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#432456 This Planned Solar Farm in Saudi Arabia ...

Posted on April 3, 2018 by Android

Right now it only exists on paper, in the form of a memorandum of understanding. But if constructed, the newly-announced solar photovoltaic project in Saudi Arabia would break an astonishing array of records. It’s larger than any solar project currently planned by a factor of 100. When completed, nominally in 2030, it would have a capacity of an astonishing 200 gigawatts (GW). The project is backed by Softbank Group and Saudi Arabia’s new crown prince, Mohammed Bin Salman, and was announced in New York on March 27.

The Tengger Desert Solar Park in China, affectionately known as the “Great Wall of Solar,” is the world’s largest operating solar farm, with a capacity of 1.5 GW. Larger farms are under construction, including the Westlands Solar Park, which plans to finish with 2.7 GW of capacity. But even those that are only in the planning phases are dwarfed by the Saudi project; two early-stage solar parks will have capacity of 7.2 GW, and the plan involves them generating electricity as early as next year.

It makes more sense to compare to slightly larger projects, like nations, or even planets. Saudi Arabia’s current electricity generation capacity is 77 GW. This project would almost triple it. The current total solar photovoltaic generation capacity installed worldwide is 303 GW. In other words, this single solar farm would account for a similar installed capacity as the entire world’s capacity in 2015, and over a thousand times more than we had in 2000.

That’s exponential growth for you, folks.

Of course, practically doubling the world’s solar capacity doesn’t come cheap; the nominal estimate for the budget is around $200 billion (compared to $20 billion for around half a gigawatt of fusion, though, it may not seem so bad.) But the project would help solve a number of pressing problems for Saudi Arabia.

For a start, solar power works well in the desert. The irradiance is high, you have plenty of empty space, and peak demand is driven by air conditioning in the cities and so corresponds with peak supply. Even if oil companies might seem blasé about the global supply of oil running out, individual countries are aware that their own reserves won’t last forever, and they don’t want to miss the energy transition. The country’s Vision 2030 project aims to diversify its heavily oil-dependent economy by that year. If they can construct solar farms on this scale, alongside the $80 billion the government plans to spend on a fleet of nuclear reactors, it seems logical to export that power to other countries in the region, especially given the amount of energy storage that would be required otherwise.

We’ve already discussed a large-scale project to build solar panels in the desert then export the electricity: the DESERTEC initiative in the Sahara. Although DESERTEC planned a range of different demonstration plants on scales of around 500 MW, its ultimate ambition was to “provide 20 percent of Europe’s electricity by 2050.” It seems that this project is similar in scale to what they were planning. Weaning ourselves off fossil fuels is going to be incredibly difficult. Only large-scale nuclear, wind, or solar can really supply the world’s energy needs if consumption is anything like what it is today; in all likelihood, we’ll need a combination of all three.

To make a sizeable contribution to that effort, the renewable projects have to be truly epic in scale. The planned 2 GW solar park at Bulli Creek in Australia would cover 5 square kilometers, so it’s not unreasonable to suggest that, across many farms, this project could cover around 500 square kilometers—around the size of Chicago.

It will come as no surprise that Softbank is involved in this project. The founder, Masayoshi Son, is well-known for large-scale “visionary” investments. This is suggested by the name of his $100 billion VC fund, the Softbank Vision Fund, and the focus of its investments. It has invested millions of dollars in tech companies like Uber, IoT, NVIDIA and ARM, and startups across fields like VR, agritech, and AI.

Of course, Softbank is also the company that bought infamous robot-makers Boston Dynamics from Google when their not-at-all-sinister “Project Replicant” was sidelined. Softbank is famous in Japan in part due to their mascot, Pepper, which is probably the most widespread humanoid robot on the planet. Suffice it to say that Softbank is keen to be a part of any technological development, and they’re not afraid of projects that are truly vast in scope.

