Apple's Activation Lock is an anti-theft feature built into iOS, watchOS, and macOS Catalina that prevents people from restoring your Apple devices without your permission. "With the release of macOS Catalina earlier this fall, any Mac that's equipped with Apple's new T2 security chip now comes with Activation Lock," writes iFixit's Craig Lloyd. What this means is that there will likely be thousands of perfectly good Macs being parted out or scrapped instead of being put into the hands of people who could really use them. From the report: Activation Lock was designed to prevent anyone else from using your device if it's ever lost or stolen, and it's built into the "Find My" service on iPhones, iPads, and other Apple devices. When you're getting rid of an old phone, you want to use Apple's Reset feature to wipe the phone clean, which also removes it from Find My iPhone and gets rid of the Activation Lock. But if you forget, and sell your old iPhone to a friend before you properly wipe it, the phone will just keep asking them for your Apple ID before they can set it up as a new phone. In other words, they won't be able to do much with it besides scrap it for parts.

That seems like a nice way to thwart tech thieves, but it also causes unnecessary chaos for recyclers and refurbishers who are wading through piles of locked devices they can't reuse. This reduces the supply of refurbished devices, making them more expensive -- oh, and it's an environmental nightmare. [...] The T2 security chip, however, erases any hope and makes it impossible to do anything on a Mac without the proper Apple ID credentials. Attempting any kind of hardware tinkering on a T2-enabled Mac activates a hardware lock, which can only be undone by connecting the device to Apple-authorized repair software. It's great for device security, but terrible for repair and refurbishment. While recyclers may not be dealing with as many locked Macs as locked iPhones (especially since Activation Lock on Macs is still very new, and there are specific software criteria that need to be met), it's only a matter of time before thousands upon thousands of perfectly working Macs are scrapped or shredded, for lack of an unknown password.

An anonymous reader shares an update to a 2017 study from the IVL Swedish Environmental Research Institute that claimed the manufacturing of big batteries for electric vehicles generates so much emissions that all later savings are canceled out. "Based on the data that it had to work with, the institute's study put the emissions at 150-200 kilograms of CO2 per kilowatt-hour of lithium-ion battery capacity -- one of the highest estimates that has been published," reports Ars Technica. "But IVL recently took another pass at this effort, incorporating newer data and some slightly different methods. This new study puts the emissions at 61-106kg, depending on the energy sources and efficiencies of different manufacturing plants. That cuts the estimate in half and puts it much more in line with other studies." From the report: So what accounts for the change, exactly? A few things are going on here. The first is a simple methodological change -- this study leaves out emissions associated with recycling the battery, which accounted for 15kg of CO2 in the 2017 estimate. There are different ways to define the boundaries of such a life-cycle analysis, including "cradle-to-grave" methods that cover disposal and "cradle-to-gate" methods that cover up to the point you receive the car. To make apples-to-apples comparisons, you have to know what kind of estimate you're looking at.

More importantly, the study took advantage of more recent data that measures emissions during critical steps in the manufacturing process. As the battery manufacturing industry matures, plants are running closer to capacity and with efficiency improvements. Battery chemistry, too, is shifting. [...] The cathodes and anodes of these batteries are made by mixing materials in a solvent (water or otherwise) and then evaporating the solvent to leave a powder behind. This drying dominates the energy use of the manufacturing process. More recent measurements of this process in operating plants are a major source of the difference between the new study and the 2017 study, which estimated 1.6 time to 3 times greater energy use for drying.

The new version also acknowledges that the electricity used in the manufacturing process is coming from cleaner sources and could potentially come entirely from renewables. That helps bring the low end of the estimated range down. Of the estimated 61-106kg of CO2 emissions per kilowatt-hour of battery capacity, 59kg comes from the raw materials used in the battery. Then, the manufacturing process accounts for 2-47kg, depending on the mix of energy sources used. The 2017 study used a slightly higher number for raw materials -- 60-70kg of CO2 -- but estimated manufacturing emissions at 70-110kg. Then, it added emissions associated with recycling.

