Машина времени

Possible existence of time machines in a five-dimensional spacetime
Peter K. F. Kuhfittig
∗Department of Mathematics, Milwaukee School of Engineering
https://arxiv.org/pdf/2104.03790.pdf

Последний год увеличилось число исследований и публикаций по поводу фантастических идей. Вроде все серьезные люди на первый взгляд. Очень много попададалось о warp drive и о машинах времени на основе closed timelike curve (CTC). Стали писать, что там не все так безнадежно, как считалось раньше.

А эта статья пошла и еще дальше. Обосновывют возможность машины времени, у которой нет таких ограничений, как в CTC. Но зато нужно пятое измерение :) Материю пытаются представить как выпячивания из пространства более высокой размерности в наше.

Построение квантовой теориии заново

https://getpocket.com/explore/item/quantum-theory-rebuilt-from-simple-physical-principles
Там много разных подходов. Хочется особо отметить отказ от причинности:
'Causation imposes chronological ordering: An effect can’t precede its cause. But Hardy suspects that the axioms we need to build quantum theory will be ones that embrace a lack of definite causal structure — no unique time-ordering of events — which he says is what we should expect when quantum theory is combined with general relativity. “I’d like to see axioms that are as causally neutral as possible, because they’d be better candidates as axioms that come from quantum gravity,” he said. '

Уже много встречалось "наездов" на нее, но, кажется, здесь еще не отмечала.

Парадокс Гиббса с точки зрения квантовой механики

https://physicsworld.com/a/quantum-mechanics-gives-new-insights-into-the-gibbs-paradox/
Quantum mechanics gives new insights into the Gibbs paradox


"The classical Gibbs paradox

The classical Gibbs paradox takes the form of a thought experiment involving a box with a partition that separates two bodies of gas. When the partition is removed, the two gas bodies mix spontaneously. To an informed observer who can distinguish the two gas bodies, the system’s entropy increases. On the other hand, for an ignorant observer who cannot discern any differences between the two gas bodies, there is no visible mixing and the entropy remains unchanged.

This difference of opinion has a physical significance since work can be extracted through the mixing process when the entropy increases. That suggests that the system’s entropy should be an objective quantity – something that does not reconcile with the existence of the different outcomes for the two observers. Gibbs, however, noted that the extraction of work depends on the experimental apparatus of the observer. Hence, the informed observer can extract work, whereas the ignorant observer has to contend with their inability to do so. This makes each observer’s reality consistent with the entropy change they witness."

"Quantum effects

In the new work, the Oxford-Nottingham team considered how quantum effects such as superposition would affect the thought experiment. As in the classical case, the informed observer witnesses an entropy increase. For the ignorant observer, however, there is a marked difference after transitioning to the quantum realm. Although they are still unable to distinguish the two gases, they, too, can now witness an entropy increase. At the macroscopic limit, this entropy increase can even become as large as that which the informed observer perceives, providing the maximal discrepancy to the classical case."

Экспериментальная математика

Попалась статья:
https://en.wikipedia.org/wiki/Experimental_mathematics
Раньше уже попадались прогнозы, что во всех областях знания есть тенденция перехода к закономерностям и корреляциям вместо законов, а законы в компактной формулировке - всего лишь человеческое пристрастие, которое не так важно, а иногда и мешает компьютерному подходу к исследованиям.

Использование Хроник Акаши в военных целях

Hacking the Akashic Records: The Next Domain for Military Intelligence Operations
https://www.baylorisr.org/wp-content/uploads/2020/01/2020-WF-Hacking-the-Akashic-Records.pdf
"ABSTRACT

This paper outlines a hypothetical six dimension doctrine for military intelligence gathering in the Akashic domain. The Akashic records are describedby esotericists and mystics as a permanent record of all thoughts, feelings, and actions, stored in a kind of cosmic memory bank outside of space and time. Psychics, clairvoyants, and other intuitives purport to read the records, suggesting that development of an operational strategy for accessing such information may be possible. Command oversight, however, would present significant moral challenges, as “hacking” into this information would be a personally intrusive invasion of privacy with serious repercussions for the operators and state sponsors."

(Не знаю, что и думать. Проверять ссылки лень.)

Магнитные поля для модуляции нервной системы

Magnetic fields for modulating the nervous system
https://physicstoday.scitation.org/doi/10.1063/PT.3.4677

"Technologies for stimulating neurons are poised to become increasingly significant, yet the presently employed methods have serious drawbacks. ...

... Technology for more commonplace neuron stimulation, whether for experiments in model organisms or clinical therapy in humans, should be noninvasive or minimally invasive, wireless, able to access regions deep in the brain, spatially targeted, and selective to particular cell types.
That vision has attracted numerous engineers and scientists to independently focus on developing devices and methods for coupling noninvasive stimuli—including ultrasound, near-IR light, and time-varying electric fields—to the activity of neurons. Magnetic stimuli are especially appealing because of tissue’s weak magnetic properties and low conductivity, both of which ensure that magnetic fields can reach deep physiological targets undiminished.
Additionally, magnetic stimuli form a vast possibility space, as indicated in figure 1. Quasi-magnetostatic fields at the human scale can rotate, pulse, or oscillate with characteristic frequencies ranging from millihertz to megahertz. Spatially, the fields can be uniform, possess gradients, or exhibit points of vanishing magnitude. Any of those features or some combination of them facilitates strikingly different approaches for actuation. The practical considerations for generating magnetic fields with those properties and the limits of feasible scalability can also vary "

(см. также Манипуляции над мозгом и права человека https://yoginka.livejournal.com/460565.html)

Усложнение белков закономерно

A Surprisingly Simple Biochemistry Rule Drives the Evolution of Useless Complexity
https://scitechdaily.com/a-surprisingly-simple-biochemistry-rule-drives-the-evolution-of-useless-complexity/
"A new study at the University of Chicago has shown that elaborate protein structures accumulate over deep time even when they serve no purpose, because a universal biochemical property and the genetic code force natural selection to preserve them. The work was published on December 9, 2020, in Nature."
thinking

Манипуляции над мозгом и права человека

https://www.reuters.com/article/us-global-tech-rights/this-is-not-science-fiction-say-scientists-pushing-for-neuro-rights-idUSKBN28D3HK
"Scientific advances from deep brain stimulation to wearable scanners are making manipulation of the human mind increasingly possible, creating a need for laws and protections to regulate use of the new tools, top neurologists said on Thursday."

Оптогенетика

https://interestingengineering.com/mind-control-through-light-the-emerging-world-of-optogenetics
"Optogenetics could allow humans to use a remote control to control our brains. How? By using light."
Подобное уже попадалось и раньше.
Как страшно жить :) Особенно если вспомнить предыдущий пост (https://yoginka.livejournal.com/459840.html)