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Is mathematics mostly chaos or mostly order?

Last winter, at a meeting in the Finnish wilderness high above the Arctic Circle, a group of mathematicians gathered to contemplate the fate of a mathematical universe. It was minus 20 degrees Celsius, and while some went cross-country skiing, Juan Aguilera, a set theorist at the Vienna University of Technology, preferred to linger in the cafeteria, tearing pieces of pulla pastry and debating the nature of two new notions of infinity. The consequences, Aguilera believed, were grand. “We just do

Is Mathematics Mostly Chaos or Mostly Order?

Last winter, at a meeting in the Finnish wilderness high above the Arctic Circle, a group of mathematicians gathered to contemplate the fate of a mathematical universe. It was minus 20 degrees Celsius, and while some went cross-country skiing, Juan Aguilera, a set theorist at the Vienna University of Technology, preferred to linger in the cafeteria, tearing pieces of pulla pastry and debating the nature of two new notions of infinity. The consequences, Aguilera believed, were grand. “We just do

Finally, an AirTag alternative for my wallet that also works with Android - and it's on sale

ZDNET's key takeaways KeySmart's SmartCard is available on Amazon for $40 (3-pack for $90). It's super thin, works with both Android and Apple iOS, has a wireless rechargeable battery, and is IPX7-rated. It needs to be recharged every 5 months or so. View now at Amazon Amazon is selling the KeySmart SmartCard for 20% off when you check out with the promo code 'KSPRIME20'. Apple AirTags have changed my life, saving me countless hours looking for keys and other items that I absent-mindedly mis

A New Welcome Offer for The Platinum Card® from American Express Gives Me Pause. Here's Why

CNET/Getty Images Would you apply for a credit card that costs hundreds of dollars if the issuer wouldn't tell you what the welcome offer was? American Express recently changed the language for the terms on The Platinum Card® from American Express without specifying the exact number of points you'd be eligible to earn with its welcome offer. A credit card's welcome bonus -- a lump sum of rewards you can earn typically for reaching a certain spending threshold in a specified number of months -

You Can Snag a $200 Amazon Instant Gift Card. Here's How

Zooey Liao/CNET The Prime Visa is easily the best credit card for shopping on Amazon with its high rewards rate and instant Amazon gift card offer. Ahead of the four-day Prime Day event on July 8-11, this card just upped its welcome offer from $150 to $200. It's rare for a credit card to offer a welcome bonus that you don't have to "earn" by spending a certain amount with the card. And while the Prime Visa technically has no annual fee, to get approved for this card, you'll need to be a Prime

X app code points to a physical card coming to X Money

X’s plans for a payments service may extend beyond the digital realm, new data suggests. According to findings from mobile app intelligence firm App Sensa, the X app has been updated over the past few weeks with several references related to a physical debit card, which can be customized with your X username. Dozens of new strings of code in the X app reference various actions you can take with the new debit card, including checking its shipping status, activating your card after it arrives, re

Storage Prices Are Going Nuts, Grab a New Samsung MicroSD Card With Adapter for Early Prime Day

Storage prices, to put it politely, have been all over the place lately. You could get motion sickness watching them rise and fall and rise again, and there’s of course the ever-present threat of tariffs that would suddenly balloon the prices of storage and many other tech goods. So when the roller-coaster of storage pricing rolls downward, it’s smart to grab some while you can. Now’s a good time, if Amazon’s 36% off deal on the Samsung EVO Select MicroSD memory card and adapter is any indicatio

The Fed Didn't Cut Rates, but Your Credit Card's APR Could Still Change. Here's What You Need to Know

CNET/Getty Images The Federal Reserve once again held interest rates steady at Wednesday's meeting, but that doesn't mean your card's interest rate can't change. There are other things -- like economic uncertainty and the potential impact of tariffs -- that could impact your credit card's APR. The Federal Open Market Committee left interest rates at a target range of 4.25% to 4.5% (PDF) in response to continued uncertainty about the economy and "somewhat elevated inflation." Chair Jerome Powel

