I think you are having a relatively common misunderstanding. Indeed, just having some analog process run itself is a boring example of "supremacy". https://www

I think you are having a relatively common misunderstanding. Indeed, just having some analog process run itself is a boring example of "supremacy". https://www.smbc-comics.com/comic/2013-07-19 https://www.smbc-comics.com/comic/2013-07-19 A "useful" computation is indeed the important final proof of supremacy. But intermediary results of "programmable" but useless computation is a pretty amazing achievement on its own, and it is not just "an analog process running itself". The distinction is described quite well here and it really matters to computational complexity theory https://scottaaronson.blog/?p=5460 https://scottaaronson.blog/?p=5460