An anonymous reader quotes a report from Ars Technica: If you've only ever used standard Qi chargers with devices that don't have their own schemes, the Wireless Power Consortium's announcement today of the first Qi 2.0 devices being ready to launch before the holidays, with more than 100 in the queue behind them, is great. Qi2 sports a "Magnetic Power Profile" (MPP), created with help by Apple's MagSafe team, to help align devices and chargers' coils for faster, more efficient charging. Qi2-certified devices set onto Qi2 chargers can achieve 15 W charging, up from 7.5 W in the standard Qi scheme.

That brings Qi2 devices up to the same speed as iPhones on MagSafe chargers, and it clears up some consumer confusion about how fast a device might charge on Qi, MagSafe, or proprietary chargers. Should a phone and charger be Qi2 certified, you can now expect about 15 W out of it, regardless of whatever Google, Apple, or third party is behind them. Android and iPhone users alike are no longer beholden to their primary hardware vendor if they want 15 W of wireless juice. This announcement does not, however, bring the Qi2 standard close to the far-out speeds that proprietary setups now offer. [...]

A number of accessory makers, including stalwarts Anker and Belkin, had already lined up their Qi2-compatible offerings, waiting for the certification to drop. It will be interesting to see if Qi2 brings a wave of magnet mania to Android phones, akin to the MagSafe-induced blitz a few years back. Magnetic charging packs, wallets, wireless charging for a non-wireless-charging phone -- there's a lot to work with, especially at now somewhat more respectable charging speeds. Regarding speed, the WPC told Android Authority back in January that the Qi2 standards group intends to standardize charging speeds above 15 W by mid-2024. If you need a fast charge, plugging in the right cable to a well-powered source is still the most certain route. But with magnetic alignment and a good deal more universal compatibility, Qi2 drags the broader wireless charging market forward.

Tencent dismissed concerns that US export controls will constrain its AI development capabilities, at least for the foreseeable future. From a report: The Shenzhen-based company has stockpiled Nvidia's H800 artificial intelligence accelerators, enough to develop its proprietary Hunyuan AI model for at least another couple of generations, President Martin Lau said on an analyst call after earnings on Wednesday. "Right now we actually have one of the largest inventories of AI chips in China among all the players," Lau said. "We were the first to put in orders for H800 and that allows us to have a pretty good inventory of H800 chips. So we have enough chips to continue our development."

The Biden administration in October escalated export controls on AI semiconductors heading to China, depriving the Asian nation from access to a broad range of the world's best AI-training hardware. The purpose of the measures is to prevent China's military from obtaining the advanced technology, Washington argues, but they're also making business harder for the country's private sector. Elsewhere in China, AI industry veteran Kai-Fu Lee's unicorn startup 01.AI has been buying up the Nvidia chips it needs to develop its own foundation models, with Lee saying the company has enough semiconductors for the next 18 months.

An anonymous reader quotes a report from Ars Technica: Intel on Tuesday pushed microcode updates to fix a high-severity CPU bug that has the potential to be maliciously exploited against cloud-based hosts. The flaw, affecting virtually all modern Intel CPUs, causes them to "enter a glitch state where the normal rules don't apply," Tavis Ormandy, one of several security researchers inside Google who discovered the bug, reported. Once triggered, the glitch state results in unexpected and potentially serious behavior, most notably system crashes that occur even when untrusted code is executed within a guest account of a virtual machine, which, under most cloud security models, is assumed to be safe from such faults. Escalation of privileges is also a possibility.

The bug, tracked under the common name Reptar and the designation CVE-2023-23583, is related to how affected CPUs manage prefixes, which change the behavior of instructions sent by running software. Intel x64 decoding generally allows redundant prefixes -- meaning those that don't make sense in a given context -- to be ignored without consequence. During testing in August, Ormandy noticed that the REX prefix was generating "unexpected results" when running on Intel CPUs that support a newer feature known as fast short repeat move, which was introduced in the Ice Lake architecture to fix microcoding bottlenecks. The unexpected behavior occurred when adding the redundant rex.r prefixes to the FSRM-optimized rep mov operation. [...]

