Inside the Rise and Fall of Clubhouse, a Pandemic Poster Child of VC-backed Hype

From a report: In May 2020, when the pandemic raged, the comedian and TV writer Marlena Rodriguez got an invite to a new app called Clubhouse that offered the homebound online masses a way to spend some of their suddenly abundant time. In the ensuing months, Rodriguez jousted in a chat room with the celebrity Ashton Kutcher, gained more than 13,000 followers, and started a party room on Fridays that frequently swelled to over 1,000 people. She wrote a play, “Once Upon a Clubhouse,” and hired actors to perform it on the app. “I was in love,” she said. Today, “I question why I’m even still on Clubhouse,” Rodriguez said. Her Friday-night room has dwindled to about 30 people.

More than any other startup, Clubhouse epitomizes the venture-capital-backed euphoria that swept the tech industry since lockdowns shut millions of people inside and pushed them online for connection, entertainment, and information. Marc Andreessen has called the app “the Athenian agora come to life,” referring to the hub of democracy in ancient Greece. It has raised more than $100m from his firm and other top VCs, garnering a $4bn valuation. But with vaccinations rising and more people returning to normal life, Clubhouse has been hit particularly hard. Daily downloads of the app have plunged more than 90% since a peak in June, while daily average users are down almost 80% since February, Apptopia data indicated. Insider interviews with creators, advertisers, VCs, and others in the tech industry show a platform struggling to build an audience and keep it. Moneymaking opportunities are also slim, which makes the app a tough sell for creators and users as there are many other options online and off.

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California Moves To Recommend Delaying Algebra To 9th Grade Statewide

California is in the process of approving new guidelines for math education in public schools that “pushes Algebra 1 back to 9th grade, de-emphasizes calculus, and applies social justice principles to math lessons,” writes Joe Hong via the San Francisco Standard. The new approach would have been approved earlier this month but has been delayed due to the attention and controversy it has received. Here’s an excerpt from the report: When Rebecca Pariso agreed to join a team of educators tasked in late 2019 with California’s new mathematics framework, she said she expected some controversy. But she didn’t expect her work would be in the national spotlight. […] Every eight years (PDF), a group of educators comes together to update the state’s math curriculum framework. This particular update has attracted extra attention, and controversy, because of perceived changes it makes to how “gifted” students progress — and because it pushes Algebra 1 back to 9th grade, de-emphasizes calculus, and applies social justice principles to math lessons. San Francisco pioneered key aspects of the new approach, opting in 2014 to delay algebra instruction until 9th grade and to push advanced mathematics courses until at least after 10th grade as a means of promoting equity.

San Francisco Unified School District touted the effort as a success, asserting that algebra failure rates fell and the number of students taking advanced math rose as a result of the change. The California Department of Education cited those results in drafting the statewide framework. But critics have accused the district of using cherry-picked and misleading assertions to bolster the case for the changes. The intent of the state mathematics framework, its designers say, is to maintain rigor while also helping remedy California’s achievement gaps for Black, Latino and low-income students, which remain some of the largest in the nation. At the heart of the wrangling lies a broad agreement about at least one thing: The way California public schools teach math isn’t working. On national standardized tests, California ranks in the bottom quartile among all states and U.S. territories for 8th grade math scores.

Yet for all the sound and fury, the proposed framework, about 800-pages long, is little more than a set of suggestions. Its designers are revising it now and will subject it to 60 more days of public review. Once it’s approved in July, districts may adopt as much or as little of the framework as they choose — and can disregard it completely without any penalty. “It’s not mandated that you use the framework,” said framework team member Dianne Wilson, a program specialist at Elk Grove Unified. “There’s a concern that it will be implemented unequally.”

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New Windows Zero-Day With Public Exploit Lets You Become An Admin

A security researcher has publicly disclosed an exploit for a new Windows zero-day local privilege elevation vulnerability that gives admin privileges in Windows 10, Windows 11, and Windows Server. BleepingComputer reports: As part of the November 2021 Patch Tuesday, Microsoft fixed a ‘Windows Installer Elevation of Privilege Vulnerability’ vulnerability tracked as CVE-2021-41379. This vulnerability was discovered by security researcher Abdelhamid Naceri, who found a bypass to the patch and a more powerful new zero-day privilege elevation vulnerability after examining Microsoft’s fix. Yesterday, Naceri published a working proof-of-concept exploit for the new zero-day on GitHub, explaining that it works on all supported versions of Windows.

“This variant was discovered during the analysis of CVE-2021-41379 patch. the bug was not fixed correctly, however, instead of dropping the bypass,” explains Naceri in his writeup. “I have chosen to actually drop this variant as it is more powerful than the original one.” Furthermore, Naceri explained that while it is possible to configure group policies to prevent ‘Standard’ users from performing MSI installer operations, his zero-day bypasses this policy and will work anyway. BleepingComputer tested Naceri’s ‘InstallerFileTakeOver’ exploit, and it only took a few seconds to gain SYSTEM privileges from a test account with ‘Standard’ privileges, as demonstrated in [this video]. When BleepingComputer asked Naceri why he publicly disclosed the zero-day vulnerability, we were told he did it out of frustration over Microsoft’s decreasing payouts in their bug bounty program. A Microsoft spokesperson said in a statement: “We are aware of the disclosure and will do what is necessary to keep our customers safe and protected. An attacker using the methods described must already have access and the ability to run code on a target victim’s machine.”