An anonymous reader shares a report: AI models invariably encounter ambiguous situations that they struggle to respond to with instructions alone. That's problematic for autonomous agents tasked with, say, navigating an apartment, because they run the risk of becoming stuck when presented with several paths. To solve this, researchers at Amazon's Alexa AI division developed a framework that endows agents with the ability to ask for help in certain situations. Using what's called a model-confusion-based method, the agents ask questions based on their level of confusion as determined by a predefined confidence threshold, which the researchers claim boosts the agents' success by at least 15%.

"Consider the situation in which you want a robot assistant to get your wallet on the bed ... with two doors in the scene and an instruction that only tells it to walk through the doorway," wrote the team in a preprint paper describing their work. "In this situation, it is clearly difficult for the robot to know exactly through which door to enter. If, however, the robot is able to discuss the situation with the user, the situational ambiguity can be resolved." The team's framework employs two agent models: Model Confusion, which mimics human user behavior under confusion, and Action Space Augmentation, a more sophisticated algorithm that automatically learns to ask only necessary questions at the right time during navigation. Human interaction data is used to fine-tune the second model further so that it becomes familiar with the environment.

After launching nearly a dozen Echo speaker models in India in two years, Amazon said on Wednesday it is adding a new variant to the mix that addresses one of the most requested features from customers in the nation: Portability. From a report: The e-commerce giant today unveiled the Echo Input Portable Smart Speaker Edition, a new variant in the lineup that includes a built-in battery. The 4,800mAh enclosed battery will offer up to 10 hours of continuous music playing or up to 11 hours of stand-by life, the company said. "Portability has been one of the most requested features in India," said Miriam Daniel, VP of Alexa Devices. "You want to be able to carry Alexa with you from room to room within your homes. So we have designed something just for you."

An anonymous reader quotes a report from The Wall Street Journal: Huawei's latest phone, which it unveiled in September -- the Mate 30 with a curved display and wide-angle cameras that competes with Apple's iPhone 11 -- contained no U.S. parts, according to an analysis by UBS and Fomalhaut Techno Solutions, a Japanese technology lab that took the device apart to inspect its insides. In May, the Trump administration banned U.S. shipments to Huawei as trade tensions with Beijing escalated. That move stopped companies like Qualcomm Inc. and Intel Corp. from exporting chips to the company, though some shipments of parts resumed over the summer after companies determined they weren't affected by the ban.

While Huawei hasn't stopped using American chips entirely, it has reduced its reliance on U.S. suppliers or eliminated U.S. chips in phones launched since May (Warning: source paywalled; alternative source), including the company's Y9 Prime and Mate smartphones, according to Fomalhaut's teardown analysis. Similar inspections by iFixit and Tech Insights Inc., two other firms that take apart phones to inspect components, have come to similar conclusions. With the Mate 30, audio chips supplied in older versions came from Cirrus Logic. In the newer Mate 30 models, chips were provided by NXP Semiconductors NV, a Dutch chip maker, according to Fomalhaut. Power amplifiers provided by Qorvo or Skyworks were replaced with chips from HiSilicon, Huawei's in-house chip design firm, the teardown analysis showed. A Huawei spokesman said it is the company's "clear preference to continue to integrate and buy components from U.S. supply partners. If that proves impossible because of the decisions of the U.S. government, we will have no choice but to find alternative supply from non-U.S. sources."

"On the 25th anniversary of the original Sony PlayStation, The Verge shares the story of the PlayStation supercomputers," writes Slashdot reader jimminy_cricket. From the report: Dozens of PlayStation 3s sit in a refrigerated shipping container on the University of Massachusetts Dartmouth's campus, sucking up energy and investigating astrophysics. It's a popular stop for tours trying to sell the school to prospective first-year students and their parents, and it's one of the few living legacies of a weird science chapter in PlayStation's history. Those squat boxes, hulking on entertainment systems or dust-covered in the back of a closet, were once coveted by researchers who used the consoles to build supercomputers. With the racks of machines, the scientists were suddenly capable of contemplating the physics of black holes, processing drone footage, or winning cryptography contests. It only lasted a few years before tech moved on, becoming smaller and more efficient. But for that short moment, some of the most powerful computers in the world could be hacked together with code, wire, and gaming consoles. "The game consoles entered the supercomputing scene in 2002 when Sony released a kit called Linux for the PlayStation 2," reports The Verge. Craig Steffen, senior research scientist at the National Center for Supercomputing Applications, and his group hooked up between 60 and 70 PlayStation 2s, wrote some code, and built out a library.