Intel's official bulletin lists two classes of affected products: those that were already fixed and those that are fixed using microcode updates released Tuesday. An exhaustive list of affected CPUs is available here. As usual, the microcode updates will be available from device or motherboard manufacturers. While individuals aren't likely to face any immediate threat from this vulnerability, they should check with the manufacturer for a fix. People with expertise in x86 instruction and decoding should read Ormandy's post in its entirety. For everyone else, the most important takeaway is this: "However, we simply don't know if we can control the corruption precisely enough to achieve privilege escalation." That means it's not possible for people outside of Intel to know the true extent of the vulnerability severity. That said, anytime code running inside a virtual machine can crash the hypervisor the VM runs on, cloud providers like Google, Microsoft, Amazon, and others are going to immediately take notice.

According to the Korea Herald, Apple is expected to begin production of OLED displays for its next-gen iPad Pro in February 2024. MacRumors reports: Sources familiar with the matter speaking to the Korea Herald claim that LG Display is set to initiate OLED production for the new iPad Pro as early as February next year at their facility in Paju, Gyeonggi Province -- a time frame around three months sooner than previously expected. The displays are expected to be three times the price of those used in iPhones, which could translate to higher prices for customers. [...] Apple is reportedly seeking around 10 million OLED panels for the iPad in 2024. LG is expected to supply around 60% of the OLED panels, with the remaining portion supplied by Samsung, which is expected to focus on the 11-inch model only. Production of the panels for the next-generation iPad Pro is expected to help LG Displays' financial recovery next year. LG and Samsung are said to be currently finalizing price negotiations with Apple.

Anton Shilov reports via Tom's Hardware: A new report from a data recovery company now points the finger at design and manufacturing flaws as the underlying issue with the recent flood of SanDisk Extreme Pro failures that eventually spurred a class action lawsuit. It became clear in May that some of Western Digital's SanDisk Extreme Pro 4TB SSDs suffered from sudden data loss; at this point, the company promised a firmware update to owners of the 4TB models. However, the 2TB and 3TB models also suffer from the same issue, and Western Digital did not promise any firmware updates for these drives.

Markus Hafele, Managing Director of Attingo, a data recovery company, told FutureZone that the problem lies in hardware, not firmware, which could explain the lack of corrective firmware updates for those models and SanDisk's continued silence about the source of the issues. Attingo, which has been in the data recovery business for over 25 years, normally sees these failed SanDisk Extreme Pro SSDs at least once a week. The problem appears to be rather complex. According to HÃfele, the components used in these SSDs are too big for the circuit board, causing weak connections (i.e., high impendence and high temperatures) and making them prone to breaking. He also says that the soldering material used to attach these components is prone to forming bubbles and breaking easily.

It remains unknown whether the cause is cheap solder, the componentry, or both contribute to the issues observed. However, newer revisions of these SanDisk Extreme Pro SSDs seem to have been modified with extra epoxy resin to secure the oversized components. This suggests that Western Digital might know about the hardware problems. Nevertheless, these newer models are still failing, thus sending data recovery service customers to firms like Attingo. According to the head of Attingo, the issue seems to be affecting multiple product lineups, including both SanDisk Extreme Portable SSD as well as the SanDisk Extreme Pro Portable SSD.

Nvidia, the world's most valuable chipmaker, is updating its H100 artificial intelligence processor, adding more capabilities to a product that has fueled its dominance in the AI computing market. From a report: The new model, called the H200, will get the ability to use high-bandwidth memory, or HBM3e, allowing it to better cope with the large data sets needed for developing and implementing AI, Nvidia said Monday. Amazon's AWS, Alphabet's Google Cloud and Oracle's Cloud Infrastructure have all committed to using the new chip starting next year.

