An analogy used in a scientist's writing,
"For the more tried an existing theory is, the more sensitive it is, and the stronger resistance it puts up to every attempt to alter it. In this respect, it behaves like a highly complex, widely ramified organism, whose individual component parts are mutually interdependent and are so closely interlinked that a reaction to any stimulus at any one point is also manifested automatically at quite different and, seemingly, very remote places."
Plank, M. (1947/1949). The meaning and limits of exact science (F. Gaynor, Trans.). In Scientific Autobiography and other papers (pp. 80-120). Philosophical Library.
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