Since the Fukushima disaster in 2011 led Japan to turn away from nuclear power, Son has also been focused on green electricity, floating the idea of an Asia Super Grid. Similar to DESERTEC, it aims to get around the main issues with renewable energy (the land use and the intermittency of supply) with a vast super-grid that would connect Mongolia, India, Japan, China, Russia, and South Korea with high-voltage DC power cables. “Since this is such a grandiose project, many people told me it is crazy,” Son said. “They said it is impossible both economically and politically.” The first stage of the project, a demonstration wind farm of 50 megawatts in Mongolia, began operating in October of last year.

Given that Saudi Arabia put up $45 billion of the Vision Fund, it’s also not surprising to see the location of the project; Softbank reportedly had plans to invest $25 billion of the Vision Fund in Saudi Arabia, and $1 billion will be spent on the first solar farms there. Prince Mohammed Bin Salman, 32, who recently consolidated power, is looking to be seen on the global stage as a modernizer. He was effusive about the project. “It’s a huge step in human history,” he said. “It’s bold, risky, and we hope we succeed doing that.”

It is the risk that will keep renewable energy enthusiasts concerned.

Every visionary plan contains the potential for immense disappointment. As yet, the Asian Super Grid and the Saudi power plan are more or less at the conceptual stage. The fact that a memorandum of understanding exists between the Saudi government and Softbank is no guarantee that it will ever be built. Some analysts in the industry are a little skeptical.

“It’s an unprecedented construction effort; it’s an unprecedented financing effort,” said Benjamin Attia, a global solar analyst for Green Tech Media Research. “But there are so many questions, so few details, and a lot of headwinds, like grid instability, the availability of commercial debt, construction, and logistics challenges.”

We have already seen with the DESERTEC initiative that these vast-scale renewable energy projects can fail, despite immense enthusiasm. They are not easy to accomplish. But in a world without fossil fuels, they will be required. This project could be a flagship example for how to run a country on renewable energy—or another example of grand designs and good intentions. We’ll have to wait to find out which.

Image Credit: Love Silhouette / Shutterstock.com Continue reading →

Posted in Human Robots

#432036 The Power to Upgrade Our Own Biology Is ...

Posted on February 15, 2018 by Android

Upgrading our biology may sound like science fiction, but attempts to improve humanity actually date back thousands of years. Every day, we enhance ourselves through seemingly mundane activities such as exercising, meditating, or consuming performance-enhancing drugs, such as caffeine or adderall. However, the tools with which we upgrade our biology are improving at an accelerating rate and becoming increasingly invasive.

In recent decades, we have developed a wide array of powerful methods, such as genetic engineering and brain-machine interfaces, that are redefining our humanity. In the short run, such enhancement technologies have medical applications and may be used to treat many diseases and disabilities. Additionally, in the coming decades, they could allow us to boost our physical abilities or even digitize human consciousness.

What’s New?
Many futurists argue that our devices, such as our smartphones, are already an extension of our cortex and in many ways an abstract form of enhancement. According to philosophers Andy Clark and David Chalmers’ theory of extended mind, we use technology to expand the boundaries of the human mind beyond our skulls.

One can argue that having access to a smartphone enhances one’s cognitive capacities and abilities and is an indirect form of enhancement of its own. It can be considered an abstract form of brain-machine interface. Beyond that, wearable devices and computers are already accessible in the market, and people like athletes use them to boost their progress.

However, these interfaces are becoming less abstract.

Not long ago, Elon Musk announced a new company, Neuralink, with the goal of merging the human mind with AI. The past few years have seen remarkable developments in both the hardware and software of brain-machine interfaces. Experts are designing more intricate electrodes while programming better algorithms to interpret neural signals. Scientists have already succeeded in enabling paralyzed patients to type with their minds, and are even allowing brains to communicate with one another purely through brainwaves.

Ethical Challenges of Enhancement
There are many social and ethical implications of such advancements.

One of the most fundamental issues with cognitive and physical enhancement techniques is that they contradict the very definition of merit and success that society has relied on for millennia. Many forms of performance-enhancing drugs have been considered “cheating” for the longest time.