The current version of the Nvidia processor -- known as an AI accelerator -- is already in famously high demand. It's a prized commodity among technology heavyweights like Larry Ellison and Elon Musk, who boast about their ability to get their hands on the chip. But the product is facing more competition: AMD is bringing its rival MI300 chip to market in the fourth quarter, and Intel claims that its Gaudi 2 model is faster than the H100. With the new product, Nvidia is trying to keep up with the size of data sets used to create AI models and services, it said. Adding the enhanced memory capability will make the H200 much faster at bombarding software with data -- a process that trains AI to perform tasks such as recognizing images and speech.

MacRumors writes that the second beta of iOS 17.2 "adds a new feature that allows an iPhone 15 Pro or iPhone 15 Pro Max to record Spatial Video" — that is, in the immersive 3D format for the yet-to-be-released Apple Vision Pro (where it can be viewed in the "Photos" app): Spatial Video recording can be enabled by going to the Settings app, tapping into the Camera section, selecting Formats, and toggling on "Spatial Video for Apple Vision Pro..." Spatial Videos taken with an iPhone 15 Pro can be viewed on the iPhone as well, but the video appears to be a normal video and not a Spatial Video.
Tech blogger John Gruber got to test the technology, watching the videos on a (still yet-to-be-released) Vision Pro headset. "I'm blown away once again," he wrote, calling the experience "astonishing."

"Before my demo, I provided Apple with my eyeglasses prescription, and the Vision Pro headset I used had appropriate corrective lenses in place. As with my demo back in June, everything I saw through the headset looked incredibly sharp..." The Vision Pro experience is highly dependent upon foveated rendering, which Wikipedia succinctly describes as "a rendering technique which uses an eye tracker integrated with a virtual reality headset to reduce the rendering workload by greatly reducing the image quality in the peripheral vision (outside of the zone gazed by the fovea)..." It's just incredible, though, how detailed and high resolution the overall effect is...

Plain old still photos look amazing. You can resize the virtual window in which you're viewing photos to as large as you can practically desire. It's not merely like having a 20-foot display — a size far more akin to that of a movie theater screen than a television. It's like having a 20-foot display with retina quality resolution, and the best brightness and clarity of any display you've ever used... And then there are panoramic photos... Panoramic photos viewed using Vision Pro are breathtaking. There is no optical distortion at all, no fish-eye look. It just looks like you're standing at the place where the panoramic photo was taken — and the wider the panoramic view at capture, the more compelling the playback experience is. It's incredible...

As a basic rule, going forward, I plan to capture spatial videos of people, especially my family and dearest friends, and panoramic photos of places I visit. It's like teleportation... When you watch regular (non-spatial) videos using Vision Pro, or view regular still photography, the image appears in a crisply defined window in front of you. Spatial videos don't appear like that at all. I can't describe it any better today than I did in June: it's like watching — and listening to — a dream, through a hazy-bordered portal opened into another world...

Nothing you've ever viewed on a screen, however, can prepare you for the experience of watching these spatial videos, especially the ones you will have shot yourself, of your own family and friends. They truly are more like memories than videos... [T]he ones I shot myself were more compelling, and took my breath away... Prepare to be moved, emotionally, when you experience this.

A a report from TechSpot says AMD has recently increased its market share in the CPU sector for desktops, laptops, and servers: According to Mercury Research (via Tom's Hardware), AMD gained 5.8% unit share in desktops, 3.8% in laptops, and 5.8% in servers. In terms of revenue share, Team Red gained 4.1% in desktops, 5.1% in laptops, and 1.7% in servers. The report does not mention competitors by name, but the global PC industry only has one other major CPU supplier, Intel, which has a major stake in all the market segments.

While Intel and AMD make x86 processors for PCs, Qualcomm offers Arm-based SoCs for Windows notebooks, but its market share is minuscule by comparison. So, while the report doesn't say anything about the market share of Intel or Qualcomm, it is fair to assume that most of AMD's gains came at Intel's expense.
Thanks to Slashdot reader jjslash for sharing the news.

