标签：#car

The contract between the two companies ends in May 2028, Uber told TechCrunch.

Tesla's electronic door handles that have been linked to several deaths could lead to tougher safety rules for the entire auto industry. In a notice published today, the National Highway Traffic Safety Administration said that complaints about Tesla's mechanical door release don't warrant a defect investigation. Instead, the issue is better addressed through a broader […]

Introduction Polymarket , and on-chain prediction markets like it, kept bothering me for one reason. Polymarket |世界最大の予測市場™ Polymarketは世界最大の予測市場であり、さまざまなトピックにわたって将来のイベントを取引することで、最新情報を入手し、知識から利益を得ることができます。 polymarket.com Who bet on what is visible in near real time. The moment a whale places a big bet on one outcome, everyone watching piles in behind them, and the odds move accordingly. That's not manipulation — it's just what happens with a public ledger. But it doesn't satisfy the simple wish to not reveal your prediction before everyone else does. So: could you build a prediction market that keeps your pick hidden until voting closes? To find out, I built Hidden League Forecast on Midnight , a privacy-focused blockchain. It's an MVP where you just guess the winner of a fictional soccer league (the World Cup just ended, so soccer was on my mind). Note What's a prediction market? A mechanism that expresses predictions about future events as prices. Think "which team will win the World Cup match," for example. If you want to learn more about prediction markets, this resource (Japanese) is a great start: https://zenn.dev/barabara/books/prediction-markets-structure The backend is written in Compact , Midnight's smart contract language. Note It combines the commit-reveal pattern with zero-knowledge proofs so that "the content of your prediction stays hidden, while only the aggregate stake becomes public." In this article, I'll walk through the contract code, showing what stays hidden and what becomes public at each step. Note This app runs on testnet. Demo Video After connecting Lace Wallet, you see your Shielded Address and balance. From here you can deploy a new market or enter an existing contract address to join one. The Overall Flow What's actually happening is simple. OPEN → REVEAL → AWAITING RESULT → RESOLVED → CLAIM Connect Lace Wallet, then deploy a market or join an existing one Pick one of 4 teams (Amber Foxes / Cedar Owls / Harbor Whales / Meadow Bears) and

US robotics researchers flew to Venezuela with snakebots after getting a call.

Back-of-the-envelope estimation for system design interviews Most people don't fail capacity math because the arithmetic is hard. They fail because they do it silently, produce a number they can't defend, and then never use it again for the rest of the interview. The math itself is trivial. The method is what's worth learning. Why interviewers ask Capacity estimation isn't a numeracy test. It's checking two things: Can you tell whether a design is physically possible before you commit to it? Do you know which constraint actually binds — storage, read throughput, write throughput, or bandwidth? A candidate who estimates 30,000 reads/sec and 200 writes/sec has learned something that changes the design. A candidate who computes petabytes of storage and then never mentions it again has just performed arithmetic. Round aggressively Precision is a trap. You're not producing a capacity plan; you're finding the order of magnitude. The single most useful substitution: 1 day = 86,400 seconds ≈ 10^5 seconds That's a 16% error and it makes every subsequent division doable in your head. Nobody will challenge it. Everyone will notice if you spend forty seconds long-dividing by 86,400. A few more worth having ready: 1 million requests/day ≈ 12/sec — round to 10 1 KB × 1 million = 1 GB 1 KB × 1 billion = 1 TB Peak traffic ≈ 2–3× average Replicated storage ≈ 3× raw ## Work in one direction Users → requests → QPS → storage → bandwidth. Don't jump around. Say each assumption out loud and label it as an assumption, so the interviewer can correct you early rather than watch you build on sand. A worked example Say we're designing a social feed. Given: 100M daily active users. Assumptions (stated, not smuggled in): Each user posts 0.2 times/day Each user reads their feed 10 times/day A post averages 1 KB including metadata A feed page shows 20 posts Writes 100M × 0.2 = 20M posts/day 20M / 10^5 = 200 writes/sec Peak (3×) = 600 writes/sec Reads 100M × 10 = 1B feed loads/day 1B / 10^5 = 10,0

If you've been anywhere near AI job postings lately, you've seen the title: Forward-Deployed Engineer. Sometimes it's "Deployment Engineer" or "Solutions Engineer" or "Applied AI Engineer." Sarvam is hiring more than a hundred of them. Palantir built a large part of its business on them. OpenAI, Anthropic, and a long tail of AI startups are all competing for the same people. And yet, if you ask five engineers what an FDE is , you'll get five different answers. Let's fix that. The one-sentence definition A Forward-Deployed Engineer is an engineer who is deployed forward — to the customer — to take a powerful but generic product and make it solve that specific customer's real problem. The word "forward" is borrowed from the military sense: you're not back at HQ, you're out in the field where the actual work happens. For an FDE, "the field" is the customer's environment — their data, their workflows, their constraints, their stakeholders. Think of it as part engineer, part consultant, part founder-in-the-field. You build, but you build for someone specific, sitting right next to you . Why AI companies need this role so badly right now Here's the thing about modern AI products: they're incredibly powerful and incredibly generic . A foundation model or an AI platform can do a thousand things — but an enterprise customer doesn't want a thousand things. They want their one problem solved, with their data, inside their systems, respecting their compliance rules. That gap — between "powerful generic product" and "solves my specific problem" — is exactly where deals are won and lost. And it's too custom, too messy, and too high-stakes to solve with documentation alone. So AI companies send an engineer to close the gap in person. That engineer is the FDE. One strong FDE can be the difference between a seven-figure enterprise contract signing or walking away. That's why the role is: High-leverage — your work directly moves revenue Well-paid — companies pay up for people who can

We've been testing a new project this week. The project's origin story is a mess. Upper management...