But perhaps we ought to revisit some of our fundamental assumptions as a society.

For example, we like to credit hard work and talent in a fair manner, where “fair” generally implies that an individual has acted in a way that has served him to merit his rewards. If you are talented and successful, it is considered to be because you chose to work hard and take advantage of the opportunities available to you. But by these standards, how much of our accomplishments can we truly be credited for?

For instance, the genetic lottery can have an enormous impact on an individual’s predisposition and personality, which can in turn affect factors such as motivation, reasoning skills, and other mental abilities. Many people are born with a natural ability or a physique that gives them an advantage in a particular area or predisposes them to learn faster. But is it justified to reward someone for excellence if their genes had a pivotal role in their path to success?

Beyond that, there are already many ways in which we take “shortcuts” to better mental performance. Seemingly mundane activities like drinking coffee, meditating, exercising, or sleeping well can boost one’s performance in any given area and are tolerated by society. Even the use of language can have positive physical and psychological effects on the human brain, which can be liberating to the individual and immensely beneficial to society at large. And let’s not forget the fact that some of us are born into more access to developing literacy than others.

Given all these reasons, one could argue that cognitive abilities and talents are currently derived more from uncontrollable factors and luck than we like to admit. If anything, technologies like brain-machine interfaces can enhance individual autonomy and allow one a choice of how capable they become.

As Karim Jebari points out (pdf), if a certain characteristic or trait is required to perform a particular role and an individual lacks this trait, would it be wrong to implement the trait through brain-machine interfaces or genetic engineering? How is this different from any conventional form of learning or acquiring a skill? If anything, this would be removing limitations on individuals that result from factors outside their control, such as biological predisposition (or even traits induced from traumatic experiences) to act or perform in a certain way.

Another major ethical concern is equality. As with any other emerging technology, there are valid concerns that cognitive enhancement tech will benefit only the wealthy, thus exacerbating current inequalities. This is where public policy and regulations can play a pivotal role in the impact of technology on society.

Enhancement technologies can either contribute to inequality or allow us to solve it. Educating and empowering the under-privileged can happen at a much more rapid rate, helping the overall rate of human progress accelerate. The “normal range” for human capacity and intelligence, however it is defined, could shift dramatically towards more positive trends.

Many have also raised concerns over the negative applications of government-led biological enhancement, including eugenics-like movements and super-soldiers. Naturally, there are also issues of safety, security, and well-being, especially within the early stages of experimentation with enhancement techniques.

Brain-machine interfaces, for instance, could have implications on autonomy. The interface involves using information extracted from the brain to stimulate or modify systems in order to accomplish a goal. This part of the process can be enhanced by implementing an artificial intelligence system onto the interface—one that exposes the possibility of a third party potentially manipulating individual’s personalities, emotions, and desires by manipulating the interface.

A Tool For Transcendence
It’s important to discuss these risks, not so that we begin to fear and avoid such technologies, but so that we continue to advance in a way that minimizes harm and allows us to optimize the benefits.

Stephen Hawking notes that “with genetic engineering, we will be able to increase the complexity of our DNA, and improve the human race.” Indeed, the potential advantages of modifying biology are revolutionary. Doctors would gain access to a powerful tool to tackle disease, allowing us to live longer and healthier lives. We might be able to extend our lifespan and tackle aging, perhaps a critical step to becoming a space-faring species. We may begin to modify the brain’s building blocks to become more intelligent and capable of solving grand challenges.

In their book Evolving Ourselves, Juan Enriquez and Steve Gullans describe a world where evolution is no longer driven by natural processes. Instead, it is driven by human choices, through what they call unnatural selection and non-random mutation. Human enhancement is bringing us closer to such a world—it could allow us to take control of our evolution and truly shape the future of our species.

Image Credit: GrAl/ Shutterstock.com Continue reading →

Posted in Human Robots

#432021 Unleashing Some of the Most Ambitious ...

