Month: March 2024

Enlarge (credit: Nathan Devery)

Cellulose is the primary component of the cell walls of plants, making it the most common polymer on Earth. It's responsible for the properties of materials like wood and cotton and is the primary component of dietary fiber, so it's hard to overstate its importance to humanity.

Given its ubiquity and the fact that it's composed of a bunch of sugar molecules linked together, its toughness makes it very difficult to use as a food source. The animals that manage to extract significant calories from cellulose typically do so via specialized digestive tracts that provide a home for symbiotic bacteria—think of the extra stomachs of cows and other ruminants.

Amazingly, humans also play host to bacteria that can break down cellulose—something that wasn't confirmed until 2003 (long after I'd wrapped up my education). Now, a new study indicates that we're host to a mix of cellulose-eating bacteria, some via our primate ancestry, and others through our domestication of herbivores such as cows. But urban living has caused the number of these bacteria to shrink dramatically.

Enlarge (credit: Intel)

PC enthusiasts who have been around the block a couple of times might remember the stretch from the '90s into the early 2000s when ever-increasing clock speeds were Intel's primary metric for increasing processor performance. AMD participated, too—it managed to beat Intel to 1 GHz in what was considered a major coup at the time—but Intel's Pentium 4 processors specifically prioritized boosting clock speeds at the cost of instructions-per-clock.

Today, the company is ever so briefly revisiting those old days with the $689 Core i9-14900KS, its newest flagship desktop processor. The i9-14900KS can hit speeds of 6.2 GHz out of the box, a small push past the last-generation i9-13900KS and the i9-14900K that topped out at 6.0 GHz. Like other recent high-end Intel desktop chips, it also features Intel's "Adaptive Boost Technology," which will allow the chip to increase its power consumption and performance until it hits 100° Celsius.

This kind of clock speed boosting is both impressive and impractical. On the one hand, Intel has managed to push clock speeds even higher without changing its architecture or manufacturing process, a culmination of years of iteration across the 12th-, 13th-, and 14th-generation processor families. On the impractical side, the i9-14900KS can use a ridiculous amount of power to achieve marginally faster performance, reminding us of the laws of physics that helped shut down the megahertz wars in the first place.

Enlarge / Dr. Craig Wright arrives at the Rolls Building, part of the Royal Courts of Justice, on February 06, 2024, in London, England. (credit: Dan Kitwood / Staff | Getty Images News)

"Overwhelming evidence" shows that Australian computer scientist Craig Wright is not bitcoin creator Satoshi Nakamoto, a UK judge declared Thursday.

In what Wired described as a "surprise ruling" at the closing of Wright's six-week trial, Justice James Mellor abruptly ended years of speculation by saying:

"Dr. Wright is not the author of the Bitcoin white paper. Dr. Wright is not the person that operated under the pseudonym Satoshi Nakamoto. Dr. Wright is not the person that created the Bitcoin system. Nor is Dr. Wright the author of the Bitcoin software."

Wright was not in the courtroom for this explosive moment, Wired reported.

Enlarge (credit: Getty Images | Justin Sullivan )

Epic Games yesterday urged a federal court to sanction Apple for alleged violations of an injunction that imposed restrictions on the iOS App Store. Epic cited a 27 percent commission charged by Apple on purchases completed outside the usual in-app payment system and other limits imposed on developers.

"Apple is in blatant violation of this Court's injunction," Epic wrote in a filing in US District Court for the Northern District of California. "Its new App Store policies continue to impose prohibitions on developers that this Court found unlawful and enjoined. Moreover, Apple's new policies introduce new restrictions and burdens that frustrate and effectively nullify the relief the Court ordered."

The permanent injunction issued by the court in September 2021 said that Apple may not prohibit app developers from including external links to alternate sales channels "or other calls to action that direct customers to purchasing mechanisms" that aren't Apple's in-app purchasing system. The injunction also said that Apple may not prohibit developers from "communicating with customers through points of contact obtained voluntarily from customers through account registration within the app."

Enlarge (credit: Getty | Bloomberg)

As health systems around the US are still grappling with an unprecedented ransomware attack on the country's largest health care payment processor, the US Department of Health and Human Services is opening an investigation into whether that processor and its parent company, UnitedHealthcare Group, complied with federal rules to protect private patient data.

The attack targeted Change Healthcare, a unit of UnitedHealthcare Group (UHG) that provides financial services to tens of thousands of health care providers around the country, including doctors, dentists, hospitals, and pharmacies. According to an antitrust lawsuit brought against UHG by the Department of Justice in 2022, 50 percent of all medical claims in the US pass through Change Healthcare's electronic data interchange clearinghouse. (The DOJ lost its case to prevent UHG's acquisition of Change Healthcare and last year abandoned plans for an appeal.)

As Ars reported previously, the attack was disclosed on February 21 by UHG's subsidiary, Optum, which now runs Change Healthcare. On February 29, UHG accused the notorious Russian-speaking ransomware gang known both as AlphV and BlackCat of being responsible. According to The Washington Post, the attack involved stealing patient data, encrypting company files, and demanding money to unlock them. The result is a paralysis of claims processing and payments, causing hospitals to run out of cash for payroll and services and preventing patients from getting care and prescriptions. Additionally, the attack is believed to have exposed the health data of millions of US patients.

The 1994 cult classic film The Crow turns 30 this spring, so it's as good a time as any to drop the first trailer for the long-in-development reboot directed by Rupert Sanders (Snow White and the Huntsman, Ghost in the Shell). Bill Skarsgård takes on the starring role made famous by the late Brandon Lee.

(Spoilers for the original 1994 film below.)

Based on a 1989 limited comic series by James O'Barr, The Crow was directed by Alex Proyas. The film starred Brandon Lee as Eric Draven, a rock musician in crime-ridden Detroit. He and his fiancée, Shelly Webster (Sofia Shinas), are brutally murdered on Devil's Night by a gang of thugs on the orders of a crime boss named Top Dollar (Michael Wincott). A year later, Eric is resurrected, dons black-and-white face paint, and proceeds to take his bloody revenge before returning to his grave. Alas, Lee was accidentally killed by a prop gun during the final days of shooting; the film was completed with the help of Lee's stunt double (Chad Stahelski, who launched the John Wick franchise) and some clever special effects.

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  The Asus Zenfone 11 Ultra. [credit: Asus ]

Asus' latest flagship is the Zenfone 11 Ultra. For lovers of small phones, this represents one of the stalwart small-phone manufacturers abandoning you. I'm sorry. The Zenfone 10 was a unique little 5.9-inch powerhouse, but the Zenfone 11 is just another big Android phone with the same 6.78-inch display as everyone else. Big displays are expensive, so of course, the price is bigger, too: $899 instead of the $699 price of the smaller phone.

The whole phone looks a lot more generic than last year. Instead of the two big camera circles of the Zenfone 10, the back now has a square camera block that looks like every other phone. The front screen is flat, the sides are a flat metal band, and the only real identifying features are a few decorative lines on the rear panel.

That big 6.78-inch display is a 2400×1080 OLED. Normally, it runs at 120 Hz, but Asus says it's capable of 144 Hz "for gaming only." It has a Snapdragon 8 Gen 3 SoC, 12GB or 16GB of RAM, and 256GB or 512GB of UFS4.0 storage. The 5500 mAh battery is a bit bigger than most phones, so that's something to cling to. The phone has 65 W wired charging and 15 W wireless charging, IP68 dust and water-resistance, and an in-screen fingerprint reader. There's a 3.5 mm headphone jack on the bottom of the phone.