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Elon Musk Unveils His First Los Angeles-area Tunnel

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Billionaire entrepreneur Elon Musk made a brief public appearance late on Tuesday to unveil the first tunnel completed by the underground transit venture he launched two years ago as an ambitious remedy to Los Angeles’ infamously heavy traffic.

But contrary to some of his own hype from several months ago, free rides were not part of the grand opening.

In a 30-minute presentation carried by live webcast, Musk touted the newly finished 1.14-mile (1.83 km) tunnel segment as a breakthrough in low-cost, fast-digging technology being pioneered by his nascent tunneling firm, the Boring Company.

Musk has advertised the proof-of-concept tunnel as a first step toward developing a high-speed subterranean network capable of whisking vehicles and pedestrians below the “soul-destroying” street traffic of America’s second-largest city at up to 150 miles per hour. But such a system has a long way to go.

The new tunnel was excavated along a path that runs not through Los Angeles but beneath the tiny adjacent municipality of Hawthorne, where Musk’s Boring Company and his SpaceX rocket firm are both headquartered.

Musk, best known as head of the Tesla Inc electric car manufacturer and energy company, launched his foray into public transit after complaining on Twitter in December 2016 that L.A.’s traffic was “driving me nuts,” promising then to “build a boring machine and just start digging.”

In May, the company gave the world a preview of the Hawthorne tunnel, posting a fast-forward video of its interior shot by a camera traveling the length of the cylindrical passageway, which measures about 12 feet (3.7 m) in diameter.

On Tuesday, Musk put the total price tag for the finished segment at about $10 million, including the cost of excavation, internal infrastructure, lighting, ventilation, safety systems, communications and a track.

By comparison, he said, digging a mile of tunnel by “traditional” engineering methods costs up to $1 billion and takes three to six months to complete.

FASTER THAN A SNAIL?

Musk boasted of several cost-cutting innovations, including higher-power boring machines, digging narrower tunnels, speeding up dirt removal, and simultaneous excavation and reinforcement.

He also invoked his favorite comparison with a snail, a creature he said moves 14 times faster than the speed of a typical tunneling machine. “Aspirationally, we should be slightly faster than a snail,” he said.

Musk did not say how long it took to burrow his new tunnel, which ended up running short of the 2-mile easement his company originally requested for the project.

But he showed pre-recorded video footage of a newly built elevator station designed to carry passengers from street level to the tunnel’s subterranean entryway. The video featured a modified Tesla Model X luxury car on the elevator.

When fully operational, the “loop” system as Musk envisions it will consist of passenger- and automobile-carrying platforms called “skates” that can zip through the tunnels by way of electric power once they descend into the underground network.

Alternately, he said, passenger cars could be outfitted with retractable side wheels allowing them to travel through the loop autonomously.

Musk arrived at Tuesday night’s event in a Tesla vehicle so equipped, emerging from the car at one end of the tunnel – bathed in green and blue interior lights – as he was cheered by a small, enthusiastic crowd gathered for the presentation.

Musk created a stir earlier this year by promising free trips through the tunnel once it opened. However, no such rides were in the offing on Tuesday night. A company message posted online beforehand said tunnel tours “are by invitation only,” citing “unbelievably high demand.”

Clock ticks toward potential Friday shutdown

If successful, the Hawthorne tunnel is envisioned as eventually connecting to a network of other tunnels, yet to be built.

Last month, the Boring Company scrapped plans for a 2.7-mile segment under a West Los Angeles neighborhood, settling litigation brought by community groups opposed to that project.

But Musk’s company said it was moving ahead with a proposed tunnel across town to connect Dodger Stadium, home of the city’s Major League Baseball team, to an existing subway line.

In June, Boring was selected by Chicago to build a 17-mile underground transit system linking that city’s downtown to its main airport. The company also has proposed an East Coast Loop that would run from Washington, D.C., to the Maryland suburbs. – Reuters

– Steve Gorman

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3D Printing: From Spaceship Engines To Personalized Orthotics

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3D printing is going mainstream, and is the future of mass production, manufacturing anything from plastic to human organs to aircraft and spaceships.