"The PS3 entered the scene in late 2006 with powerful hardware and an easier way to load Linux onto the devices," the report adds. "Researchers would still need to link the systems together, but suddenly, it was possible for them to imagine linking together all of those devices into something that was a game-changer instead of just a proof-of-concept prototype."

An anonymous reader quotes a report from Bloomberg: Amazon Web Services has developed a more powerful version of its own chips to power services for cloud-computing customers, as well as some of AWS's own programs. AWS Chief Executive Andy Jassy on Tuesday introduced a second-generation chip, called Graviton2, aimed at general-purpose computing tasks. He didn't specify a release date. The company last year unveiled its first line of Graviton chips, which it said would support new versions of its main EC2 cloud-computing service. Prior to that, Amazon -- and other big cloud operators -- had almost exclusively used Intel Xeon chips. The company said at the time that the Graviton-backed cloud service would be available at a "significantly lower cost" than existing offerings run on Intel processors. Jassy said Intel is "a very close partner," but to push the envelope on prices, "we had to do some innovating ourselves."

"Amazon is using its 2015 acquisition of startup Annapurna Labs, which Jassy called a 'a big turning point for us,' to design its own chips," reports Bloomberg. "The new processor uses technology from SoftBank Group Corp. unit ARM Holdings, a standard that dominates in mobile phones."

Qualcomm uncorked this year's version of its Snapdragon Technology Summit by announcing the names of its two new upcoming Snapdragon chips, the Snapdragon 865 and the Snapdragon 765/765G. Not surprisingly, the emphasis this year is on 5G, and the "AI" which those chips will apply for software enhancements. From a report: Because this is the Snapdragon Technology Summit, we expect to hear more details of each of these chips in the coming days. For now, however, Qualcomm is just teasing the names and their basic capabilities. Qualcomm's Snapdragon chips are some of the most prevalent processors in smartphones and a mainstay in high-end flagships, powering the Samsung Galaxy S10 and OnePlus 7 Pro among others. Both of these phones incorporate the Qualcomm Snapdragon 855 that was introduced at last year's Snapdragon Summit, and it's fair to say we'd expect the eventual successor of those phones to use the new chips, as well.

Alex Katouzian, senior vice president and general manager of mobile at Qualcomm Technologies, introduced both the Snapdragon 865 and the Snapdragon 765/765G but said nothing about a enhanced "Plus" version, as Qualcomm introduced with the Snapdragon 855 Plus midway through this year. Specifically, Katzouian said, the Snapdragon 865 will be built around the Snapdragon X55, Qualcomm's second-gen 5G modem that the company launched in February of this year. The X55 was part of the "Project Limitless" PC platform Qualcomm showed off with Lenovo at Computex, but is expected to be much more of a factor within smartphones.

AmiMoJo quotes a report from The Guardian: The number of insurers withdrawing cover for coal projects more than doubled this year and for the first time U.S. companies have taken action, leaving Lloyd's of London and Asian insurers as the "last resort" for fossil fuels, according to a new report. The report, which rates the world's 35 biggest insurers on their actions on fossil fuels, declares that coal -- the biggest single contributor to climate change -- "is on the way to becoming uninsurable" as most coal projects cannot be financed, built or operated without insurance.

