Tech
Enhancing Your Safety on Public Wi-Fi: The Power of a VPN
“Protect your data on public Wi-Fi with a VPN. Encrypt, mask your IP, and secure your connection. Stay safe with ExpressVPN or Surfshark.”
Public Wi-Fi has become an essential service available in coffee shops, bars, trains, and planes worldwide. However, it’s important to note that many of these networks are completely unsecured, leaving room for hackers to intercept your data, monitor your online activities, and potentially steal your private information. If you frequently connect to these hotspots, taking the time to learn about VPNs and their benefits can prove invaluable. This article aims to guide you in staying safe on public Wi-Fi.
Understanding the Risks of Public Wi-Fi
The greatest risk of connecting to public Wi-Fi lies in the possibility of falling victim to man-in-the-middle attacks. These attacks occur when an attacker intercepts the communication between your device and the Wi-Fi network, potentially gaining access to sensitive data such as your online banking details, passwords, and personal information.
Furthermore, public Wi-Fi networks can serve as breeding grounds for rogue networks. These malicious networks mimic legitimate ones and are set up by attackers to deceive unsuspecting users. Connecting to rogue networks unknowingly exposes your data to cybercriminals.
How Can a VPN Safeguard You on Public Wi-Fi?
A VPN (Virtual Private Network) shields you from these threats by routing your internet traffic through its own secure servers using powerful encryption. Here’s how it works:
- • Encryption: A VPN encrypts your data, rendering it unreadable to potential interceptors. Utilizing industry-standard AES-128 or 256 encryption, VPNs ensure that your data remains virtually uncrackable.
- • Anonymity: By masking your IP address, a VPN makes it harder for others to trace your online activities back to you.
- • Secure Connection: When you connect to a VPN server, your data travels through a secure tunnel, preventing hackers from accessing your information even if the public Wi-Fi network is compromised.
Choosing the Right VPN for Public Wi-Fi
When selecting a VPN for public Wi-Fi, consider your online activities and the duration of your usage. Here are some factors to keep in mind:
- • Data Limits and Speeds: Free VPNs often impose data limits and throttle speeds, which may suffice for occasional use but prove inadequate for regular or extended sessions.
- • Device Compatibility: Ensure that the VPN has apps available for all your devices. Premium VPNs generally support a range of platforms, including smartphones, tablets, and laptops.
- • Streaming Capability: If you want to watch videos during your breaks, opt for a VPN that can access popular streaming sites.
- • Reliability and Support: Look for VPN providers that offer 24/7 support and have a solid reputation for reliability.
Our top-rated VPN is ExpressVPN, renowned for its military-grade encryption, fast connection speeds, and exceptional customer support. With its versatility and compatibility across virtually all devices, ExpressVPN offers a 30-day money-back guarantee, allowing you to test it risk-free.
For those on a budget, Surfshark makes an excellent alternative. It provides robust security features at a lower cost, making it an ideal choice for regular public Wi-Fi users seeking reliable protection without breaking the bank.
While public Wi-Fi offers convenience, it also carries substantial risks. Using a VPN is a simple yet effective method to safeguard your data from prying eyes. Whether you choose a premium service like ExpressVPN or a budget-friendly option such as Surfshark, investing in a reliable VPN is a small price to pay for the peace of mind it brings.
By taking this precaution, you can safely browse, work, and enjoy your online activities on public Wi-Fi networks without worrying about cyber threats. Stay informed, stay secure, and make the most of the digital world with the protection of a VPN. Remember that your safety matters, and a VPN can be your strongest ally in the world of public Wi-Fi.