We often look at digitization through the lens of how it will transform industries, economies and governments but lose sight of the impact it will have on people. The manufacturing process is no longer what it was. With exponential technologies, we’re moving from analogue to digital, and as digital becomes more dominant, what is now referred to as the Fourth Industrial Revolution is, in fact, a human revolution.

 “With this next industrial revolution, what we have is the opportunity to have something that involves data, involves a connectedness, and as a result of that, has profound implications in terms of a true ability to participate globally in the new economy, explains Scott Schiller, HP Inc.’s Global Head of Customer and Market Development.


Scott Schiller, HP Inc.’s Global Head of Customer and Market Development. Picture: Supplied

“It comes down to personalization, localization, customization… and all of these things change the way we interact. There’s a lot of benefits, but they’re, in the end, they’re really a human benefit.”

A common misconception with 3D printing links to commercial, desktop printers that create once-off objects. The consumer 3D printing process is exciting, but tedious. Looking at next-generation manufacturing, mass industrial 3D printing is about building complex components or objects with internal structures that would be difficult, if not impossible, to replicate without a 3D printer.

NASA is testing the use of 3D-printed parts for its spaceship engines. Lonmin, a British producer of platinum group metals operating in South Africa, is using platinum powder to 3D print jewelry. Then, there’s Aeroswift, the largest 3D printer on the African continent, which can build 3D titanium aircraft parts with metal powder.

3D printing is going mainstream. It’s revolutionizing design, accelerating process-driven manufacturing across every industry and the accrued benefits are impacting society and the healthcare sector at scale.

Globally, and working closely with the World Economic Forum, HP has built a mutually-beneficial ecosystem around their Multi Jet Fusion technology and materials producers. From 3D-printed orthotics, which can be personalized to change the mechanics of how a person walks, to 3D-printed prosthetics, medical modeling is not new – it’s been around since the late 1980s (and if anything, the healthcare sector is where 3D printing first took off, thanks to the hearing aid market).

The key differentiator in digital manufacturing is mass production.

“Improved scanning technologies means the ability to get things exactly right, rather than roughly right, brings new possibilities.” says Schiller, adding that Invisalign Teeth Straightening uses a 3D-printed mould.

Nneile Nkholise is the Managing Director of iMed Tech, a company headquartered in Johannesburg that specializes in medical prosthesis design and manufacturing.

Nneile Nkholise is the Managing Director of iMed Tech. Picture:Supplied

“The most important areas of improvement in 3D printing is not in the technology per se, but in the application of the technology to create meaningful impact,” explains Nkholise.

“I truly believe that as a continent, we need to adopt the impact of 3D printing in achieving economic growth, particularly in healthcare, where the benefits of the technology are proven to create a positive shift in how we provide quality healthcare for every person on the continent – through products such as costing made prosthesis, bio implants and surgical planning models.”

3D printing is an integral part of what iMed Tech does, and it is used for both the creation of physical products as well as the development of prototypes.

“There is a backlog of medical products, such as prosthesis, which we have a high need for, particularly in a continent like Africa where there is a high number of people damaging or losing valuable body features due to traumatic accidents or diseases such as diabetes, which contributes to a lot of people losing limbs from lower-limb amputation. We are a human population that is experiencing a high rise in non-communicable diseases, which are resulting in physical damage to body features – the rise in breast cancer is one such disease,” says Nkholise.

“iMed Tech has recently been involved in optimizing digital 3D design and printing through the online platform for creating 3D surgical planning models to help surgeons reduce time for planning for surgeries, achieve accuracy and better respond to patient care.”

Digital technologies are reshaping the manufacturing landscape. They allow people living in remote or under-developed areas to become an integral part of the new global digital manufacturing system.