According to Nikkei Asia (paywalled), Indonesia has officially launched Southeast Asia's largest floating solar plant. It covers an area of over 250 hectares (2.5 km^2) and should be able to produce enough renewable energy to power 50,000 homes. Interesting Engineering reports: "Today is a historical day because our big dream of building a large-scale renewable energy plant is finally achieved. We managed to build the largest floating solar plant in Southeast Asia, and the third biggest in the world," Widodo is reported to have said at the opening ceremony. "The Cirata floating solar panel is the largest floating solar panel in Southeast Asia, and also the third largest in the world," he added.

China's PowerChina Huadong Engineering Corporation Limited constructed the power plant with Indonesia's state electricity corporation PLN and the United Arab Emirates energy company Masdar. The project had an investment of $145 million. More than 340,000 solar panels cover the reservoir surface, generating 192 MW of electricity annually, complementing existing hydropower at the site. The project had experienced significant delays before construction finally commenced in December 2020. [...]

PLN and Masdar are discussing plans to expand the facility and increase its power generation capacity to 500 MW. The plant occupies only 4% of the dam's reservoir surface, and according to the Indonesian government, solar panels can occupy up to 20% of the surface of a lake or dam, making it an efficient use of space.

Press2ToContinue writes: 01.AI, a Chinese AI startup, has stockpiled enough Nvidia AI and HPC GPUs to last 18 months, in anticipation of a U.S. export ban. Looks like 01.AI is taking "goo big or go home" to a new level with their GPU shopping spree. They're basically the dragon from "The Hobbit," but instead of gold, they're hoarding Nvidia chips. Maybe they're planning the ultimate LAN party or just really into extreme Minecraft graphics. Either way, it's like they say: "In the land of tech embargoes, the one with the secret GPU stash is king." Or in this case, playing 4D chess while the rest of us are stuck figuring out which port the HDMI cable goes into. "We have stockpiled a lot of Nvidia chips," said 01.AI founder Kai-Fu Lee in an interview with Bloomberg. "The jury is out on whether China in 1.5 years can make equivalent or nearly as good chips."

"We will have two parallel universes. Americans will supply their products and technologies to the U.S. and other countries and Chinese companies will build for China and whoever else uses Chinese products. The reality is that they will not compete very much in the same marketplace."

Long-time Slashdot reader AmiMoJo writes: [O]n Wednesday, the company and utility planning to build the first small, modular nuclear plant in the U.S. announced it was cancelling the project. The U.S. has approved a single design for a small, modular nuclear reactor developed by the company NuScale Power. The government's Idaho National Lab was working to help construct the first NuScale installation, the Carbon Free Power Project. Under the plan, the national lab would maintain a few of the first reactors at the site, and a number of nearby utilities would purchase power from the remaining ones.

With the price of renewables dropping precipitously, however, the project's economics have worsened, and backers started pulling out of the project. The final straw came on Wednesday, when NuScale and the primary utility partner, Utah Associated Municipal Power Systems, announced that the Carbon Free Power Project no longer had enough additional utility partners, so it was being cancelled. In a statement, the pair accepted that "it appears unlikely that the project will have enough subscription to continue toward deployment."

The Illinois Senate has approved a plan to allow small modular reactors in the state, lifting a 36-year-old moratorium on new nuclear power installments. Proponents say the plan will ensure the state can meet its carbon-free power production promise by 2045. The Associated Press reports: Environmentalists have criticized the plan, noting that small modular reactors are a decade or more from viability. Sponsoring Sen. Sue Rezin, a Republican from Morris, said that's the reason, coupled with a federal permitting process of as much as eight years, her legislation is timely. "If we want to take advantage of the amazing advancements in new nuclear technology that have occurred over the past couple of decades and not fall behind the rest of the states, we need to act now," Rezin said.

The House has through Thursday -- the scheduled adjournment of the General Assembly's fall session -- to OK the proposal and send it to Gov. J.B. Pritzker. Under the legislation, Illinois would allow development of small modular reactors in January 2026. That's when a report on necessary safety measures and updated guidelines would be due. The plan also tasks the Illinois Emergency Management Agency with oversight of newly installed reactors. Rezin added that layer of inspection, despite her contention that strict federal control is sufficient, to appease a concerned Pritzker. The Democrat cited the issue as one that caused him to side with environmentalists and veto initial legislation Rezin saw approved overwhelmingly last spring.