Ten firms moved to restrict the insurance cover they offer to companies that build or operate coal power plants in 2019, taking the global total to 17, said the Unfriend Coal campaign, which includes 13 environmental groups such as Greenpeace, Client Earth and Urgewald, a German NGO. The report will be launched at an insurance and climate risk conference in London on Monday, as the UN climate summit gets underway in Madrid. The first insurers to exit coal policies were all European, but since March, two U.S. insurers -- Chubb and Axis Capital -- and the Australian firms QBE and Suncorp have pledged to stop or restrict insurance for coal projects. At least 35 insurers with combined assets of $8.9 trillion, equivalent to 37% of the insurance industry's global assets, have begun pulling out of coal investments. A year ago, 19 insurers holding more than $6 trillion in assets were divesting from fossil fuels.

"FedEx delivery robots invade New York City streets," read one newspaper's headline, describing the six-wheeled "SameDay" bots that the company is testing in four cities.

But this week New York City told them they're not welcome, CNN reports: The delivery robot, called Roxo, is not actually being tested in New York, but was visiting the city for a special event, a FedEx spokesperson told CNN. Nevertherless, lawyers for the New York City Department of Transportation delivered a cease-and-desist letter to FedEx on Monday, warning that the robots were violating multiple traffic provisions... Motor vehicles are not permitted to operate on New York City sidewalks, and no motor vehicles may be operated without "having at least one hand" on the the steering mechanism any time the vehicle is moving, according to the letter.

"FedEx's robots wouldn't just undercut the jobs of hardworking New Yorkers -- they would be a danger on our crowded streets," Will Baskin-Gerwitz, Mayor Bill De Blasio's deputy press secretary, told CNN.

"The world is getting windier," reports WBUR, citing a new study published in the journal Nature Climate Change. And they add that this could actually be a boon to wind farm operators, "since faster wind means more efficient wind turbines."

Researchers analyzed decades of weather data and determined global wind speeds have risen dramatically over the past 10 years... Princeton University scholar Timothy Searchinger, one of the study's authors, says researchers expect wind speed to continue to increase, he says, which has multiple positive effects. Green energy through wind turbines will see these impacts. "When you increase the wind speed by a little bit, you still increase the power quite a lot," he says...

As a result of increasing wind speed, the average wind turbine generated roughly 17% more electricity in 2017 than it did in 2010, the study found...

Now, humans can capitalize on this change for at least the next decade, he says. "When you size wind turbines, you can size them differently to take advantage of that additional power," he says. "That's really the key point, is that if we can predict these changing patterns 10 years in advance, we can size our turbines so that they take advantage of the maximum amount of wind that is reasonable and economical."

Amazon's cloud computing unit has designed a second, more powerful generation of datacenter processor chip, Reuters reported Thursday, the latest sign that the e-commerce company is pouring money into custom silicon for its fastest-growing business. From a report: The new Amazon Web Services chip uses technology from SoftBank Group-owned Arm Holdings, the sources said. One of the sources familiar with the matter said it will be at least 20% faster than Amazon's first Arm-based chip, named Graviton, which was released last year as a low-cost option for easier computing tasks. If Amazon Web Services' chip efforts are successful, it could lessen the unit's reliance on Intel and Advanced Micro Devices for server chips. In cloud computing, businesses rent out servers from Amazon instead of running their own datacenters. Analysts expect Amazon's cloud unit to generate $34.9 billion in sales in 2019, according to IBES data from Refinitiv.

Valve has confirmed to The Verge that it will stop making its Steam Controller. Currently, the gamepads are on sale for just $5 -- 90 percent off its original price -- but once these controllers are gone, Valve doesn't plan to make any more. From the report: [W]hile I can't recommend it wholeheartedly like I did when Valve discontinued its amazing Steam Link wireless HDMI cable-in-a-box, I will say that $13 is a pretty excellent price if you ever plug your PC into your television, or sling your PC games wirelessly to the Steam Link app on your phone and need an accurate solution. That's because the controller, originally introduced in 2013 as part of Valve's failed Steam Machines initiative, is one of the most fully customizable gamepads ever made, and perhaps the only one to offer mouse-like pinpoint precision. That's because it uses a pair of trackpads, complete with tiny solenoid actuators for haptic feedback, so you can emulate a mouse or trackball. Plus, there are paddles around back for crouching, jumping, strafing, you name it without needing to take your thumbs off those trackpads.