The Fed Didn't Cut Rates, But Your Credit Card's APR Could Still Change. Here's What You Need to Know

CNET/Getty Images The Federal Reserve once again held interest rates steady at Wednesday's meeting, but that doesn't mean your card's interest rate can't change. There are other things -- like economic uncertainty and the potential impact of tariffs -- that could impact your credit card's APR. The Federal Open Market Committee left interest rates at a target range of 4.25% to 4.5% (PDF) in response to continued uncertainty about the economy and "somewhat elevated inflation." Chair Jerome Powel

Apple’s Wallet app has key new feature for saved credit cards in iOS 26

Apple’s Wallet app is getting one step closer to actually replacing your physical wallet, thanks to a new iOS 26 feature that’s available for all saved credit and debit cards. Full credit card details can now be saved inside Wallet app in iOS 26 Last year in iOS 18, Apple launched a new Passwords app across its platforms. I use the app all the time, but there are some key missing features that still send me back to 1Password. One such feature is support for storing full credit card informatio

Apple introduces new limited-time Apple Card sign-up offer: Earn $100 in Daily Cash

Once again, Apple has launched a new Apple Card sign up bonus for a limited time. Apple Card typically doesn’t come with a sign up bonus, but from time to time – Apple will launch these special offers through social media campaigns and targeted emails. Typically, I’d refer to an Apple Card sign up offer as “rare”, but there’s been so many in the past year or so that it’d no longer be an accurate term. Regardless though, if you sign up for an Apple Card normally – you don’t receive a sign up bon

Thousands and Wildcard Alliance are raising $9M for novel blockchain gaming platform

There’s something new and surprising from the people who brought us Words With Friends and Lucky’s Tale. Thousands, a revolutionary Web3 protocol that transforms word-of-mouth marketing into a universal attribution infrastructure – together with sister company The Wildcard Alliance – today announced a joint $9 million fundraising round. Arbitrum Gaming Ventures and Paradigm co-led the round. The McKinney, Texas-based companies, founded by co-CEOs Paul and Katy Drake Bettner whose past work inc

These are my favorite Find My accessories

There’s a robust ecosystem of Find My accessories on the market nowadays. All of these accessories would make great additions to your life. After all, what’s a better investment than a way to keep track of their most important possessions? As a refresher, Find My accessories broadcast a low-energy Bluetooth signal picked up by nearby Apple devices. They do not rely on GPS technology. Instead, that location is transmitted securely and privately to the Find My network. This means that your Find M

MagSafe Monday: ArmorGo Magnetic Wallet Stand adds a solid kickstand and RFID protection in a slim design

MagSafe accessories continue to be a mix of great ideas and daily annoyances, but I keep trying them all. I’ve tried enough wallets to fill a drawer in my desk, and most of them get something right, but miss on a few minor things. Recently, I’ve been trying some new wallets that do more than hold credit cards. That’s what caught my eye with the BENKS ArmorGo Magnetic Wallet Stand, and I’ve been using it for the past few weeks. Some of my favorite gear Abode Home Security System Abode is the bes

Finally, Bluetooth trackers for Android users that work better than AirTags (and are cheaper)

ZDNET's key takeaways The Chipolo One Point and Card Point normally retails for $26 and $24, respectively. They're highly accurate, robust, and integrate well into the Google ecosystem. However, the One is only splashproof, and the Card version has a non-user-replaceable battery. View now at Amazon View now at Chipolo more buying choices AirTags are one of the things that have set the Apple ecosystem apart from the Android ecosystem. But now that Google has rolled out its Find My Device netwo

Repair technician finds three of four RTX 4090s were fakes packing RTX 3000-series GPUs

