Back to index

7:2

(In »Intensities and phenomena in a relationalist universe«)

The decisive break with Kantian correlationism comes with relationalism in Niels Bohr’s physics and philosophy of science in the 1930s. Relationalist ontology is in fact not just interactive, like relativism, but definitely also intra-acting. According to relationalism, every phenomenon in the Universe is unique, since both its external and its internal coordinates are completely unique for every position in space–time. Symmetries exist only in mathematical models, never in physical reality. This means, among other things, that no scientific experiments can ever be repeated in exactly the same way twice. It is hardly surprising that in the 1930s old friends Niels Bohr and Albert Einstein engage in a correspondence that is often frustrating on both sides. Their letters attest to the dramatic scientific paradigm shift from Einsteinian relativism to Bohrian relationalism.