Velcroman1 writes: Overclocking master Allen 'Splave' Golibersuch surfaced on Tom's Hardware to detail his work with liquid nitrogen to set a slew of new world records with Intel's Raptor Lake Refresh" CPUs. They include 15 world records with the Core i7-14700K and eight records with the Core i5-14600K, along with four records with the Core i9-14900K, spanning benchmarks from Cinebench to wPrime and H265.

"My top speeds were 7,730.11 MHz on all cores on the 14900K, 7,859.05 MHz on the 14600K and 7,600 MHz on the 14700K," writes Splave. "All of these achieved in Cinebench R23 while using Liquid Nitrogen cooling." "At the end of a week of playing around, I broke the 8-core Cinebench record at a crazy 7.73 GHz on all cores," concludes Splave. "Overall, these CPUs potentially OC better than their predecessors and cost the same. It was a rather refreshing refresh, I would say."

A robot in a South Korea distribution center crushed a man to death after the machine apparently failed to differentiate him from the boxes of produce it was handling. The Guardian reports: The man, a robotics company worker in his 40s, was inspecting the robot's sensor operations at a distribution centre for agricultural produce in South Gyeongsang province. The industrial robot, which was lifting boxes filled with bell peppers and placing them on a pallet, appears to have malfunctioned and identified the man as a box, Yonhap reported, citing the police. The robotic arm pushed the man's upper body down against the conveyor belt, crushing his face and chest, according to Yonhap. He was transferred to the hospital but died later, the report said. The BBC notes that the man was "checking the robot's sensor operations ahead of its test run [...] scheduled for November 8." It was originally planned for November 6th, "but was pushed back by two days due to problems with the robot's sensor," the report adds.

U.S. chip group Intel is on track to deliver five upgrades to its advanced manufacturing process in four years, CEO Pat Gelsinger said on Tuesday as the company faces pressure to reassure PC and server-making clients that its technology will remain competitive. From a report: Speaking at Intel Innovation Day in Taipei, Gelsinger said the company's most advanced chip design, the 18A, will move into the test production phase by the first quarter of 2024. "For 18A, we have many test wafers coming out at this moment," the CEO said. "The invention phase of the 18A is now complete, and now we're racing to production."

This production node represents Intel's big bet to reclaim semiconductor manufacturing leadership by 2025. The company also announced it will use this production technology to make chips for outside customers such as Ericsson, instead of using it only for its own products. Its two biggest rivals, Samsung of South Korea and Taiwan Semiconductor Manufacturing Co., are racing to put their own most advanced chips into production in 2025. These 2-nanometer chips are seen as being at a similar level as Intel's 18A. Gelsinger said his company has been aggressively pursuing its "five nodes in four years" plan since he returned to the company in 2021. It usually takes at least two years for a chipmaker to move forward to a new production node.

Tech YouTuber Dave Lee provided a hands-on first look at the new PlayStation 5 "slim" and gave a preview of how it looks compared to the original 2020 launch versions. Kotaku reports: One of his biggest takeaways is that the console, while lighter, doesn't necessarily feel that much smaller in contrast to initial predictions. Maybe that's why Sony's not officially marketing the new device as a "slim" version. From there, Lee runs through some of the less obvious changes. A few we already knew about like the USB-a slot on the front being replaced by two USB-c ports, as well as the t side panels split into two pieces to accommodate the new detachable disc drive. Lee actually showed how the disc drive comes out, and it looks really simple and convenient. There's no screws involved. Instead, putting pressure on a tab releases it from the housing while a socket near the bottom is how it plugs into the rest of the console.