Posted on February 13, 2018 by Android

At Singularity University, we are unleashing a generation of women who are smashing through barriers and starting some of the most ambitious technology companies on the planet.

Singularity University was founded in 2008 to empower leaders to use exponential technologies to solve our world’s biggest challenges. Our flagship program, the Global Solutions Program, has historically brought 80 entrepreneurs from around the world to Silicon Valley for 10 weeks to learn about exponential technologies and create moonshot startups that improve the lives of a billion people within a decade.

After nearly 10 years of running this program, we can say that about 70 percent of our successful startups have been founded or co-founded by female entrepreneurs (see below for inspiring examples of their work). This is in sharp contrast to the typical 10–20 percent of venture-backed tech companies that have a female founder, as reported by TechCrunch.

How are we so dramatically changing the game? While 100 percent of the credit goes to these courageous women, as both an alumna of the Global Solutions Program and our current vice chair of Global Grand Challenges, I want to share my reflections on what has worked.

At the most basic level, it is essential to deeply believe in the inherent worth, intellectual genius, and profound entrepreneurial caliber of women. While this may seem obvious, this is not the way our world currently thinks—we live in a world that sees women’s ideas, contributions, work, and existence as inherently less valuable than men’s.

For example, a 2017 Harvard Business Review article noted that even when women engage in the same behaviors and work as men, their work is considered less valuable simply because a woman did the job. An additional 2017 Harvard Business Review article showed that venture capitalists are significantly less likely to invest in female entrepreneurs and are more likely to ask men questions about the potential success of their companies while grilling women about the potential downfalls of their companies.

This doubt and lack of recognition of the genius and caliber of women is also why women are still paid less than men for completing identical work. Further, it’s why women’s work often gets buried in “number two” support roles of men in leadership roles and why women are expected to take on second shifts at home managing tedious household chores in addition to their careers. I would also argue these views as well as the rampant sexual harassment, assault, and violence against women that exists today stems from stubborn, historical, patriarchal views of women as living for the benefit of men, rather than for their own sovereignty and inherent value.

As with any other business, Singularity University has not been immune to these biases but is resolutely focused on helping women achieve intellectual genius and global entrepreneurial caliber by harnessing powerful exponential technologies.

We create an environment where women can physically and intellectually thrive free of harassment to reach their full potential, and we are building a broader ecosystem of alumni and partners around the world who not only support our female entrepreneurs throughout their entrepreneurial journeys, but who are also sparking and leading systemic change in their own countries and communities.

Respecting the Intellectual Genius and Entrepreneurial Caliber of Women
The entrepreneurial legends of our time—Steve Jobs, Elon Musk, Mark Zuckerberg, Bill Gates, Jeff Bezos, Larry Page, Sergey Brin—are men who have all built their empires using exponential technologies. Exponential technologies helped these men succeed faster and with greater impact due to Moore’s Law and the Law of Accelerating Returns which states that any digital technology (such as computing, software, artificial intelligence, robotics, quantum computing, biotechnology, nanotechnology, etc.) will become more sophisticated while dramatically falling in price, enabling rapid scaling.

Knowing this, an entrepreneur can plot her way to an ambitious global solution over time, releasing new applications just as the technology and market are ready. Furthermore, these rapidly advancing technologies often converge to create new tools and opportunities for innovators to come up with novel solutions to challenges that were previously impossible to solve in the past.

For various reasons, women have not pursued exponential technologies as aggressively as men (or were prevented or discouraged from doing so).

While more women are founding firms at a higher rate than ever in wealthy countries like the United States, the majority are small businesses in linear industries that have been around for hundreds of years, such as social assistance, health, education, administrative, or consulting services. In lower-income countries, international aid agencies and nonprofits often encourage women to pursue careers in traditional handicrafts, micro-enterprise, and micro-finance. While these jobs have historically helped women escape poverty and gain financial independence, they have done little to help women realize the enormous power, influence, wealth, and ability to transform the world for the better that comes from building companies, nonprofits, and solutions grounded in exponential technologies.