A virtual private network (VPN) is a mechanism for creating a secure connection between a computing device and a computer network, or between two networks, using an insecure communication medium such as the public Internet.[1]
A VPN can extend access to a private network (one that disallows or restricts public access) to users who do not have direct access to it, such as an office network allowing secure access from off-site over the Internet.[2]
The benefits of a VPN include security, reduced costs for dedicated communication lines, and greater flexibility for remote workers.[3]
A VPN is created by establishing a virtual point-to-point connection through the use of tunneling protocols over existing networks. This process involves encapsulating and encrypting the data to ensure secure transmission between two or more devices. A VPN available from the public Internet can provide some of the benefits of a private wide area network (WAN). These benefits include enhanced security, privacy, and the ability to bypass geographical restrictions, making it an essential tool for both individuals and businesses seeking to protect sensitive information and access restricted content while maintaining anonymity online. https://en.wikipedia.org/wiki/Virtual_private_network
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Tech
T-Mobile, MeetMo, and NantStudios Win Prestigious 2025 Lumiere Award for Revolutionary Las Vegas Grand Prix Formula One Fan Experience

The world of motorsports just took a giant leap into the future! Excitement is in the air as T-Mobile, MeetMo, and NantStudios have clinched the illustrious 2025 Lumiere Award for Best Interactive Experience from the Advanced Imaging Society. This accolade is in recognition of their pioneering immersive video experience for fans at the celebrated Las Vegas Grand Prix!
A Game-Changing Experience
Imagine being able to step into a race track from the comfort of your own home, enveloped in a 360-degree augmented reality tour of the circuit, all captured in breathtaking 12K footage. Thanks to this remarkable collaboration, fans can now enjoy a race experience like never before, made possible by a spectacular fusion of 5G technology, virtual production, and artificial intelligence.
“By combining T-Mobile’s 5G Advanced Network Solutions with our real-time collaboration technology, we’ve created an immersive experience that brings fans closer to the action than ever before,” expressed Michael Mansouri, CEO of Radiant Images and MeetMo. His enthusiasm is shared by many, as this innovative project is seen as a quantum leap forward in the way motorsports are experienced.
The Technical Marvel Behind the Magic
Highlighting their technological finesse, the project transformed over 1.5TB of data into a stunningly interactive experience in mere hours—a feat that previously would have taken months. The journey began at the NantStudios headquarters in Los Angeles, where more than 10 minutes of ultra-high definition, immersive sequences were blended with telemetry and driver animation data captured tirelessly by Radiant Images’ crews in Las Vegas.
The astounding speed and efficiency were primarily powered by T-Mobile’s robust 5G infrastructure, allowing for rapid data transfers back and forth, ensuring seamless integration into the interactive app that fans could access. Chris Melus, VP of Product Management for T-Mobile’s Business Group, proudly remarked, “This collaboration broke new ground for immersive fan engagement.”
The Power of 5G
The integration of T-Mobile’s advanced network solutions turned the Las Vegas Grand Prix into a case study of innovation. With real-time capture and transmission capabilities utilizing Radiant Images’ cutting-edge 360° 12K camera car, production crews were able to capture immersive video feeds and transmit them instantaneously over the 5G network. This meant remote camera control and instant footage reviews, drastically cutting production time and resources.
Moreover, the seamless AR integration—thanks to the creative minds at NantStudios and their work with Unreal Engine—allowed the blending of virtual and real-world elements. Fans were treated to augmented reality overlays displaying real-time data, such as dashboard metrics and telemetry, all transmitted through the reliable 5G network.
Future of Fan Engagement
As Jim Chabin, President of the Advanced Imaging Society, eloquently noted, the remarkable work at the Las Vegas Grand Prix has set new standards for interactive sports entertainment. The recognition given to this innovative team underscores their commitment to pushing the envelope in immersive experiences.
Gary Marshall, Vice President of Virtual Production at NantStudios, also highlighted the project’s importance: “This recognition underscores NantStudios’ legacy of pioneering real-time VFX and virtual production achievements, reaffirming our position as a leader in modern virtual production.”
The 2025 Lumiere Award is not just a trophy; it symbolizes the melding of creativity and technology in a way that elevates the fan experience to new heights. The collaboration between T-Mobile, MeetMo, and NantStudios exemplifies a thrilling future where motorsports become more accessible, engaging, and immersive. It’s a thrilling time to be a fan, and the development teams behind this innovation have truly set a new standard for content creators everywhere.
With such defining moments in sports entertainment, we can’t help but wonder what spectacular innovations lie ahead. Buckle up; it’s going to be a wild ride!