Naceri recommends users wait for Microsoft to release a security patch, as attempting to patch the binary will likely break the installer.

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Rolls-Royce’s All-Electric Airplane Reached a Record 387.4 MPH Top Speed

Rolls-Royce has announced that its all-electric plane, dubbed the “Spirit of Innovation,” is the fastest of its kind in the world after it reached a maximum speed of 387.4 mph (623 k/h) in recent flight tests. Gizmodo reports: In a recent news release, the company, not to be mistaken for the car company owned by BMW, claimed that the Spirit of Innovation set three new world records earlier this week. On flight tests carried out on Nov. 16, Rolls-Royce said its aircraft reached a top speed of 345.4 mph (555.9 km/h) over 1.8 miles (3 kilometers), exceeding the current record by 132 mph (213 k/h). It broke another record in a subsequent 9.3-mile (15 kilometer) flight, during which it reached 330 mph (532.1 km/h), surpassing the current record by 182 mph (292.8 km/h).

The Spirit of Innovation didn’t stop there, though. Rolls-Royce affirms that it smashed another record when it reached 9,842.5 feet (3,000 meters) in 202 seconds, beating the current record by 60 seconds. In the company’s view, it also took the title of the world’s fastest all-electric vehicle when it reached a maximum speed of 387.4 mph (623 km/h) during its flight tests. The company’s aircraft is powered by a 400kW electric powertrain and “the most power-dense propulsion battery pack ever assembled in aerospace.” “Following the world’s focus on the need for action at COP26, this is another milestone that will help make ‘jet zero’ a reality and supports our ambitions to deliver the technology breakthroughs society needs to decarbonize transport across air, land and sea,” CEO Warren East said in the news release.

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Intel’s Expensive New Plan to Upgrade Its Chip Technology – and US Manufacturing

America’s push to manufacturer more products domestically gets an in-depth look from CNET — including a new Intel chip factory outside of Phoenix.

CNET calls it a fork in the road “after squandering its lead because of a half decade of problems modernizing its manufacturing…”

With “a decade of bad decisions, this doesn’t get fixed overnight,” says Pat Gelsinger, Intel’s new chief executive, in an interview. “But the bottom is behind us and the slope is starting to feel increasingly strong….” More fabs are on the way, too. In an enormous empty patch of dirt at its existing Arizona site, Intel has just begun building fabs 52 and 62 at a total cost of $20 billion, set to make Intel’s most advanced chips, starting in 2024. Later this year, it hopes to announce the U.S. location for its third major manufacturing complex, a 1,000-acre site costing about $100 billion. The spending commitment makes this year’s $3.5 billion upgrade to its New Mexico fab look cheap. The goal is to restore the U.S. share of chip manufacturing, which has slid from 37% in 1990 to 12% today. “Over the decade in front of us, we should be striving to bring the U.S. to 30% of worldwide semiconductor manufacturing,” Gelsinger says…

But returning Intel to its glory days — and anchoring a resurgent U.S. electronics business in the process — is much easier said than done. Making chips profitably means running fabs at maximum capacity to pay off the gargantuan investments required to stay at the leading edge. A company that can’t keep pace gets squeezed out, like IBM in 2014 or Global Foundries in 2018. To catch up after its delays, Intel now plans to upgrade its manufacturing five times in the next four years, a breakneck pace by industry standards. “This new roadmap that they announced is really aggressive,” says Linley Group analyst Linley Gwennap. “I don’t have any idea how they are going to accomplish all of that….”

Gelsinger has a tech-first recovery plan. He’s pledged to accelerate manufacturing upgrades to match the technology of TSMC and Samsung by 2024 and surpass them in 2025. He’s opening Intel’s fabs to other companies that need chips built through its new Intel Foundry Services (IFS). And he’s relying on other foundries, including TSMC, for about a quarter of Intel’s near-term chipmaking needs to keep its chips more competitive during the upgrades. This three-pronged strategy is called IDM (integrated design and manufacturing) 2.0. That’s a new take on Intel’s philosophy of both designing and making chips. It’s more ambitious than the future some had expected, in which Intel would sell its factories and join the ranks of “fabless” chip designers like Nvidia, AMD and Qualcomm that rely on others for manufacturing…

Shareholders may not like Gelsinger’s spending-heavy strategy, but one community really does: Intel’s engineers… Gelsigner told the board that Intel is done with stock buybacks, a financial move in which a company uses its cash to buy stock and thereby increase its price. “We’re investing in factories,” he told me. “That’s going to be the use of our cash….”

“We cannot recall the last time Intel put so many stakes in the ground,” said BMO Capital Markets analyst Ambrish Srivastava in a July research report after Intel announced its schedule.

Intel will even outpace Moore’s law, Gelsinger tells CNET — more than doubling the transistor count on processors every two years. “I believe that you’re going to see from 2025 to 2035 a very healthy period for Moore’s Law-like behavior.”

Although that still brings some risk to Intel’s investments if they have to pass the costs on to customer, a Linley Group analyst points out to CNET. “Moore’s Law is not going to end when we can’t build smaller transistors. It’s going to end when somebody says I don’t want to pay for smaller transistors.”

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