We need women to be working with exponential technologies today in order to be powerful leaders in the future.

Participants who enroll in our Global Solutions Program spend the first few weeks of the program learning about exponential technologies from the world’s experts and the final weeks launching new companies or nonprofits in their area of interest. We require that women (as well as men) utilize exponential technologies as a condition of the program.

In this sense, at Singularity University women start their endeavors with all of us believing and behaving in a way that assumes they can achieve global impact at the level of our world’s most legendary entrepreneurs.

Creating an Environment Where Woman Can Thrive
While challenging women to embrace exponential technologies is essential, it is also important to create an environment where women can thrive. In particular, this means ensuring women feel at home on our campus by ensuring gender diversity, aggressively addressing sexual harassment, and flipping the traditional culture from one that penalizes women, to one that values and supports them.

While women were initially only a small minority of our Global Solutions Program, in 2014, we achieved around 50% female attendance—a statistic that has since held over the years.

This is not due to a quota—every year we turn away extremely qualified women from our program (and are working on reformulating the program to allow more people to participate in the future.) While part of our recruiting success is due to the efforts of our marketing team, we also benefited from the efforts of some of our early female founders, staff, faculty, and alumnae including Susan Fonseca, Emeline Paat-Dahlstrom, Kathryn Myronuk, Lajuanda Asemota, Chiara Giovenzana, and Barbara Silva Tronseca.

As early champions of Singularity University these women not only launched diversity initiatives and personally reached out to women, but were crucial role models holding leadership roles in our community. In addition, Fonseca and Silva also both created multiple organizations and initiatives outside of (or in conjunction with) the university that produced additional pipelines of female candidates. In particular, Fonseca founded Women@TheFrontier as well as other organizations focusing on women, technology and innovation, and Silva founded BestInnovation (a woman’s accelerator in Latin America), as well as led Singularity University’s Chilean Chapter and founded the first SingularityU Summit in Latin America.

These women’s efforts in globally scaling Singularity University have been critical in ensuring woman around the world now see Singularity University as a place where they can lead and shape the future.

Also, thanks to Google (Alphabet) and many of our alumni and partners, we were able to provide full scholarships to any woman (or man) to attend our program regardless of their economic status. Google committed significant funding for full scholarships while our partners around the world also hosted numerous Global Impact Competitions, where entrepreneurs pitched their solutions to their local communities with the winners earning a full scholarship funded by our partners to attend the Global Solution Program as their prize.

Google and our partners’ support helped individuals attend our program and created a wider buzz around exponential technology and social change around the world in local communities. It led to the founding of 110 SU chapters in 55 countries.

Another vital aspect of our work in supporting women has been trying to create a harassment-free environment. Throughout the Silicon Valley, more than 60% of women convey that while they are trying to build their companies or get their work done, they are also dealing with physical and sexual harassment while being demeaned and excluded in other ways in the workplace. We have taken actions to educate and train our staff on how to deal with situations should they occur. All staff receives training on harassment when they join Singularity University, and all Global Solutions Program participants attend mandatory trainings on sexual harassment when they first arrive on campus. We also have male and female wellness counselors available that can offer support to both individuals and teams of entrepreneurs throughout the entire program.

While at a minimum our campus must be physically safe for women, we also strive to create a culture that values women and supports them in the additional challenges and expectations they face. For example, one of our 2016 female participants, Van Duesterberg, was pregnant during the program and said that instead of having people doubt her commitment to her startup or make her prove she could handle having a child and running a start-up at the same time, people went out of their way to help her.

“I was the epitome of a person not supposed to be doing a startup,” she said. “I was pregnant and would need to take care of my child. But Singularity University was supportive and encouraging. They made me feel super-included and that it was possible to do both. I continue to come back to campus even though the program is over because the network welcomes me and supports me rather than shuts me out because of my physical limitations. Rather than making me feel I had to prove myself, everyone just understood me and supported me, whether it was bringing me healthy food or recommending funders.”