About the Companies
MeetMo
MeetMo.io is revolutionizing how creative professionals collaborate by combining video conferencing, live streaming, and AI automation into a single, intuitive platform. With persistent virtual meeting rooms that adapt to users over time, our platform evolves into a true collaborative partner, enhancing creativity and productivity. For more information please visit: https://www.meetmo.io
Radiant Images
Radiant Images is a globally acclaimed, award-winning technology provider specializing in innovative tools and solutions for the media and entertainment industries. The company focuses on advancing cinema, immersive media, and live production. https://www.radiantimages.com
T-Mobile
T-Mobile US, Inc.(NASDAQ: TMUS) is America’s supercharged Un-carrier, delivering an advanced 4G LTE and transformative nationwide 5G network that will offer reliable connectivity for all. T-Mobile’s customers benefit from its unmatched combination of value and quality, unwavering obsession with offering them the best possible service experience and indisputable drive for disruption that creates competition and innovation in wireless and beyond. Based in Bellevue, Wash., T-Mobile provides services through its subsidiaries and operates its flagship brands, T-Mobile, Metro by T-Mobile and Mint Mobile. For more information please visit: https://www.t-mobile.com
NantStudios
NantStudios is the first real time-native, full-service production house; re-imagined from the ground up to deliver exceptional creative results through next generation technologies like Virtual Production. For more information please visit: https://nantstudios.com
SOURCE MeetMo
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Tech
How close are quantum computers to being really useful? Podcast
Quantum computers could revolutionize science by solving complex problems. However, scaling and error correction remain significant challenges before achieving practical applications.
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Quantum computers have the potential to solve big scientific problems that are beyond the reach of today’s most powerful supercomputers, such as discovering new antibiotics or developing new materials.
But to achieve these breakthroughs, quantum computers will need to perform better than today’s best classical computers at solving real-world problems. And they’re not quite there yet. So what is still holding quantum computing back from becoming useful?
In this episode of The Conversation Weekly podcast, we speak to quantum computing expert Daniel Lidar at the University of Southern California in the US about what problems scientists are still wrestling with when it comes to scaling up quantum computing, and how close they are to overcoming them.
Quantum computers harness the power of quantum mechanics, the laws that govern subatomic particles. Instead of the classical bits of information used by microchips inside traditional computers, which are either a 0 or a 1, the chips in quantum computers use qubits, which can be both 0 and 1 at the same time or anywhere in between. Daniel Lidar explains:
“Put a lot of these qubits together and all of a sudden you have a computer that can simultaneously represent many, many different possibilities … and that is the starting point for the speed up that we can get from quantum computing.”
Faulty qubits
One of the biggest problems scientist face is how to scale up quantum computing power. Qubits are notoriously prone to errors – which means that they can quickly revert to being either a 0 or a 1, and so lose their advantage over classical computers.
Scientists have focused on trying to solve these errors through the concept of redundancy – linking strings of physical qubits together into what’s called a “logical qubit” to try and maximise the number of steps in a computation. And, little by little, they’re getting there.
In December 2024, Google announced that its new quantum chip, Willow, had demonstrated what’s called “beyond breakeven”, when its logical qubits worked better than the constituent parts and even kept on improving as it scaled up.
Lidar says right now the development of this technology is happening very fast:
“For quantum computing to scale and to take off is going to still take some real science breakthroughs, some real engineering breakthroughs, and probably overcoming some yet unforeseen surprises before we get to the point of true quantum utility. With that caution in mind, I think it’s still very fair to say that we are going to see truly functional, practical quantum computers kicking into gear, helping us solve real-life problems, within the next decade or so.”
Listen to Lidar explain more about how quantum computers and quantum error correction works on The Conversation Weekly podcast.
This episode of The Conversation Weekly was written and produced by Gemma Ware with assistance from Katie Flood and Mend Mariwany. Sound design was by Michelle Macklem, and theme music by Neeta Sarl.
Clips in this episode from Google Quantum AI and 10 Hours Channel.
You can find us on Instagram at theconversationdotcom or via e-mail. You can also subscribe to The Conversation’s free daily e-mail here.
Listen to The Conversation Weekly via any of the apps listed above, download it directly via our RSS feed or find out how else to listen here.
Gemma Ware, Host, The Conversation Weekly Podcast, The Conversation
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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Tech
Why building big AIs costs billions – and how Chinese startup DeepSeek dramatically changed the calculus
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Ambuj Tewari, University of Michigan
State-of-the-art artificial intelligence systems like OpenAI’s ChatGPT, Google’s Gemini and Anthropic’s Claude have captured the public imagination by producing fluent text in multiple languages in response to user prompts. Those companies have also captured headlines with the huge sums they’ve invested to build ever more powerful models.