Why it matters: The surprisingly common practice of replacing a high-end graphics card's GPU with a different one from a cheaper card, borking it in the process, isn't going away. A Chinese repair technician uploaded a video to YouTube showing that of the four faulty RTX 4090 cards he recently received, three of them packed RTX 3090 or RTX 3080 dies. The YouTuber explains in the video that the customer in this case paid 10,000 yuan ($1,392) for each graphics card, which were purchased from an o

Topics: 4090 card cards fake rtx

Getting Beaten by Magic: The Gathering's Final Fantasy Set Designer Was a Wild Ride

In an air-conditioned tent on a sweltering Los Angeles day at Summer Game Fest, I sat down to play a hand of the card game Magic: The Gathering and drew a handful of characters from Final Fantasy. Sitting across from me was the man who oversaw the process of turning some of the world's most beloved video game characters into playable cards for what's shaping up to be Magic's most popular set ever -- already a best seller a month before its release. Magic: The Gathering is a storied collectible

This New Coinbase Card Lets You Earn Up to 4% Back in Bitcoin. Here's How It Works

Cheng Xin/Getty Images If you've been wanting a card that can fund your crypto portfolio, the latest credit card from Coinbase and Cardless might be the answer. The Coinbase One card offers up to 4% back in bitcoin for your purchases. However, the reward rate is based on how many assets you're holding with Coinbase and details aren't yet disclosed on the card's website. We've reached out to Coinbase for clarification and will update the story if we hear back. "Partnering with Cardless has let

You Still Can't Use Apple Pay at Walmart but You Have Another Digital Wallet Option

If you're shopping at Walmart, your digital payments options are limited to the OnePay Wallet or Walmart Pay. Kativ/Getty Images If you're shopping in-store at Walmart, you can't use Apple Pay or Google Pay to make a purchase. But Walmart introduced a credit card that already offers its own digital wallet. OnePay, a Walmart majority-owned fintech, announced it's partnering with financial service Synchrony to introduce a Walmart-branded credit card this fall but you can use the OnePay digital w

The Best ‘Final Fantasy’ References in Its Huge ‘Magic: The Gathering’ Crossover

Today one of the biggest sets in Magic: The Gathering‘s recent history makes its grand arrival at last: Final Fantasy, the first of Magic‘s at-times-controversial “Universes Beyond” crossovers with other franchises to be given the full standard-legal treatment. It’s a marriage of two of gaming’s most beloved fantasy realms, and with absolute legions of fans of both Magic and Final Fantasy to please, it has to hit the highlights and mechanical flavoring of 16 mainline game’s worth of viable cards

Limited-Time VPN Deal: Get 76% Off NordVPN + Up to $50 in Amazon Gift Cards

Looking to score big with the world’s #1 VPN? NordVPN is famous for insanely good deals, but this one appeared out of nowhere. If you purchase NordVPN today, you’ll secure a free Amazon gift card. Lock in your privacy and unlock Amazon goodies! We’ll tell you all about the current promotion offering up to 76% off NordVPN, plus an Amazon gift card worth several tens of dollars. Get NordVPN + Amazon Voucher Here NordVPN & Amazon Gift Card Exclusive Deal You might be wondering if such a crazy p

If You Own an Xbox Series X/S, You Can Buy an Official 2TB Expansion Card for 40% Off on Amazon

If you own an Xbox Series X or S, you’re already aware of how quickly your storage fills up with new games. Expansions are inevitable and the Seagate Expansion Card SSD is designed specifically for these Microsoft consoles which makes it perfect for gamers who want to maintain their library within reach without sacrificing performance. Amazon currently has this must-have accessory on sale for a low of $219, down from a list price of $360. That’s a 39% discount (just barely within Black Friday t

Coinbase beefs up subscription plan by offering it with American Express credit card

Coinbase on Thursday introduced its first branded credit card in partnership with American Express . The card will be available exclusively to U.S. members of Coinbase One, the cryptocurrency platform's monthly subscription product that offers zero trading fees, increased staking rewards and other perks. Additionally, Coinbase is also creating a lower-cost "Basic" subscription tier. Cardholders will be able to earn between 2% and 4% back in bitcoin , beginning this fall, and take advantage of

How much power can a PCIe x16 graphics card draw from the motherboard alone?

