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Nov 28, 2019

Here’s how to prove that you are a simulation and nothing is real

Posted by in category: futurism

How do you know you are real? A classic paper by philosopher Nick Bostrom argues you are likely a simulation.

Nov 27, 2019

How I cured myself of chronic illness and reversed ageing | Darryl D’Souza | TEDxPanaji

Posted by in categories: biotech/medical, food, life extension

NOTE FROM TED: This talk, which was filmed at a TEDx event, contains several assertions about diet that come from the speaker’s own understanding of nutrition. While some viewers may find advice provided in this talk to be helpful, please do not look to this talk for medical advice. TEDx events are independently organized by volunteers. The guidelines we give TEDx organizers are described in more detail here:

Can you cure your self from life threatening health problems? Can you reverse ageing? Darryl D’Souza, an expert in natural therapy and pioneer in integrated wellness and spirituality talks about how he reversed ageing by following simple laws of nature about food and nutrition. How the food that we eat today has become our poison and how we can reclaim our lives and good health. Darryl is the author of “Become Healthy or Extinct”, a book about reversing chronic illnesses with integrated natural therapy. The book has followers in over 150 countries. An engineer by profession, but drawn into the world of natural therapies after failed attempts by modern medicine to cure him of some serious illnesses at a young age. Darryl is a pioneer in Integrated Wellness & Spirituality and conducts life-transforming talks & workshops that expose the real causes of widespread sickness in society and he gives you breakthrough ideas on how to become part of the solution instead of being part of the problem. This talk was given at a TEDx event using the TED conference format but independently organized by a local community.

Nov 27, 2019

Study: Our universe may be part of a giant quantum computer

Posted by in categories: computing, cosmology, particle physics, quantum physics

A pair of physicists from Immanuel Kant Baltic Federal University (IKBFU) in Russia recently proposed an entirely new view of the cosmos. Their research takes the wacky idea that we’re living in a computer simulation and mashes it up with the mind-boggling “many worlds” theory to say that, essentially, our entire universe is part of an immeasurably large quantum system spanning “uncountable” multiverses.

When you think about quantum systems, like IBM and Google’s quantum computers, we usually imagine a device that’s designed to work with subatomic particles – qubits – to perform quantum calculations.

Nov 27, 2019

There Might Be Cracks in the Universe — But We Can’t See Them from Earth

Posted by in categories: cosmology, physics

Here might be cracks in space-time, but humanity’s telescopes can’t see them.

The cracks, if they exist, are old, remnants of a time shortly after the Big Bang. But a new paper shows they might be too faint to detect.

Nov 27, 2019

Former Go champion beaten by DeepMind retires after declaring AI invincible

Posted by in categories: entertainment, robotics/AI

When competing, it makes sense to compete on/with that worth competing (for). AI or not, it doesn’t matter.

The South Korean Go champion Lee Se-dol has retired from professional play, telling Yonhap news agency that his decision was motivated by the ascendancy of AI.

“With the debut of AI in Go games, I’ve realized that I’m not at the top even if I become the number one through frantic efforts,” Lee told Yonhap. “Even if I become the number one, there is an entity that cannot be defeated.”

Continue reading “Former Go champion beaten by DeepMind retires after declaring AI invincible” »

Nov 27, 2019

FDA Calls Psychedelic Psilocybin a ‘Breakthrough Therapy’ for Severe Depression

Posted by in categories: biotech/medical, neuroscience

The FDA is helping to speed up the process of researching and approving psilocybin, a hallucinogenic substance in magic mushrooms, to treat major depressive disorder (MDD).

For the second time in a year, the U.S. Food and Drug Administration (FDA) has designated psilocybin therapy — currently being tested in clinical trials — as “breakthrough therapy,” an action that is meant to accelerate the typically sluggish process of drug development and review. It is typically requested by a drug company and granted only when preliminary evidence suggests the drug may be an enormous improvement over already available therapy, according to the FDA.

Nov 27, 2019

Multiverse Theories Are Bad for Science

Posted by in categories: cosmology, science

New books by a physicist and science journalist mount aggressive but ultimately unpersuasive defenses of multiverses.

Nov 27, 2019

Strategy to help cells get rid of disease-related debris

Posted by in categories: biotech/medical, life extension

Tohoku University researchers have developed a strategy that could help cells get rid of disease-related debris. Further research could lead to treatments for neurodegenerative and metabolic diseases, Down syndrome, and maybe even aging-related diseases. The findings were published in the journal Molecular Cell.

Cells have a natural ability to routinely rid themselves of unnecessary or dysfunctional proteins and organelles. During this process of “,” debris are tagged with a compound called ubiquitin and then degraded within tiny cellular vacuoles. Autophagy is impaired in some cancers, and neurodegenerative and metabolic diseases, so scientists have been working to develop drugs that can regulate this process. However, little is known about the details of autophagy, such as how the cell knows which components to tag with ubiquitin.

In previous research, Hirokazu Arimoto, a chemical biologist at Tohoku University, and colleagues found that autophagy is initiated against invading streptococci bacteria when they are tagged with the nucleic acid guanine. The researchers wondered if guanine tagging could also initiate autophagy against other cellular components.

Nov 27, 2019

Space travel can make the gut leaky

Posted by in categories: biotech/medical, food, space travel

Bacteria, fungi, and viruses can enter our gut through the food we eat. Fortunately, the epithelial cells that line our intestines serve as a robust barrier to prevent these microorganisms from invading the rest of our bodies.

A research team led by a biomedical scientist at the University of California, Riverside, has found that simulated microgravity, such as that encountered in spaceflight, disrupts the functioning of the epithelial barrier even after removal from the .

“Our findings have implications for our understanding of the effects of space travel on intestinal function of astronauts in space, as well as their capability to withstand the effects of agents that compromise intestinal epithelial barrier function following their return to Earth,” said Declan McCole, a professor of biomedical sciences at the UC Riverside School of Medicine, who led the study published today in Scientific Reports.

Nov 27, 2019

Stem cell therapy helps broken hearts heal in unexpected way

Posted by in category: biotech/medical

Stem cell therapy helps hearts recover from a heart attack, although not for the biological reasons originally proposed two decades ago that today are the basis of ongoing clinical trials. This is the conclusion of a Nov. 27 study in Nature that shows an entirely different way that heart stem cells help the injured heart—not by replacing damaged or dead heart cells as initially proposed.

The study reports that injecting living or even dead heart stem cells into the injured hearts of mice triggers an acute inflammatory process, which in turn generates a wound healing-like response to enhance the mechanical properties of the injured area.

Mediated by macrophage cells of the immune system, the secondary healing process provided a modest benefit to heart function after , according to Jeffery Molkentin, Ph.D., principal investigator, director of Molecular Cardiovascular Microbiology a Cincinnati Children’s Hospital Medical Center and a professor of the Howard Hughes Medical Institute (HHMI).