Albert Einstein was a charmingly blunt man. For instance, in 1952 he wrote a letter to his friend and fellow physicist Max Born where he admits that even if the astronomical data had gone against general relativity, he would still believe in the theory:
Even if there were absolutely no light deflection, no perihelion motion and no redshift, the gravitational equations would still be convincing because they avoid the inertial system … It is really quite strange that humans are usually deaf towards the strongest arguments, while they are constantly inclined to overestimate the accuracy of measurement.
In a few short sentences Einstein completely repudiates the empiricist spirit which has ostensibly guided scientific inquiry since Francis Bacon. He doesn’t care what the data says. If the experiment hadn’t been run, he would still believe the theory. Moreover, should the data have disconfirmed his theory, who cares? Data are often wrong.
This is not, to put it mildly, the official story of how science gets made. In the version most of us were taught, the process starts with somebody noticing patterns or regularities in experimental data. Scientists then hypothesize laws, principles, and causal mechanisms that abstract and explain the observed patterns. Finally, these hypotheses are put to the test by new experiments and discarded if they contradict their results. Simple, straightforward, and respectful of official pieties. The Schoolhouse Rock of science. Or as Einstein once described it:
The simplest idea about the development of science is that it follows the inductive method. Individual facts are chosen and grouped in such a way that the law, which connects them, becomes evident. By grouping these laws more general ones can be derived until a more or less homogeneous system would have been created for this set of individual facts.
See? It’s as easy as that. But then, Einstein finishes that thought with: “[t]he truly great advances in our understanding of nature originated in a manner almost diametrically opposed to induction”.
Was Einstein a science-denier? I’m obviously kidding, but this is still pretty jarring stuff to read. How did he get this way? Einstein’s Unification is the story of the evolution of Einstein’s philosophical views, disguised as a story about his discovery of general relativity and his quixotic attempts at a unified field theory. It’s a gripping tale about how Einstein tried to do science “correctly”, experienced years of frustration, almost had priority for his discoveries snatched away from him, then committed some Bad Rationalist Sins at which point things immediately began to work. This experience changed him profoundly, and maybe it should change us too.
John Psmith, “REVIEW: Einstein’s Unification, by Jeroen van Dongen”, Mr. and Mrs. Psmith’s Bookshelf, 2024-05-27.
January 28, 2025
QotD: Was Einstein a science-denier?
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