Another strength that we have in supporting women is that after the Global Solutions Program, entrepreneurs have access to a much larger ecosystem.

Many entrepreneurs partake in SU Ventures, which can provide further support to startups as they develop, and we now have a larger community of over 200,000 people in almost every country. These members have often attended other Singularity University programs, events and are committed to our vision of the future. These women and men consist of business executives, Fortune 500 companies, investors, nonprofit and government leaders, technologists, members of the media, and other movers and shakers in the world. They have made introductions for our founders, collaborated with them on business ventures, invested in them and showcased their work at high profile events around the world.

Building for the Future
While our Global Solutions Program is making great strides in supporting female entrepreneurs, there is always more work to do. We are now focused on achieving the same degree of female participation across all of our programs and actively working to recruit and feature more female faculty and speakers on stage. As our community grows and scales around the world, we are also intent at how to best uphold our values and policies around sexual harassment across diverse locations and cultures. And like all businesses everywhere, we are focused on recruiting more women to serve at senior leadership levels within SU. As we make our way forward, we hope that you will join us in boldly leading this change and recognizing the genius and power of female entrepreneurs.

Meet Some of Our Female Moonshots
While we have many remarkable female entrepreneurs in the Singularity University community, the list below features a few of the women who have founded or co-founded companies at the Global Solutions Program that have launched new industries and are on their way to changing the way our world works for millions if not billions of people.

Jessica Scorpio co-founded Getaround in 2009. Getaround was one of the first car-sharing service platforms allowing anyone to rent out their car using a smartphone app. GetAround was a revolutionary idea in 2009, not only because smartphones and apps were still in their infancy, but because it was unthinkable that a technology startup could disrupt the major entrenched car, transport, and logistics companies. Scorpio’s early insights and pioneering entrepreneurial work brought to life new ways that humans relate to car sharing and the future self-driving car industry. Scorpio and Getaround have won numerous awards, and Getaround now serves over 200,000 members.

Paola Santana co-founded Matternet in 2011, which pioneered the commercial drone transport industry. In 2011, only military, hobbyists or the film industry used drones. Matternet demonstrated that drones could be used for commercial transport in short point-to-point deliveries for high-value goods laying the groundwork for drone transport around the world as well as some of the early thinking behind the future flying car industry. Santana was also instrumental in shaping regulations for the use of commercial drones around the world, making the industry possible.

Sara Naseri co-founded Qurasense in 2014, a life sciences start-up that analyzes women’s health through menstrual blood allowing women to track their health every month. Naseri is shifting our understanding of women’s menstrual blood as a waste product and something “not to be talked about,” to a rich, non-invasive, abundant source of information about women’s health.

Abi Ramanan co-founded ImpactVision in 2015, a software company that rapidly analyzes the quality and characteristics of food through hyperspectral images. Her long-term vision is to digitize food supply chains to reduce waste and fraud, given that one-third of all food is currently wasted before it reaches our plates. Ramanan is also helping the world understand that hyperspectral technology can be used in many industries to help us “see the unseen” and augment our ability to sense and understand what is happening around us in a much more sophisticated way.

Anita Schjøll Brede and Maria Ritola co-founded Iris AI in 2015, an artificial intelligence company that is building an AI research assistant that drastically improves the efficiency of R&D research and breaks down silos between different industries. Their long-term vision is for Iris AI to become smart enough that she will become a scientist herself. Fast Company named Iris AI one of the 10 most innovative artificial intelligence companies for 2017.

Hla Hla Win co-founded 360ed in 2016, a startup that conducts teacher training and student education through virtual reality and augmented reality in Myanmar. They have already connected teachers from 128 private schools in Myanmar with schools teaching 21st-century skills in Silicon Valley and around the world. Their moonshot is to build a platform where any teacher in the world can share best practices in teachers’ training. As they succeed, millions of children in some of the poorest parts of the world will have access to a 21st-century education.