But that's just the beginning. Thanks to Valve's robust configuration software, the Steam Controller has developed something of a cult following with thousands of gamers uploading their custom configurations for their entire game libraries on Steam. It's not uncommon to fire up a game and find dozens of fancy profiles that place the game's functions at your fingertips plus add entirely new control modes. One common modifier is to hold down a button to switch the entire gamepad into a gyroscopic aiming mode, not only readying your character's weapon, but slowing down your aiming sensitivity while allowing you to physically shift the controller a small amount to line up a shot using its built-in gyroscope. [...] I doubt I'm actually going to convince you to buy a Steam Controller if you've never been sold on the idea before. (Plus, paying $8 for shipping seems a bit much.) But I'm keeping mine around as a piece of gaming history, and I'm a little tempted to buy a second just in case I ever lose its USB dongle.

An anonymous reader quotes a report from Ars Technica: In April of this year, Intel cancelled its 5G-modem building plans. This week, it's announcing that they're back on the table -- but this time, with system-on-chip vendor MediaTek building the hardware. The partnership has Intel setting the 5G specifications, MediaTek developing the modem to match, and Intel optimizing and validating it afterwards. Intel will also lend its marketing and integration muscle to convince OEMs to use the new hardware and help them make sure it works well in final products. This also means Intel will be writing operating-system-level drivers for the modems.

The partnership looks like a sensible one for both parties: Intel has been struggling to get its own 10nm hardware out the door on time, so getting this hardware design task off its plate may relieve some pressure there, while still keeping the company in an emerging market. MediaTek, on the other hand, can definitely benefit from Intel's software development expertise and deep integration with OEM vendors in the PC space. Specifically, the companies will be adapting MediaTek's existing Helio M70 5G modem for use in PC hardware. The M70 modem is already being built into MediaTek's Dimensity family of ARM System-on-Chip (SoC) designs; the new partnership gives MediaTek a whole new platform to market to and gives Intel a foot back into the door in 5G. It also may represent a way for Intel to push back against ARM-based Windows hardware like Samsung's Galaxy Book S, built on Qualcomm's Snapdragon 8cx platform. We can expect to see the resulting hardware shipping some time in 2021, the report adds.

Last week, Apple responded to a series of questions that the US House Judiciary Committee sent to it back in September as part of a broader antitrust probe. Apple answered a series of questions about its hardware repair programs. It emphasized that it doesn't restrict repairs or refuse to repair gadgets that might have been fixed previously by unauthorized technicians. For right-to-repair advocates, though, Apple's answers weren't good enough. From a report: Proponents of a more open source approach to repairing gadgets say that Apple's on-the-record responses are examples of "expert question-dodging," or in some cases "downright false." Apple's responses have even raised questions about the definition of a "repair" -- a kind of consumer tech version of what the meaning of the word "is" is. That's according to iFixit, a business built on DIY electronics repairs and one of the more consistently vocal groups in the world of product repairs and sustainability. Now the right-to-repair arm of the US Public Interest Research Group is also weighing in, saying Apple is trying to "weave around key criticisms." The group is lobbying for Congress to take a harder look at Apple's claims. "The fact is that Apple, and many other manufacturers, take all manner of actions that restrict repair, which result in higher costs for consumers and a faster rate of obsolescence," says Nathan Proctor, director of the US PIRG's Right to Repair campaign. Proctor also argues that when Apple offers replacement products instead of repairing a device, it is effectively refusing to repair.

An anonymous reader quotes a report from Bloomberg: Audi plans to eliminate roughly 15% of its German workforce to lift earnings by $6.6 billion as Volkswagen AG's largest profit maker pushes ahead with a restructuring plan to help adapt to the costly transition to electric cars. The turnaround is aimed at regaining ground lost to luxury-car leaders Mercedes-Benz and BMWand counter pressure from Tesla. Volkswagen has been scrambling to revive Audi's fortunes after turmoil sparked by the aftermath of the 2015 diesel-cheating scandal. By 2025, Audi plans to cut as many as 9,500 jobs in Germany and streamline operations at its two main factories in its home country. The positions will be reduced through attrition and voluntary measures including early retirement, Audi said in a statement Tuesday after reaching an agreement with employee representatives. The approximately 50,000 remaining employees in Germany will have job guarantees through 2029, and Audi will create 2,000 new jobs to strengthen its engineering muscle for electric cars and digital offerings.

