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I don’t understand this comment - in GR, these things aren’t operators (or even observables in the QM sense), so it isn’t clear to me what you even mean by “non-commuting” in this context. We just have a differentiable manifold with four locally linearly independent basis vectors, plus a connection and a metric; there’s nothing in this basic structure really that is meaningfully relatable via Fourier transforms. Even in quantum mechanics, specifically for your last example, the correct pairing would be time and energy. Time and position do commute, with the caveat that treating time as an operator comes with its own complications in QM. I think it’s also important to remember that GR is from the ground up designed to be a purely classical theory, and classicality precisely implies that there are no non-commuting observables.

There’s no “might” about it. Gemini summary below to the query “percent of US residents who avoid healthcare due to costs.” Supporting links available for each. One such link here: https://www.kff.org/health-costs/issue-brief/americans-challenges-with-health-care-costs/ —— A significant number of Americans avoid or delay healthcare due to cost, including: Uninsured adults In 2023, 46% of uninsured adults skipped medical treatment due to cost. Uninsured adults are also less likely to have a primary care provider. Working-age adults In 2023, 38% of working-age adults delayed or skipped healthcare due to cost. Adults with employer coverage In 2023, 29% of adults with employer coverage delayed or skipped healthcare due to cost. Adults with marketplace or individual-market plans In 2023, 37% of adults with marketplace or individual-market plans delayed or skipped healthcare due to cost. Adults with Medicaid In 2023, 39% of adults with Medicaid delayed or skipped healthcare due to cost. Adults with Medicare In 2023, 42% of adults with Medicare delayed or skipped healthcare due to cost

These two rulers are very similar: 1) Both came to power rather by accident; 2) Both showed themselves as relatively secular, not fanatical, maybe even pro-Western; 3) Both started their rule quite liberally; 4) In 2021, according to official data, Assad "got" 95% of votes in the first tour of the presidential election. Putin "got" 87% in the first tour in 2024. The next point is that any dictator benefits from the situation when the population have a little choice - either this dictator or a civil war. Please tell me if anyone knows how Assad did it in Syria. Currently I understand how Putin does this in Russia: 1) Now Chechnya is in fact an independent state, with a monarchical form of government, currently as an ally for the Russian Federation. But this "union" has to be paid for. Kadyrov has always shown himself to be anti-liberal; and if the next president starts democratic reforms )a thaw_, then Kadyrov will say that he and the Russian Federation are not on the same path, and this president will have to start a third Chechen war; 2) Until recently, another such figure was Evgeniy Prigozhin. He has always positioned himself as an extreme anti-liberal, and while he demanded to ban YouTube and turn Russia into the DPRK, Putin favored him and allowed him to grow; 3) One more such figure now is Viktor Zolotov, a chief of RosGuardia. As far as I understand it, he has his own army with armored vehicles and artillery.

Well some hormone levels are influenced by the brain. I’d look at that rather than protein production per se. Hormones can affect a lot of processes in the body.

The brain has nothing to do with it. If a brain were needed, no organism would ever develop from the egg - and there would be no plants. Just think about it for a moment.