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Peano arithmetic is enough, because Peano arithmetic encodes computation

$\begingroup$ PA is enough, because PA can encode computation. This is longer than I expected, and was made longer still by some browser crashes. But I'd been idly thinking of writing these ideas up. I hadn't for these reasons. It is a lot of work. What I have to say is obvious to logicians, and they would consider the detour into programming to only be a distraction. Computer programmers who can appreciate the programming detour, are mostly not that interested in logic. But this question hi

$100 Hamburger

Aviation slang $100 hamburger ("hundred-dollar hamburger") is aviation slang for the excuse a general aviation pilot might use to fly.[1][2] Background [ edit ] A $100 hamburger trip typically involves flying a short distance (less than two hours), eating at an airport restaurant, and then flying home. "$100" originally referred to the approximate cost of renting or operating a light general aviation aircraft, such as a Cessna 172, for the time it took to fly round-trip to a nearby airport. H

SIMD-friendly algorithms for substring searching

Introduction Popular programming languages provide methods or functions which locate a substring in a given string. In C it is the function strstr , the C++ class std::string has the method find , Python's string has methods pos and index , and so on, so forth. All these APIs were designed for one-shot searches. During past decades several algorithms to solve this problem were designed, an excellent page by Christian Charras and Thierry Lecroq lists most of them (if not all). Basically these al

Tesla faces protests in Austin over Musk's robotaxi plans

With Elon Musk looking to June 22 as his tentative start date for Tesla's pilot robotaxi service in Austin, Texas, protesters are voicing their opposition. Public safety advocates and political protesters, upset with Musk's work with the Trump administration, joined together in downtown Austin on Thursday to express their concerns about the robotaxi launch. Members of the Dawn Project, Tesla Takedown and Resist Austin say that Tesla's partially automated driving systems have safety problems. T

Just add humans: Oxford medical study underscores the missing link in chatbot testing

Join the event trusted by enterprise leaders for nearly two decades. VB Transform brings together the people building real enterprise AI strategy. Learn more Headlines have been blaring it for years: Large language models (LLMs) can not only pass medical licensing exams but also outperform humans. GPT-4 could correctly answer U.S. medical exam licensing questions 90% of the time, even in the prehistoric AI days of 2023. Since then, LLMs have gone on to best the residents taking those exams and

UK unis to cough up to £10M on Java to keep Oracle off their backs

UK universities and colleges have signed a framework worth up to £9.86 million ($13.33 million) with Oracle to use its controversial Java SE Universal Subscription model, in exchange for a "waiver of historic fees due for any institutions who have used Oracle Java since 2023." Jisc, a membership organization that runs procurement for higher and further education establishments in the UK, said it had signed an agreement to purchase the new subscription licenses after consultation with members.

The Tech Job Meltdown

He wrote me a prescription; he said “You are depressed I'm glad you came to see me to get this off your chest Come back and see me later, next patient please Send in another victim of industrial disease” Industrial Disease, Dire Straits The Google campus doesn’t look as friendly as it used to. (this ia actually from Bartertown in Mad Max 3 - you can see Thunderdome in the middle) Since the start of 2023, more than half-a-million tech workers have been laid off. This isn’t the impact of COV

U.S. Army bringing in big tech executives as lieutenant colonels

Four senior executives of tech giants like Meta and Palantir are being sworn into the Army Reserve as direct-commissioned officers at the unusually high rank of lieutenant colonel as part of a new program to recruit private-sector experts to speed up tech adoption. The Army calls the program to recruit Silicon Valley executives Detachment 201: The Army’s Executive Innovation Corps. One of the executives, Andrew Bosworth of Meta (formerly Facebook) posted on X that the “201” monicker was a nod t

This Android notification exploit could trick you into opening some very unfriendly links (Updated)

Joe Maring / Android Authority TL;DR A bug in Android notifications can cause the “Open link” button to open a different link than the one displayed. Hidden characters in the messages can confuse the system, causing it to open a link that only makes up a part of the one in the displayed notification. Until Google issues a fix, it’s safest to avoid using the “Open link” button and open links manually in the app. Update, June 13, 2025 (5:19 PM ET): Google has reached out to Android Authority w

Anker SOLIX EverFrost 2 40L electric cooler drops to its all-time low price

Edgar Cervantes / Android Authority I have actually been using the Anker SOLIX EverFrost 2 40L electric cooler for some time, and I love it. I know it’s a bit pricey, but discounts come from time to time. Right now, you can get it for its record-low price, saving you $200. Buy the Anker SOLIX EverFrost 2 40L electric cooler for just $699.99 ($200 off) This offer is available from Amazon. It is a “limited time deal,” which means the deal should end relatively soon. This also makes it an automat

Whatever Happened to Sandboxfs?