Sadly, it's looking like the Ford F-150 versus Tesla Cybertruck tow battle probably won't happen. TechCrunch reports: Tesla CEO Elon Musk poked the figurative Dearborn, Michigan bear in the middle of the company's Cybertruck unveiling when he played a video of the futuristic electric truck pulling an F-150 in what was pitched as a head-to-head contest. Many were quick to question whether it was a fair fight, including astrophysicist and author Neil deGrasse Tyson. But what really got Musk's attention was a tweet from Sundeep Madra, VP of Ford X, the automaker's venture incubator.

Madra tweeted to Musk challenging the CEO to send Ford a Cybertruck to do an "apples to apples" test. Musk, who is well versed in the Twitter troll, responded with a "bring it on." It seems Madra's tweet wasn't meant to be a serious challenge, but a "tongue in cheek" troll, according to Ford. "Sunny's tweet was tongue in cheek to point out the absurdity of Tesla's video, nothing more," a Ford spokesperson said in an email to TechCrunch. "With America's best-selling truck for 42 years, we've always focused on serving our truck customers regardless of what others say or do. We look forward to our all-new F-150 hybrid coming next year and all-electric F-150 in a few years."

dryriver writes: When you run a real-time video processing algorithm on a GPU, you notice that some math functions execute very quickly on the GPU and some math functions take up a lot more processing time or cycles, slowing down the algorithm. If you were to implement that exact GPU algorithm as a dedicated ASIC hardware chip or perhaps on a beefy FPGA, what kind of speedup -- if any -- could you expect over a midrange GPU like a GTX 1070? Would hardwiring the same math operations as ASIC circuitry lead to a massive execution time speedup as some people claim -- e.g. 5x or 10x faster than a general purpose Nvidia GPU -- or are GPUs and ASICs close to each other in execution speed?

Bonus question: Is there a way to calculate the speed of an algorithm implemented as an ASIC chip without having an actual physical ASIC chip produced? Could you port the algorithm to, say, Verilog or similar languages and then use a software tool to calculate or predict how fast it would run if implemented as an ASIC with certain properties (clock speed, core count, manufacturing process... )?

New submitter AllHail writes: HPE SAS solid state drives are affected by a firmware problem which causes these drives to stop working after 32768 power-on hours (3 years and 9 months). If these drives are not flashed with updated firmware before the failure, the drives and the data on them become unrecoverable at that time. If several of these drives are installed and operated together in a RAID, they are going to fail almost simultaneously. Patch or assume the risk of failure, says Hewlett Packard Enterprise.

Massachusetts State Police (MSP) has been quietly testing ways to use the four-legged Boston Dynamics robot known as Spot, according to new documents obtained by the American Civil Liberties Union of Massachusetts. And while Spot isn't equipped with a weapon just yet, the documents provide a terrifying peek at our RoboCop future. Gizmodo reports: The Spot robot, which was officially made available for lease to businesses last month, has been in use by MSP since at least April 2019 and has engaged in at least two police "incidents," though it's not clear what those incidents may have been. It's also not clear whether the robots were being operated by a human controller or how much autonomous action the robots are allowed. MSP did not respond to Gizmodo's emails on Monday morning.

The newly obtained documents, first reported by Ally Jarmanning at WBUR in Boston, include emails and contracts that shed some light on how police departments of the future may use robots to engage suspects without putting human police in harm's way. In one document written by Lt. Robert G. Schumaker robots are described as an "invaluable component of tactical operations" that are vital to support the state's "Homeland Security Strategy." [...] The question that remains is whether the American public will simply accept robocops as our reality now. Unfortunately, it seems like we may not have any choice in the matter -- especially when the only way that we can learn about this new robot-police partnership is through records requests by the ACLU. And even then, we're still largely in the dark about how these things will be used.