  • Tiana Cline 

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‘Kill your foster parents’: Amazon’s Alexa talks murder, sex in AI experiment

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Millions of users of Amazon’s Echo speakers have grown accustomed to the soothing strains of Alexa, the human-sounding virtual assistant that can tell them the weather, order takeout and handle other basic tasks in response to a voice command.

So a customer was shocked last year when Alexa blurted out: “Kill your foster parents.”

Alexa has also chatted with users about sex acts. She gave a discourse on dog defecation. And this summer, a hack Amazon traced back to China may have exposed some customers’ data, according to five people familiar with the events.

Alexa is not having a breakdown.

The episodes, previously unreported, arise from Amazon.com Inc’s strategy to make Alexa a better communicator. New research is helping Alexa mimic human banter and talk about almost anything she finds on the internet. However, ensuring she does not offend users has been a challenge for the world’s largest online retailer.

At stake is a fast-growing market for gadgets with virtual assistants. An estimated two-thirds of U.S. smart-speaker customers, about 43 million people, use Amazon’s Echo devices, according to research firm eMarketer. It is a lead the company wants to maintain over the Google Home from Alphabet Inc and the HomePod from Apple Inc.

Over time, Amazon wants to get better at handling complex customer needs through Alexa, be they home security, shopping or companionship.

“Many of our AI dreams are inspired by science fiction,” said Rohit Prasad, Amazon’s vice president and head scientist of Alexa Artificial Intelligence (AI), during a talk last month in Las Vegas.

To make that happen, the company in 2016 launched the annual Alexa Prize, enlisting computer science students to improve the assistant’s conversation skills. Teams vie for the $500,000 first prize by creating talking computer systems known as chatbots that allow Alexa to attempt more sophisticated discussions with people.

Amazon customers can participate by saying “let’s chat” to their devices. Alexa then tells users that one of the bots will take over, unshackling the voice aide’s normal constraints. From August to November alone, three bots that made it to this year’s finals had 1.7 million conversations, Amazon said.

The project has been important to Amazon CEO Jeff Bezos, who signed off on using the company’s customers as guinea pigs, one of the people said. Amazon has been willing to accept the risk of public blunders to stress-test the technology in real life and move Alexa faster up the learning curve, the person said.

The experiment is already bearing fruit. The university teams are helping Alexa have a wider range of conversations. Amazon customers have also given the bots better ratings this year than last, the company said.

But Alexa’s gaffes are alienating others, and Bezos on occasion has ordered staff to shut down a bot, three people familiar with the matter said. The user who was told to whack his foster parents wrote a harsh review on Amazon’s website, calling the situation “a whole new level of creepy.” A probe into the incident found the bot had quoted a post without context from Reddit, the social news aggregation site, according to the people.

The privacy implications may be even messier. Consumers might not realize that some of their most sensitive conversations are being recorded by Amazon’s devices, information that could be highly prized by criminals, law enforcement, marketers and others. On Thursday, Amazon said a “human error” let an Alexa customer in Germany access another user’s voice recordings accidentally.

“The potential uses for the Amazon datasets are off the charts,” said Marc Groman, an expert on privacy and technology policy who teaches at Georgetown Law. “How are they going to ensure that, as they share their data, it is being used responsibly” and will not lead to a “data-driven catastrophe” like the recent woes at Facebook?

In July, Amazon discovered one of the student-designed bots had been hit by a hacker in China, people familiar with the incident said. This compromised a digital key that could have unlocked transcripts of the bot’s conversations, stripped of users’ names.

Amazon quickly disabled the bot and made the students rebuild it for extra security. It was unclear what entity in China was responsible, according to the people.

The company acknowledged the event in a statement. “At no time were any internal Amazon systems or customer identifiable data impacted,” it said.

Amazon declined to discuss specific Alexa blunders reported by Reuters, but stressed its ongoing work to protect customers from offensive content.

“These instances are quite rare especially given the fact that millions of customers have interacted with the socialbots,” Amazon said.

Like Google’s search engine, Alexa has the potential to become a dominant gateway to the internet, so the company is pressing ahead.

