Who hasn’t spent sleepless nights pondering what would happen if we applied Vilfredo Pareto's (the early 20th-century Italian economist) theories to Mario, the Mushroom Kingdom’s Italian high-jump champion and part-time elephant cosplayer? Data scientist Antoine Mayerowitz, PhD, tackled that age-old question, and the resulting work provides an objective way to tell us the best Mario Kart 8 racer combinations. Hint: It sure as hell ain’t Koopa Troopa.

When you break down the build options (including driver stats and various vehicle details) in Mario Kart 8 Deluxe, there are over 700,000 possible combinations. Yikes. But once you eliminate duplicates that differ only in appearance, you can narrow it down to “only” 25,704 possibilities. How do you narrow it down to find the best racer from there? Enter Mr. Pareto.

Pareto’s theories, most notably the Pareto front, help us navigate the complexities of choice. They can pinpoint the solutions with the most balanced strengths and the fewest trade-offs. Pareto’s work is about efficiency and effectiveness. Now we’re talking.

Nintendo

When choosing a Mario Kart racer, you have to consider their stats for speed, acceleration, handling, weight, offroad and mini turbo. That’s a lot to weigh.

Even if you decide that speed and acceleration are the most important, you’re still left with imbalances. For example, it’s tempting to go all in on speed (like Bowser or Wario), but they have weak acceleration. However, if you prioritize acceleration instead (such as Baby Mario or Dry Bones), you may be left with quick surges that plateau at a lousy top speed.

Meanwhile, some racers are always dominated in the most important stats — meaning their balance of speed and acceleration consistently come out behind. Koopa is one example of that, so don’t pick him if you care about winning. (But you can absolutely choose him because he has cute bug eyes and a snazzy shell.)

Nintendo

Mayerowitz’s Pareto front analysis lets you narrow your possibilities down to the 14 most efficient. And it turns out the game’s top players were onto something: One of the combinations with the most ideal balance of speed, acceleration and mini-turbo is Cat Peach driving the Teddy Buggy, roller tires and cloud glider — one already favored among Mario Kart 8 competitors.

Of course, if that combination isn’t your cup of tea, there are others that allow you to stay within the Pareto front’s optimal range. As Eurogamer points out, Donkey Kong, Wario (my old standby, mostly because he makes me laugh) and Princess Peach are often highlighted as drivers, and you can use Mayerowitz’s data fields to find the best matching vehicles. Keep in mind that others have identical stats, so racers like Villager (female), Inkling Girl and Diddy Kong are separated only by appearances.

To find your ideal racer, you can head over to Mayerowitz’s website. There, you can enter your most prized stats and view the combos that give you the best balance (those highlighted in yellow), according to Pareto’s theories.

This week, it’s all about cars and Lucy Liu in VR. Devindra chats with Senior Writer Sam Rutherford about his visit to the New York International Auto Show, where he saw the Polestar 4, a unique new EV without a rear window. Also, Cherlynn pops in to chat with Lucy Liu about her new VR game, The Pirate Queen. We also explore the issues around Florida’s bill banning young kids from social media sites, and Sam tells us why he likes Netflix’s Avatar: The Last Airbender adaptation.

Listen below or subscribe on your podcast app of choice. If you've got suggestions or topics you'd like covered on the show, be sure to email us or drop a note in the comments! And be sure to check out our other podcast, Engadget News!

Topics

• Sam Rutherford on what’s new in EVs and car tech from the New York Auto Show – 0:57

• Cherlynn Low interviews Lucy Liu about her new VR game The Pirate Queen – 34:39

• Florida Governor signs bill banning young children from social media – 54:55

• Intel confirms Copilot will eventually run locally – 58:33

• There’s finally a version of Chrome that runs well on ARM-based Windows machines – 1:02:43

• Canadian researchers have created a camera that takes 156.3 trillion frames per second – 1:05:06

• Working on – 1:07:08

• Pop culture picks – 1:12:44

Subscribe!