In an earnings call yesterday, Tesla CEO Elon Musk did his best to paint a positive portrait of the company's robotaxi program. New cities are being added, more miles are being driven, and more people are experiencing Tesla's unsupervised vehicles. But Musk's typical bullishness seemed to be absent from the call, as the occasional trillionaire […]

Ford plans to embed Apple Maps directly into its Universal Electric Vehicle Platform, which will start with a $30,000 midsize pickup truck set for release in 2027. In an announcement on Thursday, Ford says it will use Apple Maps to offer "turn-by-turn directions using natural language, real-time traffic and incident information, intuitive search featuring detailed […]

Before I hand this over, I want to tell you where I'm actually standing right now. I'm looking at the biggest mountain yet: building our hospital's own ERP and EMR — the systems that run the business side and the medical records side of the whole place. That's usually the job of specialized companies, and it's tangled up with outside regulators too. Nobody knows how long it'll take. I'm assuming at least three years. Honestly, it feels overwhelming. The size of the fear hasn't changed. My grip on it has. Here's the strange part. That overwhelmed feeling isn't unfamiliar at all. A year ago, staring at a blank screen and not knowing what code even was, I felt exactly this lost. What's different isn't the size of the fear. It's that I now know what to do with it. Get curious, look it up. Look it up, a direction shows up. See a direction, find a method, and just start. Fail, and you've learned something. Succeed, and you move to the next thing. That loop is the only thing that ever carried me anywhere , and it's the same loop I'm running at the foot of this much bigger mountain. Right now the wall isn't technical The thing I don't know isn't code. It's other departments. I moved from the treatment room to the planning office not long ago, and I still don't really know how the other departments do their work. You can't automate what you don't understand. So before anything else, I'm doing the one thing that actually comes first: listening. Hearing what people in the field actually need, what's grinding on them, and figuring out the shape of a fix together, one conversation at a time. I've noticed something before, more than once: problems that look completely different from the outside — counting a stack of forms, tracking down misplaced supplies, sorting a pile of ID cards — usually reduce to the exact same shape underneath. Make the pile of things findable. I suspect the same pattern is waiting inside every other department too. I just haven't looked yet. That's how I

Gas prices are up, and US car dealerships are full of hybrids. Customers are going for it.

Every day, I see discussions about how AI assistants and Copilot are changing software development. And honestly? I agree. AI is helping us save time, automate repetitive work, and learn faster than ever before. But recently, I've noticed something that concerns me. Some interviewers, managers, and even developers are starting to treat AI-generated answers as the "correct" answers. That's where I think we're making a mistake. 🤔 Does Copilot Know Your Responsibilities? We've all seen responses like: "With 10 years of experience, you should know this." But who decides that? Does Copilot know: The projects you've worked on? The systems you've built? The challenges you've solved? The responsibilities you've carried for the last 10 years? The answer is simple: No. Two developers can have 10 years of experience and possess completely different skill sets. One may be an expert in distributed systems. Another may specialize in frontend architecture. A third may have spent years building enterprise applications. Meanwhile, a developer with only 5 years of experience may know a modern technology that none of them have ever needed. Does that make anyone less capable? Absolutely not. It simply means their journeys were different. 🚨 Experience Is Not a Checklist Let's take a different example. Suppose someone has spent 10 years mastering Figma and has become an exceptional designer. Does that automatically mean they should be an expert in Photoshop, Illustrator, CorelDRAW, Sketch, and every other design tool? Of course not. Their expertise reflects the work they've done and the problems they've solved. The same applies to software engineering. Experience is about depth, not knowing everything. ⚠️ The Risk of Over-Relying on AI Don't get me wrong. I use AI. Most developers I know use AI. And it saves hours of effort. But there's a difference between: ✅ Taking help from AI and ❌ Letting AI think for you When every answer, every opinion, and every decision comes from AI, something

Q2 2026 was profitable, but barely.