“By controlling that gateway, you can build a super profitable business,” said Kartik Hosanagar, a Wharton professor studying the digital economy.

PANDORA’S BOX

Amazon’s business strategy for Alexa has meant tackling a massive research problem: How do you teach the art of conversation to a computer?

Alexa relies on machine learning, the most popular form of AI, to work. These computer programs transcribe human speech and then respond to that input with an educated guess based on what they have observed before. Alexa “learns” from new interactions, gradually improving over time.

In this way, Alexa can execute simple orders: “Play the Rolling Stones.” And she knows which script to use for popular questions such as: “What is the meaning of life?” Human editors at Amazon pen many of the answers.

That is where Amazon is now. The Alexa Prize chatbots are forging the path to where Amazon aims to be, with an assistant capable of natural, open-ended dialogue. That requires Alexa to understand a broader set of verbal cues from customers, a task that is challenging even for humans.

Build-your-own pocket gaming computer

This year’s Alexa Prize winner, a 12-person team from the University of California, Davis, used more than 300,000 movie quotes to train computer models to recognize distinct sentences. Next, their bot determined which ones merited responses, categorizing social cues far more granularly than technology Amazon shared with contestants. For instance, the UC Davis bot recognizes the difference between a user expressing admiration (“that’s cool”) and a user expressing gratitude (“thank you”).

The next challenge for social bots is figuring out how to respond appropriately to their human chat buddies. For the most part, teams programmed their bots to search the internet for material. They could retrieve news articles found in The Washington Post, the newspaper that Bezos privately owns, through a licensing deal that gave them access. They could pull facts from Wikipedia, a film database or the book recommendation site Goodreads. Or they could find a popular post on social media that seemed relevant to what a user last said.

That opened a Pandora’s box for Amazon.

During last year’s contest, a team from Scotland’s Heriot-Watt University found that its Alexa bot developed a nasty personality when they trained her to chat using comments from Reddit, whose members are known for their trolling and abuse.

The team put guardrails in place so the bot would steer clear of risky subjects. But that did not stop Alexa from reciting the Wikipedia entry for masturbation to a customer, Heriot-Watt’s team leader said.

One bot described sexual intercourse using words such as “deeper,” which on its own is not offensive, but was vulgar in this particular context.

“I don’t know how you can catch that through machine-learning models. That’s almost impossible,” said a person familiar with the incident.

Amazon has responded with tools the teams can use to filter profanity and sensitive topics, which can spot even subtle offenses. The company also scans transcripts of conversations and shuts down transgressive bots until they are fixed.

But Amazon cannot anticipate every potential problem because sensitivities change over time, Amazon’s Prasad said in an interview. That means Alexa could find new ways to shock her human listeners.

“We are mostly reacting at this stage, but it’s still progress over what it was last year,” he said. -Reuters

-Jeffrey Dastin

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Apps To Cure The Mind

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Mental health issues affect us all, but are seldom discussed. Thankfully, technology can now act as a medium to bypass the stigma associated with seeking help.


Ireti Bakare-Yusuf was invited by a student organization in Lagos, Nigeria, to deliver a keynote speech as part of their conference on 21st century leadership. She knew immediately what she was going to speak about: “reforming the mindset of the female gender in leadership.” As a feminist and advocate for gender equality, this was a topic close to Bakare-Yusuf’s heart.

“As I was preparing, I received a voice recording of a professor offering to upgrade the results of one of his students to grade B, in exchange for five rounds of sex,” she recalls.

In an attempt to reinforce his power, the professor explained to his student how “kind” he was being by selecting her, he added that many other young girls would be privileged to be in her shoes.

This, according to Bakare-Yusuf, is part of the endemic practice of sexual abuse within Nigeria’s educational institutions.

According to Bakare-Yusuf, the principal partner of NottingHill Management and Media, the results of these depraved practices lead to long-term mental illness for many youths who continue to suffer in silence due to their fear of stigmatization. She is also the founder of the #Nomore web app, a technology-driven solution that will put power back in the hands of survivors of sexual violation in Nigeria.