Less neat are the new see-thru plastic pegs that stabilize the console when it's laid horizontal. While they've been added to help secure the PS5 given its new detachable disc drive design, Lee was unimpressed. I kind of agree. They're not a very elegant solution. The same goes for the divided panels themselves. I didn't realize this before, but they actually have different finishes. The bottom is a matte white that's a little different from the current PS5 plates and the top has a glossy finish.

Inside the new PS5, Lee pointed out a handful of differences. The top heat exhaust is less stylized, with plain vents instead of a snail shell like spiral. The internal SSD unit layout is also different. That's the piece that powers the PS5's lighting-quick load speeds, and it's not yet clear if the new design will impact performance at all. Lee's initial testing showed there was no real difference. It will also be interesting to see how the new PS5s deal with heat given its the same CPU running in a smaller layout.

Canon plans to price its new chipmaking gear at a fraction of the cost of ASML Holding NV's best lithography machines, seeking to make inroads in the cutting-edge equipment now playing a central role in the US-China tech rivalry. From a report: The Tokyo-based company's new nanoimprint technology would open up a way for smaller semiconductor makers to produce advanced chips, now almost wholly the domain of the sector's biggest firms, Chief Executive Officer Fujio Mitarai said. "The price will have one digit less than ASML's EUVs," said the 88-year-old, now on his third stint as Canon's president after last stepping back from day-to-day operations in 2016. He added that a final pricing decision hasn't been made.

Veldhoven, Netherlands-based ASML is the only supplier of extreme ultraviolet lithography tools, the world's most advanced chipmaking machines costing hundreds of millions of dollars each. The product of decades of research and investment, EUV rigs are essential for mass-producing the fastest and most energy-efficient chips, which cram millions of transistors into every square millimeter of silicon. Only a handful of cash-rich companies can afford to invest in the tools, which are now under scrutiny for their linchpin status in the tech supply chain. ASML is banned from exporting EUV systems to Chinese customers, following US pressure on its allies to restrict technology flows to Beijing.

The state of Maine is "poised to vote on an unprecedented plan to rid themselves of the state's two largest electric utilities and start with a clean slate," reports the Associated Press: The proposed takeover of two investor-owned utilities that distribute 97% of electricity in the state would mark the first time a U.S. state's utilities were forcibly removed at the same time. The referendum calls for dismantling Central Maine Power and Versant Power and replacing them with a nonprofit utility called Pine Tree Power to operate 28,000 miles (45,000 kilometers) of transmission lines...

The referendum calls for creation of a nonprofit utility with a board made up of mostly elected members and a few appointed ones. A primary selling point is that the new utility would be beholden only to ratepayers, not corporate shareholders, allowing lower costs, greater investments in the grid and improved performance, supporters said. Interest rates for long-term borrowing for capital improvements also would be less costly for Pine Tree Power. Supporters say there's little to lose: Both investor-owned utilities rank near the bottom in customer satisfaction, with longer-than-average response to power outages and higher-than-average electricity rates.

But critics, including Democratic Gov. Janet Mills, worry about the power grid becoming politicized. They also question savings projections because of the billions of dollars needed to buy out the utilities, and worry about the prospect of lengthy litigation. Maine Public Advocate William Harwood contends legal disputes could postpone the new utility's implementation by five to 10 years.
The American Public Power Association estimates that investor-owned utilities serve 66% of America's electricity consumers, according to the article. So the Associated Press notes that "Across the country, ratepayers who are unhappy with their utilities are watching what happens," citing this quote from energy-related research firm Clear View Energy Partners.

"What we say about state policy and trends is that it could become contagious."

Thanks to Slashdot reader jenningsthecat for sharing the article.

Smartphones and electric cars are both powered by lithium-ion batteries, notes the Economist. These "Li-ion" batteries "form the guts of a growing number of grid-storage systems that smooth the flow of electricity from wind and solar power stations. Without them, the electrification needed to avoid the worst effects of global warming would be unimaginable." But unfortunately, building them requires scarce metals.