Min FitzGerald and Van Duesterberg cofounded Nutrigene in 2017, a startup that ships freshly formulated, tailor-made supplement elixirs directly to consumers. Their long-term vision is to help people optimize their health using actionable data insights, so people can take a guided, tailored approaching to thriving into longevity.

Anna Skaya co-founded Basepaws in 2016, which created the first genetic test for cats and is building a community of citizen scientist pet owners. They are creating personalized pet products such as supplements, therapeutics, treats, and toys while also developing a database of genetic data for future research that will help both humans and pets over the long term.

Olivia Ramos co-founded Deep Blocks in 2016, a startup using artificial intelligence to integrate and streamline the processes of architecture, pre-construction, and real estate. As digital technologies, artificial intelligence, and robotics advance, it no longer makes sense for these industries to exist separately. Ramos recognized the tremendous value and efficiency that it is now possible to unlock with exponential technologies and creating an integrated industry in the future.

Please also visit our website to learn more about other female entrepreneurs, staff and faculty who are pioneering the future through exponential technologies. Continue reading →

Posted in Human Robots

#431999 Brain-Like Chips Now Beat the Human ...

Posted on February 8, 2018 by Android

Move over, deep learning. Neuromorphic computing—the next big thing in artificial intelligence—is on fire.

Just last week, two studies individually unveiled computer chips modeled after information processing in the human brain.

The first, published in Nature Materials, found a perfect solution to deal with unpredictability at synapses—the gap between two neurons that transmit and store information. The second, published in Science Advances, further amped up the system’s computational power, filling synapses with nanoclusters of supermagnetic material to bolster information encoding.

The result? Brain-like hardware systems that compute faster—and more efficiently—than the human brain.

“Ultimately we want a chip as big as a fingernail to replace one big supercomputer,” said Dr. Jeehwan Kim, who led the first study at MIT in Cambridge, Massachusetts.

Experts are hopeful.

“The field’s full of hype, and it’s nice to see quality work presented in an objective way,” said Dr. Carver Mead, an engineer at the California Institute of Technology in Pasadena not involved in the work.

Software to Hardware
The human brain is the ultimate computational wizard. With roughly 100 billion neurons densely packed into the size of a small football, the brain can deftly handle complex computation at lightning speed using very little energy.

AI experts have taken note. The past few years saw brain-inspired algorithms that can identify faces, falsify voices, and play a variety of games at—and often above—human capability.

But software is only part of the equation. Our current computers, with their transistors and binary digital systems, aren’t equipped to run these powerful algorithms.

That’s where neuromorphic computing comes in. The idea is simple: fabricate a computer chip that mimics the brain at the hardware level. Here, data is both processed and stored within the chip in an analog manner. Each artificial synapse can accumulate and integrate small bits of information from multiple sources and fire only when it reaches a threshold—much like its biological counterpart.

Experts believe the speed and efficiency gains will be enormous.

For one, the chips will no longer have to transfer data between the central processing unit (CPU) and storage blocks, which wastes both time and energy. For another, like biological neural networks, neuromorphic devices can support neurons that run millions of streams of parallel computation.

A “Brain-on-a-chip”
Optimism aside, reproducing the biological synapse in hardware form hasn’t been as easy as anticipated.

Neuromorphic chips exist in many forms, but often look like a nanoscale metal sandwich. The “bread” pieces are generally made of conductive plates surrounding a switching medium—a conductive material of sorts that acts like the gap in a biological synapse.

When a voltage is applied, as in the case of data input, ions move within the switching medium, which then creates conductive streams to stimulate the downstream plate. This change in conductivity mimics the way biological neurons change their “weight,” or the strength of connectivity between two adjacent neurons.

But so far, neuromorphic synapses have been rather unpredictable. According to Kim, that’s because the switching medium is often comprised of material that can’t channel ions to exact locations on the downstream plate.