After a dismal two years of weakening demand, falling sales, and damage to its brand by Elon Musk's political activities, Tesla's road to recovery continues apace. On the heels of an impressive delivery report, the company released its earnings for the second quarter of 2026 - giving us the latest glimpse at the EV company […]

Como eu mostro que estou contribuindo? Posso colocar no meu LinkedIn? E no meu currículo, como faço? Foi a partir dessas dúvidas que eu elaborei esse guia pra você que quer contribuir do seu jeito e mostrar às empresas e às pessoas, de forma clara e estratégica, o que você está fazendo. Vamos lá? 👇 Por que eu deveria mostrar no LinkedIn? LinkedIn é a porta de entrada para o mundo corporativo no Brasil e no mundo. É por meio dele que você mostra "trabalho". E tem mais: não é só experiência remunerada que conta como evidência de que você tem conhecimento e prática, mas também tudo o que você constrói de forma voluntária , seja tirando dúvida de alguém, participando de um projeto open-source ou escrevendo sobre o que aprendeu. Recrutador não lê currículo pensando só em carteira assinada. Lê pensando em capacidade . Você contribui com algo para a comunidade e quer colocar isso no seu perfil. Existem 3 formas que você pode usar, e elas podem ser usadas todas juntas ou só uma. Escolha aquela que fizer mais sentido pro seu perfil ou busque por outras pessoas que você admira dentro da comunidade e veja como elas colocaram no próprio perfil. 1. Seção de Experiência Use como experiência sempre que estiver contribuindo de forma profissional pra uma área que você busca. Se você participa de contribuições no GitHub, seja através de código, documentação ou outra forma, use como experiência. Pessoas que também estão ajudando na moderação ou administração (community managers) podem destacar as responsabilidades ou resultados das suas ações por aqui. Exemplo de como preencher no LinkedIn: Cargo: [cargo que você faz] Open Source Empresa: [Nome do projeto/organização] Tipo de emprego: Meio período (ou Voluntário) Local: Remoto, Brasil Descrição: - Contribuí com [X] pull requests na documentação do projeto [Nome], focando em clareza para novos contribuidores. - Revisei issues abertas e sugeri melhorias de acessibilidade em componentes de UI usando [ferramenta/stack]. - Participei de re

When it comes to enthusiast-geared Honda hardware, the Civic Si, Civic Type R, and Acura NSX often come to mind first for their revvy VTEC (Honda's form of variable valve timing) engines and playful chassis dynamics. The Prelude, on the other hand, less so. Instead, the Prelude is a technological study - still aimed at […]

The Range Rover GT will debut as an EV with a hybrid version to follow.

It’s “the most car-like Range Rover ever created,” but will this all-electric grand tourer spoil Jaguar’s Type 01 party?

Everyone is arguing about AI ROI right now. Boards want a number. Consultants are selling frameworks. And the headlines look brutal: an MIT report claimed 95% of enterprise GenAI pilots showed no measurable return, and a Forbes piece this January says 56% of CEOs see zero ROI from AI. So AI is a bust, right? Here is the thing. Ask any of those same companies to turn off email for a week. Just try it. Nobody ever ran a six month ROI study on email. Nobody had to. It became the way work happens, and the return stopped being a line item because it was everywhere. I think AI is following the same path, and the data backs it up. The gap between the pilot and the person That same MIT report has a stat that got way less coverage than the 95% number: 90% of employees regularly use personal AI tools for work, while only 40% of companies have an official LLM subscription. Workers adopted it at more than twice the rate of their own employers. The report even found that 70% of workers prefer AI over a colleague for quick stuff like drafting emails and basic analysis. So the official pilot fails its KPI review while the people inside the building are quietly using AI multiple times a day. That is not a failed technology. That is a measurement problem. Worth noting: the 95% figure itself has been heavily criticized. It came from 52 interviews and a narrow definition of success. I would not build a strategy on that number in either direction. Why the ROI is invisible The value seems to be landing in the same place email's value landed: the unglamorous middle of the workday. Drafting the reply. Summarizing the thread. Turning messy notes into something you can send. None of that shows up as a new revenue line. It shows up as an hour you got back and immediately spent on something else. You cannot easily measure that, but you can feel it. Take the tools away from a developer who has been using them for a year and watch what happens. People cannot imagine working without it anymore.

Your resume tells people what you’ve done. Your GitHub shows what you’ve built. But your personal website tells people who you are. When I started learning web development, I believed that a good resume and a few GitHub repositories were enough. Like many students, I spent countless hours building projects, solving coding problems, and learning new technologies. Every new project felt like a milestone, yet all of them remained scattered across different platforms. A recruiter would have to open my resume, visit my GitHub, search for my LinkedIn profile, and perhaps never even discover the articles I had written or the experiments I had built. That made me realise something important. Developers need a place on the internet that they truly own. Not another profile. Not another social media account. A place that represents their identity, work, and journey. That’s what a personal website becomes. More Than Just a Portfolio Many people hear the words personal website and immediately think of a portfolio with a few screenshots and a contact form. A great developer website goes much further. It answers questions before anyone has to ask them. Who are you? What technologies do you enjoy working with? What problems have you solved? What kind of developer are you becoming? What have you learned recently? How can someone reach you? Instead of forcing visitors to jump across five different platforms, everything exists in one carefully designed experience. Your Name Deserves a Home Every developer works hard to build projects. Very few work equally hard to build their own identity. When someone searches your name, what should they find? Ideally, the very first result should be something you completely control. A website with your own domain isn’t just another webpage. It’s your digital home. Unlike social platforms, algorithms cannot redesign your identity overnight. You decide what visitors see first. You decide which projects matter. You decide how your story is told. Resume