"A clutch of companies, though, think they have an alternative: making batteries with sodium instead..." And the idea of building "Na-ion" batteries at scale is "gaining traction." Engineers are tweaking designs. Factories, particularly in China, are springing up. For the first time since the Li-ion revolution began, lithium's place on the electrochemical pedestal is being challenged... [A]ccording to Rory McNulty, a research analyst at Benchmark, Chinese firms have 34 Na-ion-battery factories built, being built or announced inside the country, and one planned in Malaysia. Established battery-makers in other places, by contrast, are not yet showing much interest. Even without a five-year plan to guide them, though, some non-Chinese startups are seeking to steal a march by developing alternatives to layered oxides, in the hope of improving the technology, reducing its cost, or both.

One of the most intriguing of these neophytes is Natron Energy, of Santa Clara, California... Natron claims that its cells can endure 50,000 cycles of charging and discharging — between ten and 100 times more than commercial Li-ion batteries can manage. The firm has built a factory in Michigan, which it says will begin production later this year. Other non-Chinese firms are less far advanced, but full of hope. Altris, in Sweden, which is also building a factory, employs a material called Prussian white that substitutes some of the iron in Prussian blue with sodium. Tiamat, in France, uses a polyanionic design involving vanadium. And Faradion, in Britain (now owned by Reliance, an Indian firm), intends to stick with a layered-metal-oxide system.
Thanks to Slashdot reader echo123 for sharing the article.

Bill Gates, noted billionaire philanthropist, discussed the need for "impatient optimism" about both climate change and global development last month during an interview at an international affairs think tank: Q: If you go back a decade, are you more or less optimistic about where we are on climate change now, or then?

Bill Gates: I'm certainly more optimistic because in 2015, when the Paris Agreement was signed, there were so many areas of emission where there wasn't any activity...

Q: if you go back a decade, solar and wind were the most expensive energy sources we had. Since then, the price of solar has dropped 90%, and the price of wind has dropped 70%, and electric vehicles are now economically viable... I know you get excited about innovation. What are some of the areas that you're most excited about for innovation?

Bill Gates: Across this portfolio of 100 companies it's hard to pick my favorite. Some are kind of straightforward, like a company that makes windows where the temperature doesn't cross over, but instead, it blocks getting cold in the winter or hot in the summer, which is very cheap. Or there is a company where you leave your home, and you pump this air through, but it's got a chemical in it. When it sees cracks, it actually seals those cracks. You don't have to find the cracks; you just pump the air in. You can reduce the amount of heat loss between the windows and getting rid of those cracks. You can reduce the energy bill by a factor of two, which then means less load on the overall energy system...

The cement and steel ones are the ones, in a way, I'm most impressed by, because I wasn't sure we'd find anything in those spaces...

Q: The problem, I guess, with cement is that you are taking basically limestone, and then you are converting it to calcium oxide. But the byproduct you get in that conversion process is CO2. Basically, you need a way to capture that CO2....

Bill Gates: As you heat the limestone, that releases CO2. It's exactly as you say, it's an equal number amount of emissions. One of our companies doesn't use limestone. They actually go and find another source of calcium, which fortunately turns out to be quite abundant and cheap. They make exactly the same cement that we make today, but not using limestone as the input. I was stunned that you could do that.
Gates also hopes to see nuclear power in an economically viable form. "The nuclear industry basically failed, because their product was too expensive. It wasn't because of the waste or safety-type issues, which we can get into those, but it was economics." Bill Gates: First and foremost, you must have a much different economic proposition. The nuclear reactor I'm involved in, TerraPower, we only generate electricity when the renewable sources that have very little marginal costs aren't generating. We just make heat all day, and then only when the bid price of electricity is high enough, do we actually generate electricity, because otherwise, you have all this capital cost that half the time, the solar bid into that market is going to be very low.

I think fission, we shouldn't give up on it. I'm involved in that company only because it may be able to make a significant contribution to [fighting] climate change... I can't overstate how much easier it is to solve the problem if you can mix in some degree of fission or fusion that are there to fill in the periods where renewables are not generating. Cold snaps or where you have these cold fronts just sitting there, that's when houses need the most heating. That's when neither wind nor solar are generating.