“Once you apply some voltage to represent some data with your artificial neuron, you have to erase and be able to write it again in the exact same way,” explains Kim. “But in an amorphous solid, when you write again, the ions go in different directions because there are lots of defects.”

In his new study, Kim and colleagues swapped the jelly-like switching medium for silicon, a material with only a single line of defects that acts like a channel to guide ions.

The chip starts with a thin wafer of silicon etched with a honeycomb-like pattern. On top is a layer of silicon germanium—something often present in transistors—in the same pattern. This creates a funnel-like dislocation, a kind of Grand Canal that perfectly shuttles ions across the artificial synapse.

The researchers then made a neuromorphic chip containing these synapses and shot an electrical zap through them. Incredibly, the synapses’ response varied by only four percent—much higher than any neuromorphic device made with an amorphous switching medium.

In a computer simulation, the team built a multi-layer artificial neural network using parameters measured from their device. After tens of thousands of training examples, their neural network correctly recognized samples 95 percent of the time, just 2 percent lower than state-of-the-art software algorithms.

The upside? The neuromorphic chip requires much less space than the hardware that runs deep learning algorithms. Forget supercomputers—these chips could one day run complex computations right on our handheld devices.

A Magnetic Boost
Meanwhile, in Boulder, Colorado, Dr. Michael Schneider at the National Institute of Standards and Technology also realized that the standard switching medium had to go.

“There must be a better way to do this, because nature has figured out a better way to do this,” he says.

His solution? Nanoclusters of magnetic manganese.

Schneider’s chip contained two slices of superconducting electrodes made out of niobium, which channel electricity with no resistance. When researchers applied different magnetic fields to the synapse, they could control the alignment of the manganese “filling.”

The switch gave the chip a double boost. For one, by aligning the switching medium, the team could predict the ion flow and boost uniformity. For another, the magnetic manganese itself adds computational power. The chip can now encode data in both the level of electrical input and the direction of the magnetisms without bulking up the synapse.

It seriously worked. At one billion times per second, the chips fired several orders of magnitude faster than human neurons. Plus, the chips required just one ten-thousandth of the energy used by their biological counterparts, all the while synthesizing input from nine different sources in an analog manner.

The Road Ahead
These studies show that we may be nearing a benchmark where artificial synapses match—or even outperform—their human inspiration.

But to Dr. Steven Furber, an expert in neuromorphic computing, we still have a ways before the chips go mainstream.

Many of the special materials used in these chips require specific temperatures, he says. Magnetic manganese chips, for example, require temperatures around absolute zero to operate, meaning they come with the need for giant cooling tanks filled with liquid helium—obviously not practical for everyday use.

Another is scalability. Millions of synapses are necessary before a neuromorphic device can be used to tackle everyday problems such as facial recognition. So far, no deal.

But these problems may in fact be a driving force for the entire field. Intense competition could push teams into exploring different ideas and solutions to similar problems, much like these two studies.

If so, future chips may come in diverse flavors. Similar to our vast array of deep learning algorithms and operating systems, the computer chips of the future may also vary depending on specific requirements and needs.

It is worth developing as many different technological approaches as possible, says Furber, especially as neuroscientists increasingly understand what makes our biological synapses—the ultimate inspiration—so amazingly efficient.

Image Credit: arakio / Shutterstock.com Continue reading →

Posted in Human Robots

#431900 Artificial muscles power up with new ...

Posted on January 11, 2018 by Android

Scientists are one step closer to artificial muscles. Orthotics have come a long way since their initial wood and strap designs, yet innovation lapsed when it came to compensating for muscle power—until now. A collaborative research team has designed a wearable robot to support a person's hip joint while walking. The team, led by Minoru Hashimoto, a professor of textile science and technology at Shinshu University in Japan, published the details of their prototype in Smart Materials and Structures, a journal published by the Institute of Physics. Continue reading →

Posted in Human Robots