Communion Of Dreams

Another look in the crystal ball …

From Chapter 14 of Communion of Dreams:

“No problems with either hand since your incident with the artifact?”

“No. They were sore last night when I first woke up, but I figured that was due to the shock or whatever it was.”

She nodded. “You know how the palmkey is installed and works, right?”

“Yeah, sure. It’s a thin film injected just under the skin, forms a fluid web across the palm that is programmed to function as a close-range transceiver. Simple enough.”

News item this morning:

A Flexible Circuit Has Been Injected Into Living Brains

What if the next gadget for sending messages to your friends wasn’t a watch strapped to your wrist or a phone stuffed in your pocket—but an electronic device embedded in your brain? Now, a new kind of flexible circuit has brought us one step closer to this science fiction future. Implanted via injection, a grid of wires only a few millimeters across can insinuate itself with living neurons and eavesdrop on their chatter, offering a way for electronics to interface with your brain activity.

“We’re trying to blur the distinction between electronic circuits and neural circuits,” says Charles Lieber, a nanotechnologist at Harvard University and co-author of a study describing the device this week in Nature Nanotechnology.

OK, not exactly the same thing … but pretty damned close. I’m going consider that another prediction come true.


Jim Downey

Location, location, location.

It really does seem to be a pretty universal law:

On the role of GRBs on life extinction in the Universe

As a copious source of gamma-rays, a nearby Galactic Gamma-Ray Burst (GRB) can be a threat to life. Using recent determinations of the rate of GRBs, their luminosity function and properties of their host galaxies, we estimate the probability that a life-threatening (lethal) GRB would take place. Amongst the different kinds of GRBs, long ones are most dangerous. There is a very good chance (but no certainty) that at least one lethal GRB took place during the past 5 Gyr close enough to Earth as to significantly damage life. There is a 50% chance that such a lethal GRB took place during the last 500 Myr causing one of the major mass extinction events. Assuming that a similar level of radiation would be lethal to life on other exoplanets hosting life, we explore the potential effects of GRBs to life elsewhere in the Galaxy and the Universe.


What that means is summed up in this article. Here’s the conclusion:

Astronomers have long known that the Earth occupies a unique position in the solar system that allows life to flourish. This idea of a habitable zone now allows them to focus search for exoplanets that might also have conditions that are right for life. Now they can take this further by excluding inhospitable regions of the galaxy, and searching only those stars and galaxies that exist in the universe’s habitable zones.


Of course, that’s just for life as we know it


Jim Downey


A useful swarm.

Another interesting item about developing the technology to create a useful swarm of small robots:

Harvard Researchers Create a Nature-Inspired Robotic Swarm

Some scientists believe that the way to solve the flocking enigma is to replicate it. Researchers at Harvard University’s Wyss Institute and School of Engineering and Applied Sciences (SEAS) recently developed a micro-scaled robotic technology that enables a controlled, flash mob–like assembly. In August, the team led by Harvard computer-science professors Radhika Nagpal and Fred Kavli demonstrated the ability of 1,000 robots to self-organize into user-selected shapes, such as a five-pointed starfish and the letter K.

* * *

“Increasingly, we’re going to see large numbers of robots working together, whether it’s hundreds of robots cooperating to achieve environmental cleanup or a quick disaster response, or millions of self-driving cars on our highways,” Nagpal said in the press release. “Understanding how to design ‘good’ systems at that scale will be critical.”

One provocative concept is the possibility of building and infrastructure construction that is carried out by thousands of self-organizing modules. Although many technical hurdles remain, this notion is especially intriguing in the case of hazardous and other challenging settings. In the near term, we will likely witness simple, one-story pavilions built from a collection of mobile robotic bricks to create emergency relief shelters following natural disasters.

Hmm … seems I’ve heard about that idea before someplace. Oh, yeah, from Communion of Dreams:

They were, in essence, enclosing the entire planet in a greenhouse of glass fabric and golden plasteel. It was going to take generations to finish, even using mass microbots and fabricating the construction materials from the Martian sands. Tens of thousands of the specially programmed microbots, a few centimeters long and a couple wide, would swarm an area, a carpet of shifting, building insects. As each cell was finished, it was sealed, joined to the adjacent cells, and then the microbots would move on.

But it is pretty cool to see the work being done to bring that about.


Jim Downey