An AI startup from China, DeepSeek, has upset expectations about how much money is needed to build the latest and greatest AIs. In the process, they’ve cast doubt on the billions of dollars of investment by the big AI players.
I study machine learning. DeepSeek’s disruptive debut comes down not to any stunning technological breakthrough but to a time-honored practice: finding efficiencies. In a field that consumes vast computing resources, that has proved to be significant.
Where the costs are
Developing such powerful AI systems begins with building a large language model. A large language model predicts the next word given previous words. For example, if the beginning of a sentence is “The theory of relativity was discovered by Albert,” a large language model might predict that the next word is “Einstein.” Large language models are trained to become good at such predictions in a process called pretraining.
Pretraining requires a lot of data and computing power. The companies collect data by crawling the web and scanning books. Computing is usually powered by graphics processing units, or GPUs. Why graphics? It turns out that both computer graphics and the artificial neural networks that underlie large language models rely on the same area of mathematics known as linear algebra. Large language models internally store hundreds of billions of numbers called parameters or weights. It is these weights that are modified during pretraining. https://www.youtube.com/embed/MJQIQJYxey4?wmode=transparent&start=0 Large language models consume huge amounts of computing resources, which in turn means lots of energy.
Pretraining is, however, not enough to yield a consumer product like ChatGPT. A pretrained large language model is usually not good at following human instructions. It might also not be aligned with human preferences. For example, it might output harmful or abusive language, both of which are present in text on the web.
The pretrained model therefore usually goes through additional stages of training. One such stage is instruction tuning where the model is shown examples of human instructions and expected responses. After instruction tuning comes a stage called reinforcement learning from human feedback. In this stage, human annotators are shown multiple large language model responses to the same prompt. The annotators are then asked to point out which response they prefer.
It is easy to see how costs add up when building an AI model: hiring top-quality AI talent, building a data center with thousands of GPUs, collecting data for pretraining, and running pretraining on GPUs. Additionally, there are costs involved in data collection and computation in the instruction tuning and reinforcement learning from human feedback stages.
All included, costs for building a cutting edge AI model can soar up to US$100 million. GPU training is a significant component of the total cost.
The expenditure does not stop when the model is ready. When the model is deployed and responds to user prompts, it uses more computation known as test time or inference time compute. Test time compute also needs GPUs. In December 2024, OpenAI announced a new phenomenon they saw with their latest model o1: as test time compute increased, the model got better at logical reasoning tasks such as math olympiad and competitive coding problems.
Slimming down resource consumption
Thus it seemed that the path to building the best AI models in the world was to invest in more computation during both training and inference. But then DeepSeek entered the fray and bucked this trend.
Their V-series models, culminating in the V3 model, used a series of optimizations to make training cutting edge AI models significantly more economical. Their technical report states that it took them less than $6 million dollars to train V3. They admit that this cost does not include costs of hiring the team, doing the research, trying out various ideas and data collection. But $6 million is still an impressively small figure for training a model that rivals leading AI models developed with much higher costs.
The reduction in costs was not due to a single magic bullet. It was a combination of many smart engineering choices including using fewer bits to represent model weights, innovation in the neural network architecture, and reducing communication overhead as data is passed around between GPUs.
It is interesting to note that due to U.S. export restrictions on China, the DeepSeek team did not have access to high performance GPUs like the Nvidia H100. Instead they used Nvidia H800 GPUs, which Nvidia designed to be lower performance so that they comply with U.S. export restrictions. Working with this limitation seems to have unleashed even more ingenuity from the DeepSeek team.
DeepSeek also innovated to make inference cheaper, reducing the cost of running the model. Moreover, they released a model called R1 that is comparable to OpenAI’s o1 model on reasoning tasks.
They released all the model weights for V3 and R1 publicly. Anyone can download and further improve or customize their models. Furthermore, DeepSeek released their models under the permissive MIT license, which allows others to use the models for personal, academic or commercial purposes with minimal restrictions.
Resetting expectations
DeepSeek has fundamentally altered the landscape of large AI models. An open weights model trained economically is now on par with more expensive and closed models that require paid subscription plans.
The research community and the stock market will need some time to adjust to this new reality.
Ambuj Tewari, Professor of Statistics, University of Michigan
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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