Choose wisely! The correct answer, the explanation, and an intriguing story await. Correct Answer: 75W What was Comdex before it was shut down in the early 2000s? When installed in a motherboard's PCIe x16 slot, a graphics card such as the GeForce RTX 5080 can draw up to 75 watts of power directly from the slot. This power comes from the motherboard's +3.3V and +12V rails (3.3V × 3A + 12V × 5.5A), which is the maximum defined by the PCI Express base specification for a x16 slot (this limit ha

Hot deal: Buy the Sony WH-1000XM6 headphones and get a free $30 gift card!

The Sony WH-1000XM6 headphones were just launched last month, so it makes sense we haven’t seen any discounts yet. Add the fact that they are among the most sought-after headphones right now, and it makes sense that Sony needs no sales to sell them. Here’s the first offer we’ve seen on them, but it isn’t exactly a price cut. Instead, you are getting a free $30 gift card as a nice little incentive right now. Buy the Sony WH-1000XM6 and get a $30 gift card for $448 ($31.99 off) This offer is avai

The best AirTag you can buy for your wallet isn't made by Apple (and you can save 20% on bundle offers)

Max Buondonno/ZDNET ZDNET's key takeaways The Nomad Tracking Card It's a sleek tracker that's only the width of two credit cards, and the battery lasts for five months. However, be aware that it requires a wireless charger. For a limited time, Nomad is offering the popular Tracking Card paired with various Nomad wallets for a 20% off bundle price. Prices range from $59-$149 depending on the model selected. If you're like me, and you still carry around a physical wallet with your cards, cas

Wow! Samsung Galaxy S25 devices still come with a free gift card!

Lanh Nguyen / Android Authority These offers are available from Amazon. Best Buy also offers free gift cards when you purchase a Samsung Galaxy S25 series smartphone. The only difference is that getting the base Galaxy S25 will get you a less valuable $50 gift card, which is half what you would get from Amazon. Best Buy still gives you a $100 gift card for the Galaxy S25 Plus and a $200 one for the Galaxy S25 Ultra, though. Which Galaxy S25 version should you get? Are you having trouble decidi

Nvidia confirms ‘rare’ RTX 5090 and 5070 Ti manufacturing issue

It’s true : Nvidia has just confirmed it shipped some RTX 5090, RTX 5090D, and even some RTX 5070 Ti graphics chips that were missing render units, as TechPowerUp originally reported — and that you’ll be able to get a replacement if your card was affected. We have identified a rare issue affecting less than 0.5% (half a percent) of GeForce RTX 5090 / 5090D and 5070 Ti GPUs which have one fewer ROP than specified. The average graphical performance impact is 4%, with no impact on AI and Compute w

Somehow, This Han Solo JPG Is Still Worth $120

Ten years ago, I wrote an article for this site called “How the Hell Is This JPG of Han Solo Worth $225?” The article was about a new app from the card company Topps called Star Wars Card Trader in which fans could open packs and trade digital cards from a galaxy far, far away. At the time, it was novel and weird. This was before NFTs were a thing. Before most people had even heard of crypto. The idea that someone would spend $225 to own an image of Han Solo they could simply look at anywhere wa

Topics: app card cards han solo

The best microSD cards in 2025

Engadget has been testing and reviewing consumer tech since 2004. Our stories may include affiliate links; if you buy something through a link, we may earn a commission. Read more about how we evaluate products . We put several microSD cards through a range of tests to figure out which offer the best value for your storage needs. Most microSD cards are fast enough for boosting storage space and making simple file transfers, but some provide a little more value than others. If you’ve got a devi