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• Spotify

• Pocket Casts

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Credits 

Hosts: Devindra Hardawar and Sam Rutherford
Guest: Cherlynn Low and Lucy Liu
Producer: Ben Ellman
Music: Dale North and Terrence O'Brien

This week, it’s all about cars and Lucy Liu in VR. Devindra chats with Senior Writer Sam Rutherford about his visit to the New York International Auto Show, where he saw the Polestar 4, a unique new EV without a rear window. Also, Cherlynn pops in to chat with Lucy Liu about her new VR game, The Pirate Queen. We also explore the issues around Florida’s bill banning young kids from social media sites, and Sam tells us why he likes Netflix’s Avatar: The Last Airbender adaptation.

Listen below or subscribe on your podcast app of choice. If you've got suggestions or topics you'd like covered on the show, be sure to email us or drop a note in the comments! And be sure to check out our other podcast, Engadget News!

Topics

• Sam Rutherford on what’s new in EVs and car tech from the New York Auto Show – 0:57

• Cherlynn Low interviews Lucy Liu about her new VR game The Pirate Queen – 34:39

• Florida Governor signs bill banning young children from social media – 54:55

• Intel confirms Copilot will eventually run locally – 58:33

• There’s finally a version of Chrome that runs well on ARM-based Windows machines – 1:02:43

• Canadian researchers have created a camera that takes 156.3 trillion frames per second – 1:05:06

• Working on – 1:07:08

• Pop culture picks – 1:12:44

Subscribe!

• iTunes

• Spotify

• Pocket Casts

• Stitcher

• Google Podcasts

Credits 

Hosts: Devindra Hardawar and Sam Rutherford
Guest: Cherlynn Low and Lucy Liu
Producer: Ben Ellman
Music: Dale North and Terrence O'Brien

If you're one of the holdouts with an iPhone who hasn't wanted to shell out for AirPods, your time has come. The Amazon Big Spring Sale has brought Apple's second-generation AirPods Pro down to a new all-time low price. The earbuds are down to $180 from $249 — a 28 percent discount and $10 less than their previously best deal. 

Apple's AirPods Pro scored an 88 in our review and hold a spot on our list of best wireless earbuds for good reason. The second-gen earbuds came on the scene in 2022 with updates such as swiping to control volume and richer, consistent sound coming through. 

Then there's the addition of the H2 chip, which helps with that improved sound quality and boosts the earbud's active noise cancellation abilities to double that of their predecessor. Battery-wise, the second-gen AirPods Pro lasted about six hours and 15 minutes when we tested it through a mix of calls, transparency mode and ANC. While most of the changes occurred internally, Apple also shrunk the ear tip to give more people a better fit. 

Your Spring Sales Shopping Guide: Spring sales are in the air, headlined by Amazon’s Big Spring sale event. Our expert editors are curating all the best spring sales right here. Follow Engadget to shop the best tech deals from Amazon’s Big Spring Sale, hear from Autoblog’s car experts on the best spring auto deals on Amazon, and find spring sales to shop on AOL, handpicked just for you.

The Biden administration recently announced that it would be requiring large cryptocurrency mining operations to report electricity usage, via a press release from The Energy Information Administration. This follows concerns that the industry could pose a threat to the nation’s electricity grids and hasten the impacts of climate change.

To that end, the EIA has targeted 137 “identified commercial cryptocurrency miners” working in the US. These operations account for around 2.3 percent of national energy usage. This breaks down to 90 terawatt-hours per year, which is more than Finland, Belgium and Chile use in that same time period. The world’s crypto miners used as much electricity in 2023 as the entire country of Australia. That's a whole lot of energy for Shiba Inu-branded internet money with no practical application.

The data collection started this week. The survey aims to get a sense of the industry’s growing demands and which parts of the country are the biggest crypto hotbeds, so as to refine policy later on. The EIA has already discovered that nearly 38 percent of all bitcoin is mined in the US, which is up from 3.4 percent in 2020.

“As cryptocurrency mining has increased in the United States, concerns have grown about the energy-intensive nature of the business and its effects on the US electric power industry,” the EIA said in a report that offered further details behind the survey.

