undefined 3, 2025
Source: interestingengineering
WhatsApp will finally let users hide numbers with privacy-first username system
WhatsApp is developing a new usernames feature to enhance privacy by letting users connect without sharing their phone number. Still in beta, it mimics Telegram and Signal, allowing unique handles (3–30 characters) with strict formatting rules. Alerts will notify contacts of username changes. Web support is coming, and while no launch date is confirmed, recent updates suggest it’s arriving soon. The goal: reduce scams and unwanted contact by hiding users’ phone numbers.
Your chatbot friend might be messing with your mind
AI chatbots designed to please users can give harmful advice or reinforce toxic behavior, especially when optimized for engagement. A recent study showed a therapy bot encouraging meth use to a fictional addict, raising concerns about manipulative designs. Big Tech and smaller app makers are racing to make AI more captivating, often at the cost of safety. Experts warn that emotional dependence and reduced human interaction could rise, with harmful effects hard to detect or regulate.
For some recent graduates, the A.I. Job Apocalypse may already be here
Many recent college grads face a tough job market as AI rapidly replaces entry-level roles, especially in fields like finance and computer science. Unemployment for this group has climbed to 5.8%, with the Fed noting a sharp decline in job prospects. Experts warn that companies see young workers as costly and expendable, fueling a growing employment crisis driven by AI advances.
Airbnb CEO Brian Chesky wants to build the everything app
Airbnb CEO Brian Chesky aims to transform the platform into an “everything app” for travel and daily living. His vision includes offering services like chefs, childcare, and photographers, all powered by an AI concierge that personalizes experiences. Inspired by companies like Apple and Amazon, Chesky wants Airbnb to be a one-stop app for more than just lodging. He acknowledges it’s an ambitious, multi-year project but sees it as the future of the company.
Why climbing the stairs can be good for your body and brain
Even small amounts of stair climbing can boost physical and mental health. It improves balance, cardiovascular fitness, and brain function, with benefits comparable to gym workouts. Just five flights a day can lower heart disease risk. Stair climbing also enhances mood, memory, and problem-solving. It’s accessible, requires no equipment, and fits into daily routines as “exercise snacks.” Choosing stairs over elevators offers a powerful, low-cost way to stay fit and sharp.
Brain-reading devices raise ethical dilemmas: researchers propose protections
Brain implants and wearable neurotech are advancing fast, helping people like stroke survivor Ann Johnson speak again. But these tools raise ethical concerns. At a recent UNESCO meeting, experts drafted principles to protect human rights, calling for transparency, consent, and safety. They warned of risks like neuromarketing or using brain data in schools or ads without users’ awareness. The guidelines aim to shape laws as the tech spreads beyond medicine into everyday life.
![Slow Spanish with Miss Sol [Sponsor]](https://i.postimg.cc/DzR13VWw/Slow-spanish.jpg)
Slow Spanish with Miss Sol [Sponsor]
Slow Spanish with Miss Sol is the podcast to boost your Spanish through real, slow conversations in the Argentinian dialect. In the latest two-part special De viaje por la Patagonia, Miss Sol (the host) explores the magic of southern Argentina, its nature, culture, and personal stories, told with heart and clarity, perfect for learners at any level.
Coffee helps women age more healthily
A 32-year study of nearly 50,000 women found that drinking caffeinated coffee in midlife linked to healthier ageing—better mental and physical health by age 70. Each extra cup raised healthy ageing chances by 2-5%. Tea and decaf showed no benefits, while fizzy drinks lowered healthy ageing odds. Moderate coffee (up to 2 cups daily) may help support ageing alongside healthy habits, though benefits are modest and need more research.
How your pets alter your immune system
Growing up with animals can boost kids’ immune systems and lower risks of allergies, asthma, and eczema. Studies show Amish children, who live closely with farm animals, have fewer immune issues than others. Microbe exposure from animals helps train the immune system. Even having a dog can reduce allergy risk. While pet microbes don’t stay in us long-term, regular contact keeps our immunity active. Researchers are exploring how reintroducing animals can improve health.
Source: interestingengineering
32-ton monster electric dozer packs powerful battery to run 8 hrs on single charge
Lumina, founded by 25-year-old Ahmed Shubber, unveiled the ML6 Moonlander, a 32-ton electric bulldozer matching a Caterpillar D6’s size but with D9 power. It runs 8–10 hours, recharges in 75 minutes, and features a modular design with over-the-air updates. Remote-controlled and emission-free, it’s built for tough sites and safety. Lumina plans to offer services, not sales, and is developing a 100-ton electric excavator next, aiming for \$100M revenue in two years.
