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Dec 8, 2022

Timeless Explanation: A New Kind of Causality, Julian Barbour

Posted by in categories: information science, quantum physics

There are serious indications from attempts to create a quantum theory of gravity that time must disappear completely from the description of the quantum universe. This has been known since 1967, when DeWitt discovered the Wheeler-DeWitt equation. I shall argue that this forces us to conceive explanation and causality in an entirely new way. The present can no longer be understood as the consequence of the past. Instead, I shall suggest that one may have to distinguish possible presents on the basis of their intrinsic structure, not on the basis of an assumed temporal ordering. If correct, this could have far-reaching implications. Hitherto, because the present has always been interpreted as the lawful consequence of the past, science has made no attempt to answer ‘Why’ questions, only ‘How’ questions. But if there is no past in the traditional sense, we must consider things differently. Thus, if we eliminate time, we may even be able to start asking “Why” questions.

Specification of a point and tangent vector in conformal superspace (CS) determines a slab of spacetime in CMC foliation and unique curve in CS.
Almost perfect implementation of Mach’s principle because local inertial frames, local proper distance and local proper time all emergent and determined by the universe’s shape and shape velocity.
The Mystery: Shape velocity, as opposed to shape direction, is last vestige of Newton’s absolute space and time. Responsible for expansion of the universe and perhaps perfect transformation theory in quantum theory of the universe.

Continue reading “Timeless Explanation: A New Kind of Causality, Julian Barbour” »

Dec 8, 2022

Discover the Oldest Human Remains — an Astounding 233,000 Years Old!

Posted by in category: futurism

An Astounding 233,000 Years Old!. We can learn a lot by unearthing old bones from our ancestors who roamed the…

Dec 8, 2022

Panpsychism: A Fantastic Theory About Consciousness

Posted by in category: neuroscience

Panpsychism is a disruptive theory put forward by some philosophers and neuroscientists. It proposes that human consciousness is only one of many forms of consciousness in…

Dec 8, 2022

Pulmonary hypertension: Causes, symptoms, risk factors, complications, diagnosis, treatment

Posted by in category: futurism

Women, are you having symptoms such as breathlessness or even chest pain? Then, beware! It can be due to pulmonary hypertension. Here’s all you need to know about the causes, symptoms, risk factors, complications, diagnosis and treatment of pulmonary hypertension.

Dec 8, 2022

A signaling pathway within brain cells that regulates how long and how deeply we sleep

Posted by in categories: genetics, neuroscience

A good night’s sleep can work wonders for both mind and body. But what is it that determines how much we need to sleep, and what can cause us to sleep more deeply?

In a new study, researchers from the University of Tsukuba have now provided some answers, revealing a signaling pathway within that regulates the length and depth of sleep.

“We examined in mice and how these affect their patterns of sleep,” says senior author of the study, Professor Hiromasa Funato. “We identified a mutation that led to the mice sleeping much longer and more deeply than usual.” The researchers found that this was caused by low levels of an enzyme called histone deacetylase 4 (HDAC4), which is known to suppress the expression of target genes.

Dec 8, 2022

A reconfigurable device based on 2D van der Waals heterostructures that works both as a transistor and memory

Posted by in categories: computing, engineering

One key objective of electronics engineering research is to develop computing devices that are both highly performing and energy-efficient, meaning that they can compute information quickly while consuming little power. One possible way to do this could be to combine units that perform logic operations and memory components into a single device.

So far, most computing devices have been made up of a processing unit and a physically separate component. The creation of a device that can efficiently perform both these functions, referred to as a logic-in-memory architecture, could help to significantly simplify devices and cut down their power consumption.

While a few of the logic-in-memory architectures proposed so far achieved promising results, most existing solutions come with practical limitations. For instance, some devices have been found to be unstable, unreliable or only applicable to specific use cases.

Dec 8, 2022

How VR Is Changing How We Look at Tumors | Mashable

Posted by in categories: biotech/medical, virtual reality

Tumors are three-dimensional phenomena, but so far we have been using 2D imagery to scan and study them. With the advancement of virtual reality in recent years, professor and director at Cancer Research UK Cambridge Institute Greg Hannon saw an opportunity to advance cancer research by incorporating 3D imaging and VR technology.

In 2017, his IMAXT team (Imaging and Molecular Annotation of Xenografts and Tumors) received a £20 million grant from Cancer Grand Challenges to develop VR software that could map tumours at an unprecedented level of detail. In the last few years, the project welcomed interdisciplinary and international collaborations between scientists and artists who created and tested the technology on breast cancers.

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Dec 8, 2022

Humanity: Firstborn Space Civilization

Posted by in categories: alien life, futurism

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As we continue to scan the heavens for signs of intelligent life, we must contemplate what it might mean if we are the first civilization to ever arise.

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Dec 8, 2022

Five states ban TikTok on state networks and devices over security concerns

Posted by in category: security

After a long-running probe into TikTok, individual states have started to take action against the social media company over security concerns. CNBC’s Kayla Tausche joins ‘Squawk Box’ with the details.

Dec 8, 2022

Tesla AI Day 2 will feature “hardware demos” and tons of technical details: Elon Musk

Posted by in categories: Elon Musk, robotics/AI, supercomputing, sustainability, transportation

Tesla CEO Elon Musk recently provided a teaser on what will be happening during the company’s AI Day 2 event this Friday. Considering Musk’s recent comments, it appears that AI Day 2 will be filled to the brim with exciting discussions and demos of next-generation tech.

This is not Tesla’s first AI Day. Last year, the electric vehicle maker held a similar event, outlining the company’s work in artificial intelligence. During the event, Tesla held an extensive discussion on its neural networks, Dojo supercomputer, and humanoid robot, the Tesla Bot (Optimus). Interestingly enough, mainstream coverage of the event later suggested that AI Day was underwhelming or disappointing.