successive generations of scientists have different views.

Contents

Formulation

This was formulated by Max Planck: [1]

A new scientific truth does not triumph by convincing its opponents and making them see the light, but rather because its opponents eventually die and a new generation grows up that is familiar with it ...

An important scientific innovation rarely makes its way by gradually winning over and converting its opponents: it rarely happens that Saul becomes Paul. What does happen is that its opponents gradually die out, and that the growing generation is familiarized with the ideas from the beginning: another instance of the fact that the future lies with the youth.

— Max Planck, Scientific autobiography, 1950, p. 33, 97

Colloquially, this is often paraphrased as "Science progresses one funeral at a time".

Adoption

Planck's quote has been used by Thomas Kuhn, Paul Feyerabend, Moran Cerf and others to argue scientific revolutions are non-rational, rather than spread through "mere force of truth and fact". [2] [3] [4] [5] [6]

Eric Hoffer, the longshoreman-philosopher, cites Planck's Principle in support of his views on drastic social change and the nature of mass movements. According to Hoffer's May 20, 1959 journal entry, [7] the successful navigation of drastic change requires "endowment ... with a new identity and a sense of rebirth" as was the case with Moses and the Exodus. Only after forty years in the desert could Moses transform Hebrew slaves into free men, that is, a new generation:

"Moses discovered that no migration, no drama, no spectacle, no myth, and no miracles could turn slaves into free men. It cannot be done. So he led the slaves back into the desert, and waited forty years until the slave generation died, and a new generation, desert born and bred, was ready to enter the promised land.

"All revolutionary leaders, though they fervently preach change, know that people cannot change. Unlike Moses they have neither a handy desert nor the patience to wait forty years. Hence the purges and the terror to get rid of the grown-up generation.

"It is of interest that even in the objective world of science man's mind is not more malleable than in the habit-bound world of everyday life. Max Planck maintained that a new scientific truth does not triumph by convincing its opponents, but because its opponents eventually die, and a new generation grows up that is familiar with it. Here, too, you need forty years in the desert" (175-176).

Rebuttal

Whether age influences the readiness to accept new ideas has been empirically criticised. In the case of acceptance of evolution in the years after Darwin's On the Origin of Species , age was a minor factor. [2] On a more specialized scale, it also was a weak factor in accepting cliometrics. [8] A study of when different geologists accepted plate tectonics found that older scientists actually adopted it sooner than younger scientists. [9] However, a more recent study on life science researchers found that following the deaths of preeminent researchers, publications by their collaborators rapidly declined while the activity of non-collaborators and the number of new researchers entering their field rose. [10]

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References

  1. ↑ Planck, Max K. (1950). Scientific Autobiography and Other Papers. New York: Philosophical library.
  2. 1 2 Hull DL, Tessner PD, Diamond AM (17 November 1978). "Planck's Principle". Science. 202 (4369): 717–23. Bibcode:1978Sci...202..717H. doi:10.1126/science.202.4369.717. PMID   17807228. S2CID   40962458.
  3. ↑ T. Kuhn. The Structure of Scientific Revolutions . University of Chicago Press, 1970. p. 151
  4. ↑ P. Feyerabend, in Criticism and the growth of knowledge, I. Lakatos and A. Musgrave, eds. Cambridge University Press, Cambridge 1970, p. 203
  5. ↑ Pierre Azoulay, Christian Fons-Rosen, Joshua S. Graff Zivin: Does Science Advance One Funeral at a Time? 2015, doi : 10.3386/w21788.
  6. ↑ John T. Blackmore (1978). "Is Planck's 'Principle' True?". British Journal for the Philosophy of Science. 29 (4): 347–349. doi:10.1093/bjps/29.4.347. JSTOR   687097.
  7. ↑ Eric Hoffer, "Writing and Thinking on the Waterfront: A Journal: June 1958 -- May 1959". Harper & Row, 1969. pages 175-176
  8. ↑ Arthur M. Diamond, Jr. (December 1980). "Age and the Acceptance of Cliometrics". The Journal of Economic History. 40 (4): 838–841. doi:10.1017/S002205070010021X. JSTOR   2120004. S2CID   145262032.
  9. ↑ Peter Messeri (1988). "Age Differences in the Reception of New Scientific Theories: The Case of Plate Tectonics Theory". Social Studies of Science. 18 (1): 91–112. doi:10.1177/030631288018001004. JSTOR   285378. S2CID   145775475.
  10. ↑ Pierre Azoulay, Christian Fons-Rosen, Joshua S. Graff Zivin (August 2019). "Does Science Advance One Funeral at a Time?". American Economic Review. 109 (8): 2889–2920. doi:10.1257/aer.20161574. PMC   6814193 . PMID   31656315.{{cite journal}}: CS1 maint: multiple names: authors list (link)
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