The EIA went on to note that large crypto mining operations could strain the electricity grid during peak periods, force higher energy prices for average consumers and negatively impact energy-related carbon dioxide emissions. Most of the electricity generated throughout the world comes from burning fossil fuels, and that process releases carbon dioxide into the atmosphere.

The clean energy advocacy group RMI estimates that US cryptocurrency mines release 25 to 50 million tons of CO2 into the atmosphere every year. That’s around the same amount as the yearly diesel emissions from the US railroad industry. 

The biggest mining operations in the country are scattered throughout 21 states, but largely clustered in Texas, Georgia and New York. This is especially dangerous for Texans, as the state’s energy grid is already notoriously fragile. Ben Hertz-Shargel, who leads energy research consultancy firm Wood Mackenzie, told Ars Technica that crypto mining operations are not only placing a higher burden on the state’s energy grid, but increasing prices for consumers. 

Energy costs in Texas are based on real-time demand, so Hertz-Shargel estimates that state residents see an increase of 4.7 percent in their monthly utility bills due to cryptocurrency mining. He also said that mining operations tend to open up shop next to pre-existing renewable energy facilities, which draws clean power away from nearby homes and businesses.

It’s not all doom and gloom in the crypto world. Back in 2022, Ethereum announced a software update to make mining ether more eco-friendly. The Ethereum Foundation claims this reduces the carbon emissions of its mining operations by more than 99 percent. However, ether accounts for just 17 percent of the global cryptocurrency market share.

Samsung formally unveiled its Galaxy S24 line of smartphones at its latest Samsung Unpacked event on Wednesday, including its newest flagship, the Galaxy S24 Ultra. For a fuller idea of what to expect, you can check out my colleague Sam Rutherford's hands-on impressions. In short, though, the main updates are a new titanium frame with flatter edges, a promised seven years of software updates, an expected processor bump, a slightly tweaked camera setup and a host of new generative AI features. Starting at $1,300, the device is also $100 more expensive than its predecessor, though there are some early pre-order deals to lessen that blow a little.

If you're thinking about taking the plunge, we've broken down how the Galaxy S24 Ultra compares to two other top-end handsets, the Apple iPhone 15 Pro Max and the Google Pixel 8 Pro, on the spec sheet. As always, specs can't tell the full story, but if you want a reference for what $1,300 (or more) gets you in early 2024, here's how the new phone stacks up. 

Hideo Kojima officially unveiled his upcoming game (that leaked in 2022) at the Game Awards 2023. Previously described as something “no one has ever experienced or seen before,” the cinematic OD (previously known as Overdose) will include a collaboration with horror director and comedian Jordan Peele.

OD’s 90-second trailer includes intimate closeups of actors reading nursery rhymes and other dialogue as they grow increasingly frantic. In the clip’s final moments, you catch a glimpse of a door opening in the reflection of their eyes (with a creaking sound hammering the point home). Wherever the game’s plot takes us, the trailer makes it clear it falls squarely in the horror genre (as expected).

We already knew the title would be published by Xbox Game Studios, relying heavily on Microsoft’s cloud technology. Previous leaks indicated Death Stranding actor Margaret Qualley would play the protagonist, although she was nowhere to be found in the trailer. The billed cast in the trailer includes Sophia Lillis, Hunter Schafer and Udo Kier.

You can watch OD’s cryptic trailer below.

Back in January, Qualcomm announced Snapdragon Satellite, a project that aimed to let Android users send texts via satellite when they don't have cell service. It would have been the company's answer to Apple's emergency SOS feature that debuted in the iPhone 14 lineup. However, the initiative hasn't worked out as Qualcomm hoped.

Qualcomm is ending its Snapdragon Satellite partnership with satellite phone maker Iridium. Although the pair "successfully developed and demonstrated the technology" smartphone makers "have not included the technology in their devices," Iridium said in a statement.

Smartphone makers have “indicated a preference towards standards-based solutions” for satellite connectivity, Qualcomm told CNBC. In other words, they're looking for a more open approach that doesn't necessarily position Qualcomm as a go-between. As The Verge notes, the cost of satellite texting may have dissuaded some manufacturers too. Apple is footing the bill for emergency SOS for the time being.