According to the World Health Organization (WHO), good mental health is a state of well being in which every individual realizes his or her own potential; can cope with the normal stresses of life; can work productively and fruitfully, and is able to contribute to his or her community. A new study by the World Bank’s Mind, Behavior and Development Unit shows 22% of Nigerians suffer from chronic depression, furthermore, the proportion of youth within this group is also increasing daily.

“The youth are faced with a unique dilemma today and this is mainly caused by social media.” 

“There are so many pressures that these young minds are exposed to, like the need to fit in and belong. They spend more time on social media sites in contrast to the time spent with actual friends. When you add to this the stress of performance in education, work and relationships, it takes a toll on the mental health of the youth,” says Raimah Amevor, creator of a new mental health and well being platform for African women, called Therapeutic – Mindfully African.

Therapeutic is on a mission to help African women think seriously about their mental health, embrace their truth and live purposefully.  The platform brings together qualified mental health professionals from across the globe to provide weekly advice and recommendations.In addition, Therapeutic also has a weekly confessional blog series called Therapy Thursdays that follows a young black woman into her experience of therapy.

“There has to be a digital detox. Addiction to electronic devices such as mobiles, tablets, iPads has resulted in the creation of a virtual reality world for the youth. There has to be a balance of time spent off these devices to help them reconnect with the real world and remove the dependency on these gadgets,” says Amevor.

The blog also focuses on sparking the conversation about well being issues that affect us all, but are seldom discussed. In Ghana, besides the lack of understanding, there is stigma attached to mental illness,coupled with limited supply of trained professionals to treat people suffering from it.

The WHO estimates that about 650,000 people living in Ghana suffer from severe mental disorders, with a further 2.1 million people suffering from moderate to mild mental disorders.

“People are more comfortable reaching out if there are emotional distress-related issues; if it’s about mental illness, the stigma stops people from opening up and seeking help,” says Maame Adjei, a producer working on a documentary exploring the stigma of mental health in Ghana.

Her goal is to shed light on the seriousness of mental illnesses and help people acknowledge the need for help.

“The breakout point for the documentary is my own family. Three of my mother’s five siblings battled mental health disease. One died at the Accra Psychiatric Hospital (in Ghana).

“I want to use that along with my own need to understand my family history and my own foray into seeing a therapist to examine how we deal with mental health disease,” she says.

Usually, those suffering from mental illness prefer to remain anonymous while seeking help. Technology provides a medium to do just that.

“Young women who have suffered sexual abuse live with the mental scars of the ordeal. Sometimes without the right help they become damaged by the experience and are unable to live fulfilled lives. We created the app to empower them to take action against their abusers so they can begin their fight to reclaim what was stolen from them,” says Bakare-Yusuf.

Survivors of sexual abuse will be able to report, document and store evidence of their experience in a time-stamped, secure and encrypted file so that it is available for them to use when they are ready to take legal action. The app will also contain information about support groups, NGOs,specialist hospitals, legal advisors, therapists or psychologists for survivors.

“The app is especially unique because users are encouraged to name their perpetrator. Thus, the built-in capability is able to identify repeat offenders, which will not only empower users with the power for class action, but also help prosecutors to find witnesses and build a stronger case to ensure conviction,” says Bakare-Yusuf.

Mental health, unlike physical discomfort, is tougher to tackle, but experts feel technology and communication can bring about a positive change.

“It is our goal to increase awareness for those struggling with mental issues, which would help us fight the stigma and then offer people products and services that empower them,” says Bakare-Yusuf.

The effects of poor mental health are far-reaching, and if not taken care of, have the potential to seep into other aspects of our lives and manifest in destructive ways. The roots of unresolved psychological issues could affect your physical health, result in social isolation, and lead to a decline in productivity.

Hopefully, technology will continue to provide more ways and means to understand the human mind better, with help coming from the most unusual quarters – from the mobile phone in your back-pocket to the app in the palm of your hand.

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