Back in 2017–2020, while I was on the Blaze team at Google, I took on a 20% project that turned into a bit of an obsession: sandboxfs. Born out of my work supporting iOS development, it was my attempt to solve a persistent pain point that frustrated both internal teams and external users alike: Bazel’s poor sandboxing performance on macOS. sandboxfs was a user-space file system designed to efficiently create virtual file hierarchies backed by real files—a faster alternative to the “symlink fore

We found a germ that 'feeds' on hospital plastic – new study

Plastic pollution is one of the defining environmental challenges of our time – and some of nature’s tiniest organisms may offer a surprising way out. In recent years, microbiologists have discovered bacteria capable of breaking down various types of plastic, hinting at a more sustainable path forward. These “plastic-eating” microbes could one day help shrink the mountains of waste clogging landfills and oceans. But they are not always a perfect fix. In the wrong environment, they could cause

I convinced HP's board to buy Palm and watched them kill it

I've never shared this story publicly before—how I convinced HP's board to acquire Palm for $1.2 billion, then watched as they destroyed it while I was confined to bed recovering from surgery. This isn't just another tech failure analysis. I was the HP Chief Technology Officer who led the technical due diligence on Palm. I presented to Mark Hurd and the HP board, making the case for moving forward with the acquisition. I believed we were buying the future of mobile computing. Then I watched it

Today's NYT Connections: Sports Edition Hints and Answers for June 14, #264

Looking for the most recent regular Connections answers? Click here for today's Connections hints, as well as our daily answers and hints for The New York Times Mini Crossword, Wordle and Strands puzzles. Today's Connections: Sports Edition has a whopper of a purple category, but since the other three categories aren't that tough, it kind of fills itself in. Read on for hints and the answers. Connections: Sports Edition is out of beta now, making its debut on Super Bowl Sunday, Feb. 9. That's

Archer drops about 15% on $850 million share sale following Trump air taxi pilot program

Midnight, an all-electric aircraft from company Archer Aviation, is seen at the Salinas Municipal Airport in Salinas, California, on Aug. 2, 2023. Archer Aviation 's stock dropped about 15% on Friday after the air taxi maker said it sold $850 million worth of shares. The electric vertical takeoff and landing vehicle, or eVTOL, company said Thursday it plans to use the financing to support new infrastructure and the rollout of an artificial intelligence-based aviation software platform. The mon

The case for embedding audit trails in AI systems before scaling

Join the event trusted by enterprise leaders for nearly two decades. VB Transform brings together the people building real enterprise AI strategy. Learn more Editor’s note: Emilia will lead an editorial roundtable on this topic at VB Transform this month. Register today. Orchestration frameworks for AI services serve multiple functions for enterprises. They not only set out how applications or agents flow together, but they should also let administrators manage workflows and agents and audit t

Google Clock starts drip-feeding its big Material 3 Expressive makeover

Hadlee Simons / Android Authority TL;DR Google Clock v7.14 brings small but noticeable visual updates to the alarm and settings toggles. The refreshed toggle design is part of Google’s shift toward Material 3 Expressive. A full redesign is expected with version 8 of the Clock app. Google’s Clock app is still waiting on its big Material 3 Expressive makeover, but a more minor update is already starting to move the visuals in that direction. Version 7.14 of the app introduces some subtle UI tw

AirTag helps London couple recover stolen car after police refuse to act

A London couple was able to locate and reclaim their Jaguar E-Pace this week using Apple’s AirTag, after local police chose not to take immediate action, even with real-time location data in hand. As reported by BBC News, the £46,000 stolen vehicle was taken from outside the couple’s home in Brook Green, Hammersmith, on June 3. The car had an AirTag hidden inside, which allowed the owners to track its precise location to a nearby neighborhood in Chiswick. The couple contacted the Metropolitan

As Trump Comes for Your Social Media, It’s Time You Consider What’s Worth Sharing

Agents of the Trump administration are increasingly using social media posts to crack down on immigrants, tourists, and even some U.S. citizens. Last month, a leaked document showed the State Department had crafted a new standard for reviewing the social media accounts of any foreign students planning to attend or even visit Harvard University. Legal immigrants may have benefits denied based on social media activity, and people expressing opinions or acting contrary to Trump are being detained a

Today's NYT Connections Hints, Answers and Help for June 14, #734

Looking for the most recent Connections answers? Click here for today's Connections hints, as well as our daily answers and hints for The New York Times Mini Crossword, Wordle, Connections: Sports Edition and Strands puzzles. Dog-lovers, today's NYT Connections puzzle is barking out your name. Two dog-related categories should make it easy for fans of our furry friends. Read on for clues and today's Connections answers. The Times now has a Connections Bot, like the one for Wordle. Go there aft