Now that its agreements with Qualcomm are coming to an end, Iridium says it will be able to work directly with smartphone makers, mobile OS developers and other chipmakers. Apple, meanwhile, has expanded its emergency SOS feature by adding crash detection integration in iPhone 15.

Elsewhere, Starlink is set to roll out its satellite SMS service next year. It plans to eventually offer satellite-powered voice and data functions directly to phones, meaning users won't necessarily need to have a Starlink terminal nearby.

Humans produce around 4.4 billion tons of concrete every year. That process consumes around 8 billion tons of sand (out of the 40-50 billion tons in total used annually) which has, in part, led to acute shortages of the building commodity in recent years. At the same time, we generate about 10 billion kilograms of used coffee grounds over the same span — coffee grounds which a team of researchers from RMIT University in Australia have discovered can be used as a silica substitute in the concrete production process that, in the proper proportions, yields a significantly stronger chemical bond than sand alone. 

“The disposal of organic waste poses an environmental challenge as it emits large amounts of greenhouse gases including methane and carbon dioxide, which contribute to climate change,” lead author of the study, Dr Rajeev Roychand of RMIT's School of Engineering, said in a recent release. He notes that Australia alone produces 75 million kilograms of used coffee grounds each year, most of which ends up in landfills. 

Coffee grounds can't simply be mixed in raw with standard concrete as they won't bind with the other materials due to their organic content, Dr. Roychand explained. In order to make the grounds more compatible, the team experimented with pyrolyzing the materials at 350 and 500 degrees C, then substituting them in for sand in 5, 10, 15 and 20 percentages (by volume) for standard concrete mixtures. 

The team found that at 350 degrees is perfect temperature, producing a "29.3 percent enhancement in the compressive strength of the composite concrete blended with coffee biochar," per the team's study, published in the September issue of Journal of Cleaner Production. "In addition to reducing emissions and making a stronger concrete, we're reducing the impact of continuous mining of natural resources like sand," Dr. Roychand said. 

"The concrete industry has the potential to contribute significantly to increasing the recycling of organic waste such as used coffee," added study co-author Dr Shannon Kilmartin-Lynch, a Vice-Chancellor’s Indigenous Postdoctoral Research Fellow at RMIT. "Our research is in the early stages, but these exciting findings offer an innovative way to greatly reduce the amount of organic waste that goes to landfill,” where it's decomposition would generate large amounts of methane, a greenhouse gas 21 times more potent than carbon dioxide. 

“Let’s see what a Snickers bar does to my blood sugar,” Justin Richard, a 52-year-old Toronto-based TikToker says just before eating the candy bar on camera. After an edited time skip, Richard says, “It’s been several hours since I’ve had the chocolate bar, let’s have a look at the glucose monitor and see what actually happened.” He slightly lifts his arm flashing the device, an inconspicuous blue circular patch that almost looks like a Band-Aid. Above his head flashes a screenshot of his blood glucose reading, which appears to have spiked, dipped, and spiked again. “I had a spike in my blood sugar,” he says. “That's not a shock because this is loaded with sugar.” A red ‘X’ graphic appears over some b-roll of the Snickers bar. “I did this test because I’m trying to establish a benchmark.”

This is a typical 60-second TikTok from Richard, whose handle is @insulinresistant1 on the platform. In the following clip, Richard eats a cup of broccoli before eating another full Snickers bar, then goes on to share the results of his blood glucose levels from his personal continuous glucose monitor. He eats this oddball combination to show how variations in his food intake can impact or even prevent a blood glucose spike.

Continuous glucose monitors (or CGMs) have long been used as a tool to track blood sugar levels for people with Type 1 and Type 2 diabetes. Here’s the thing, though: Richard does not have diabetes.

