A big development in direct brain to machine interaction

[John Clark]

In a new paper researchers report on an ALS patient that had a small pad of experimental electrodes implanted into the motor cortex of a woman's brain that enabled her to communicate at 62 words per minute, normal speech is about 160.

A high-performance speech neuroprosthesis

This is especially impressive because previous implants had only allowed people to do simple things, like move a dot on a screen up or down and left or right, but speech involves the most complex and precise movements the human body is capable of. The patient did not have to give exact instructions on how to move her tongue or her lips, she just imagined that she was speaking normally and the machine could figure out what she was trying to say and only needed to monitor a few neurons to do it. It's a pity Stephen Hawking didn't have access to this technology.

John K Clark    See what's on my new list at  Extropolis

6cx

[spudb...@aol.com]

Let's see how well Musk's chip does. I haven't been following it closely as I might have. What I'd fund for is neural chips as a direct link to something on the long road to Batman and Ironman power suits. Sorry, flying I'd leave for AI. For the suits it'd be mobility, feeling, senses. 

I'd be funding for this now, but serfs have no say so very interesting anyways, JC.

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[spudb...@aol.com]

These are all identified as arriving  from star systems within 100 LY. 

Here is the summary from Nature Astronomy-

A deep-learning search for technosignatures from 820 nearby stars | Nature Astronomy

Here is the public feeder article for us serfs. 

An AI has found eight ‘signals of interest’ in the search for aliens, scientists say (msn.com)

Father, the Sleeper has awakened. 

Should we be taking Harvard astronomer Avi Loeb, more seriously?

[Brent Meeker]

https://arxiv.org/pdf/2301.12670.pdf

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[spudb...@aol.com]

Very nice, thanks.

Now, here is an apparently, recent paper on the possibility of getting there faster, or running away in terror as they arrive here out of nowhere. It's all   Alcubere's, all the way down, Dr. Sagan. 

Alcubierre warp drive in spherical coordinates with some matter configurations | SpringerLink

It is well known that, locally, particles cannot exceed the speed of light. However in general relativity particles can travel globally at superluminal velocities [1,2,3,4]. This idea was explored by Alcubierre [5] to propose a way to propel material at velocities higher than the speed of light. The mechanism proposed by Alcubierre creates a distortion of space-time, called a warp bubble, resulting in spacetime contracting in front of the bubble and expanding behind of the bubble as the bubble moves through a geodesic. The line element proposed by Alcubierre was

ds2=−dt2+(dx−f(rs)vsdt)2+dy2+dz2,ds2=−dt2+(dx−f(rs)vsdt)2+dy2+dz2,

(1)

with rs=(x−xs)2+y2+z2−−−−−−−−−−−−−−−√rs=(x−xs)2+y2+z2 and vs=dxsdtvs=dxsdt. This corresponds to an ADM-like decomposition of the line element [6,7,8]. Studying this metric, Alcubierre concluded that the proposed warp implied the violation of energy conditions, since it seemed that a negative energy density would be necessary for the creation of the bubble.

Negative energy, eh? If these Chinese dudes are correct, negative energy is even time-measurable. 

https://arxiv.org/pdf/2301.06740.pdf

I am suspecting that to get anywhere with all this, we will need a large budget, yep!

  

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[spudb...@aol.com]

Beyond tweaking Professor Alcubierres' equations for jumps to other stars. Here is a paper for using antimatter to propel a fission craft to Proxima. Not bad for slower than light.

Full article: Antimatter-Based Propulsion for Exoplanet Exploration (tandfonline.com)

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Sent: Tue, Jan 31, 2023 2:50 am
Subject: Re: An AI system has identified 8 signals of interest from closer star systems

Very nice, thanks.

Now, here is an apparently, recent paper on the possibility of getting there faster, or running away in terror as they arrive here out of nowhere. It's all   Alcubere's, all the way down, Dr. Sagan. 

Alcubierre warp drive in spherical coordinates with some matter configurations | SpringerLink

It is well known that, locally, particles cannot exceed the speed of light. However in general relativity particles can travel globally at superluminal velocities [1,2,3,4]. This idea was explored by Alcubierre [5] to propose a way to propel material at velocities higher than the speed of light. The mechanism proposed by Alcubierre creates a distortion of space-time, called a warp bubble, resulting in spacetime contracting in front of the bubble and expanding behind of the bubble as the bubble moves through a geodesic. The line element proposed by Alcubierre was

ds2=−dt2+(dx−f(rs)vsdt)2+dy2+dz2, d s 2 = − d t 2 + ( d x − f ( r s ) v s d t ) 2 + d y 2 + d z 2 ,

(1)

with rs=(x−xs)2+y2+z2−−−−−−−−−−−−−−−√ r s = ( x − x s ) 2 + y 2 + z 2  and vs=dxsdt v s = d x s d t . This corresponds to an ADM-like decomposition of the line element [6,7,8]. Studying this metric, Alcubierre concluded that the proposed warp implied the violation of energy conditions, since it seemed that a negative energy density would be necessary for the creation of the bubble.

To view this discussion on the web visit https://groups.google.com/d/msgid/everything-list/402101730.1047832.1675151409044%40mail.yahoo.com.

[spudb...@aol.com]

It's in Popular Mechanics, damnit!

An Analog—Yes, Analog—Computer May Crack the Greatest Unsolved Mysteries in Physics (msn.com)

The actual Nature article-

Quantum simulation of an exotic quantum critical point in a two-site charge Kondo circuit | Nature Physics

"According to Goldhaber-Gordon, these analog devices create a “hardware analogy” to solve problems in quantum physics. To test the simulator, researchers used a simple circuit coupled together with two quantum components. Tuning electrical voltages, scientists created a state of matter called “Z3 parafermions,” which is when electrons have only one-third of their usual charge—the first time such a state was created on an electronic device in a lab."

Parafermions on stun.