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Continue to ChatThe question you raise, 'How can such a formulation lead to computations?' doesn't bother me in the least! Throughout my whole life as a mathematician, the possibility of making explicit, elegant computations has always come out by itself, as a byproduct of a thorough conceptual understanding of what was going on. Thus I never bothered about whether what would come out would be suitable for this or that, but just tried to understand - and it always turned out that understanding was all that mattered. - Alexander Grothendieck from https://whatsmyquote.com/quote/the-question-you-raise-how-can-such-a-formulation-lead-to-computations-doesn-t-bother-me-in-the-least