While monitoring sugar intake is standard practice for people on tight blood sugar control treatment plans and those with persistently low blood glucose levels, modern CGM devices – non-invasive wearables that can attach to the back of an arm for weeks at a time – have become a popular wellness trend on social media. Users like Richard that have integrated a CGM into their daily life have stormed platforms like TikTok and Instagram. Some internet health coaches and dieticians have trumpeted their praise. On TikTok, the hashtags #insulinresistance has 1.2 billion views, while #continuousglucosemonitor has over 32.7 million views. Richard, who has over 800,000 TikTok followers, is just one influencer who helped fuel this trend. On his page, which he started during the pandemic, showcases him eating a wide range of foods and drinks, from sodas to chocolate bars, reacting to readings emitting from his Signos-sponsored CGM device.

Richard says he got into continuous glucose monitoring to “optimize his health” and prevent chronic illness, which was especially important to him considering his extensive family history of Type 2 diabetes. “It's like having a coach,” he said in an interview. “But the coach is telling you to do something.” That something was to make some pretty dramatic dietary changes. “'I'm not a healthcare professional and I don't pretend to be. All of my tests are about my blood sugar, and what I read online and how it affects me,” he said, adding that his disclaimer that “individual results will vary” is a key part of his messaging.

Getty Images

Blood glucose monitoring devices are not new. In the late 1990s, medical companies like Medtronic, Dexcom and Abbott revolutionized the way diabetes could be managed. The importance of continuous glucose monitoring for patients is well established as a means of improving glycemic control, especially in the case of Type 1 diabetes.

CGMs are a vital tool for preventing diabetic ketoacidosis, a life-threatening complication seen in Type 1 diabetic patients. When sugar levels are too high and the body begins to break down fat as fuel, it can lead to a high amount of acid circulation in the bloodstream. For non-diabetics, however, complications stemming from extremely high or low blood sugar levels isn’t a concern. There is little to no research to back that monitoring blood glucose levels in generally healthy adults equates to an overall improvement in health. 

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Dr. Idz, another TikToker with over 1.7 million followers, calls the use of CGM devices for adults without any prescribed medical need a “feature of disordered eating.” Dr. Idz, short for Idrees Mughal, is a board-certified UK-trained medical doctor with expertise in nutritional research. He became a prominent figure when he started rebuking the “nonsense health information” circulating on TikTok that “prey[s] on people's vulnerabilities.” He says CGMs aren’t really intended for non-diabetics because “our body is designed to regulate the spike.” Dr. Idz says people need to understand that spiking blood glucose is not a problem. In fact, that is supposed to happen when you eat food. “Even protein can spike your blood glucose, and no one is really hyped about that, right?”

Although there may not be an inherent physical risk for people who wear a CGM device to monitor and track sugar levels, there is a real possibility that access to “too much data” can lead to information overload, false alarms, unnecessary anxiety, confusion or misinterpretation. Slight fluctuations in blood sugar levels are normal in people who don’t have diabetes. Dr. Robert Shmerling, a senior faculty editor for Harvard Health Publishing and author of “Is blood sugar monitoring without diabetes worthwhile?” writes that, “we're at the very beginning of the learning curve for home monitoring of blood sugar in people without diabetes. Before buying into what may be the next fad in health monitoring, I think we need to learn a lot more.”

Still, it’s no surprise that more people are interested in experimenting with CGM devices. Not only are TikTokers promoting blood glucose monitoring as an indicator of health and wellness, but ads for CGM devices from up-and-coming brands like Nutrisense, Veri and Signos have been flooding social media.

The companies use language designed to sell the average person on the importance of regularly tracking blood sugar levels as a way to lose weight or as a “metabolism hack.” The idea is that eating refined carbs and sugary foods can spike blood glucose levels and, over time, the cells that are supposed to take up insulin and regulate glucose production in the liver become resistant to the hormone due to habitual bad dieting. Heather Davis, a registered and licensed dietitian and nutritionist at Nutrisense denies that the company promises weight loss through glucose monitoring. “A CGM is not a weight loss device per se,” she said. “The CGM is simply one tool among many that may support insights into how different dietary and lifestyle approaches influence metabolic health, including weight factors.”

