One is reminded of Goethe’s memorable dictum “In der Beschränkung zeigt sich der Meister”: could it be that the prowess of science derives ultimately from its Beschränkung, its limitation? And does this not, finally, entail that the quest for a “theory of everything” is bound to fail? For my part, I am persuaded that such is indeed the case: in the final count, physics “works” precisely because it is not a “theory of everything.”
The reason why “no one understands quantum theory” resides thus in the measuring problem. And what renders this conundrum insoluble to the physicist is the fact that “strictly speaking, within quantum theory itself there is no decoherence.” Here we have it: the very Beschränkung, it turns out, which bestows upon the physicist his sovereign power to comprehend the physical universe, renders the measuring problem insoluble — i.e., to the physicist! — by restricting his vision to the realm of the physical as such. Wolfgang Smith, “Lost in Math: The Particle Physics Quandary” at Philo-Sophia Initiative
It’s worth considering: A theory of everything might not be possible. If reality truly is constructed of disparate natures, no theory from inside would explain it all.
See also: Sabine Hossenfelder: How you can help science out of a rut
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