Archer drops 15% on $850 million share sale following Trump air taxi pilot program

Midnight, an all-electric aircraft from company Archer Aviation, is seen at the Salinas Municipal Airport in Salinas, California, on Aug. 2, 2023. Archer Aviation 's stock dropped about 15% on Friday after the air taxi maker said it sold $850 million worth of shares. The electric vertical takeoff and landing vehicle, or eVTOL, company said Thursday it plans to use the financing to support new infrastructure and the rollout of an artificial intelligence-based aviation software platform. The mon

The Internet Archive modernizes its GeoCities GIF search engine

The Internet Archive made it easier to search for '90s-era GIFs. GifCities contains millions of animations from the decade of flannel shirts and Soup Nazis. The GIFs were pulled from old GeoCities webpages, which (mostly) bit the dust in 2009. The new version of GifCities is much easier to search. You can now search semantically, based on the animation's content. In other words, it's much more likely to bring up the topic or scene you're looking for by describing it. In GifCities' old version,

The spiritual sequel to the Pebble smartwatch is on track to ship in July

Eric Migicovsky, the creator of Pebble who's reviving the e-paper smartwatch with a new company called Core Devices, shared that the first new smartwatches are coming next month. The Core 2 Duo watch is on track to ship to pre-order customers in July and the pricier Core Time 2 is still on track to launch this year. The $149 Core 2 Duo is "near mass production" according to Migicovsky, and should land in the hands of all pre-order customers during July or August. If you pre-ordered, you'll be a

I Convinced HP's Board to Buy Palm for $1.2B. I Watched Them Kill It in 49 Days

I've never shared this story publicly before—how I convinced HP's board to acquire Palm for $1.2 billion, then watched as they destroyed it while I was confined to bed recovering from surgery. This isn't just another tech failure analysis. I was the HP Chief Technology Officer who led the technical due diligence on Palm. I presented to Mark Hurd and the HP board, making the case for moving forward with the acquisition. I believed we were buying the future of mobile computing. Then I watched it

Play FBC: Firebreak, Deus Ex and More on PlayStation Plus Soon

Remedy Entertainment released the mind-bending action game Control in 2019. And on June 17, PlayStation Plus Extra and Premium subscribers can return to the Federal Bureau of Control in the wacky, first-person co-op shooter FBC: Firebreak. PlayStation Plus is Sony's version of Xbox Game Pass, and it offers subscribers a large and constantly expanding library of games. There are three PlayStation Plus tiers -- Essential ($10 a month), Extra ($15 a month) and Premium ($18 a month) -- and each giv

Trump’s FTC may impose merger condition that forbids advertising boycotts

FTC chair alleged “serious risk” from ad boycotts After Musk's purchase of Twitter, the social network lost advertisers for various reasons, including changes to content moderation and an incident in which Musk posted a favorable response to an antisemitic tweet and then told concerned advertisers to "go fuck yourself." FTC Chairman Andrew Ferguson said at a conference in April that "the risk of an advertiser boycott is a pretty serious risk to the free exchange of ideas." "If advertisers get

Computing’s Top 30: Sukanya Meher

Sukanya S. Meher loves a good intersection. Especially the one between theory and application, which she first seriously explored in the realm of superconductor electronics. Today, Meher works in electronic design automation (EDA), bringing with her a unique perspective on circuit design, modeling, simulation, and tool development. This EDA work is also giving her the chance to explore a new intersection: that between technology design and customer success. As an AMS staff engineer at Synopsys

Epic Games sues Fortnite cheat developer for selling wallhack and auto-aim tools

Editor's take: Multiplayer gaming is about fair fights, not shortcuts. But cheaters keep buying their wins, ruining it for everyone else. Epic Games is cracking down hard because cheating isn't just unfair – it's a threat to the whole game. Sorry, losers. Cheating doesn't pay. Epic Games recently announced a new lawsuit targeting developers of Fortnite cheating tools. The company is going after an individual who created software that lets players see through walls and use auto-aim. Epic shared

There’s another leak on the ISS, but NASA is not saying much about it

There's another leak on the International Space Station, and NASA has already delayed one crew launch to the orbiting laboratory as a result. Beyond that, the space agency is not offering much information about the unfolding situation in orbit. However, multiple sources have confirmed to Ars that the leak is a serious concern for the space agency as it deals with hardware that is approaching three decades in orbit. To understand the current situation, it is important to review past leaks on th