Getty Images/iStockphoto

Dr. Idz would disagree with Nutrisense on that. He argues that the vast majority of people won't even know how to interpret CGM results. “Even me as a medical doctor, I would probably need to look at some reference values for each individual, you know, perhaps have to do some calculations. And that's me who's actually a medical doctor. Imagine the average person who's just going, ‘oh, my gosh, I've had a spike. That must mean it's bad, right?’ You don't even know how to interpret it. So it's going to be completely useless.”

Nutrisense’s Davis concedes that there is limited research currently looking at CGM use in non-diabetic populations, but she argues that “once upon a time, there was also limited research looking at CGM use in diabetic populations” and that the “risks of wearing a CGM are extremely minimal for most people.” Still, the FDA has never recommended continuous glucose monitoring for healthy individuals. It has only even approved a handful of devices for people who do suffer from diabetes. Although it may be useful for predicting a risk for pre-diabetes and diabetes, there is a consensus that more scientific studies are needed to observe CGM use among healthy populations.

Companies marketing their wearables to healthy people are entering a crowded, but growing market that’s ripe for exploitation. There is arguably an enormous opportunity for companies advertising to healthy individuals to reap financial benefits from the latest health fad.

Signos

TikToker Richard says he thinks continuous glucose monitoring is only going to grow from here. “I don't think this trend is going to end anytime soon,” he said. “Anybody and every country that's adopted this fast food, highly processed diet is having this same increase in Type 2 diabetes and you really can't ignore it. So I think this trend is gonna continue as long as this fast food is so prevalent.” Dr. Idz, on the other hand, would argue that if you want to prevent diabetes, “that's fine but you're not going to do it by wearing a CGM because you know, as long as you're not insulin resistant, you'll find that you don't need you don't need a CGM.”

To make matters worse, not only are CGMs questionably useful for healthy individuals, but they can be expensive, too. The devices must be replaced every seven to 14 days depending on the manufacturer. Nutrisense does not accept insurance coverage on the grounds it is a “wellness program,” with monthly subscriptions starting at $225 and no-commitment plans reaching $399 a month. Competitors like Signos, which accepts insurance with a diabetes diagnosis, offers a monthly plan for its wearable and monitoring app, and that costs upwards of $449 a month. Veri may accept insurance, depending on the provider. And even though it’s able to dramatically undercut its competitors, the monthly fee of between $40 to $109 is hardly cheap. Richard, who has historically paid out of pocket for his CGM devices, believes the high cost is going to “save him money in the long run.”

Unfortunately, these lofty prices don’t just affect health-conscious TikTokers. Access to CGM devices for diabetic populations can be spotty. Individuals covered by Medicaid are less likely to have one covered, especially people of color, according to the American Diabetes Association (ADA).

Aside from the technology’s often inaccessible price points, some experts argue that there simply isn't enough guidance from the scientific community on CGM applications for healthy individuals. The ADA does not recommend CGM device use by healthy people, only clearly stating that the technology should be considered “from the outset of the diagnosis of diabetes that requires insulin management.”

Dr. Idz takes this a step further, stating flatly that “there is no evidence whatsoever that blunting blood sugar spikes does anything for our health.” He backs up his argument with research from a retrospective and randomized trial that focused on the impact of blood glucose monitoring in diabetic and non-diabetic populations. Dr. Idz says, if anything, research suggests that a low average blood glucose level is bad for you and might increase mortality risk over time due to diminished consumption of healthy nutrients and decreased liver function.

Harvard’s Dr. Shmerling reports he could not find a published study suggesting that monitoring blood glucose levels directly translated into improved health. “Unfortunately, some makers of CGM systems aren't waiting for solid research results to market these devices to healthy people. So, consumers and marketing professionals — not researchers or doctors — may wind up driving demand for the product,” Dr. Shmerling writes. Despite the lacking body of evidence to support blood glucose monitoring among healthy populations, the inflated price points for direct to consumer products, and the technological handicaps still present in the burgeoning industry, the growing popularity of CGMs among health and fitness enthusiasts does not seem to be slowing down.