How Much Water Do You Actually Need to Drink Each Day? We Asked an Expert

Amazon's Prime Day is just around the corner, but savvy shoppers don’t have to wait—there are already over 105 live deals on everything from MacBooks to Kindles, TVs, and phones. Our editors have handpicked the best discounts so you can snag a bargain before the rush.

Some tennis players at Wimbledon are grumbling about the tournament's AI-powered line judges, claiming the tech is making bad calls. But critics argue the athletes might just be looking for someone to blame when things don't go their way—old habits die hard, even in the face of new tech.

Editor’s Note: This isn’t just about tennis—it’s a classic clash between tradition and innovation. If players keep distrusting AI, it could slow down tech adoption in sports, even when the systems are more accurate than humans. But if the tech really is flawed, that’s a whole other problem. Either way, the debate exposes how hard it is to change the game, literally and figuratively.

Walmart is rolling out a sweet deal for its Walmart Plus membership—slash the usual $98 annual fee in half for a limited time. But here’s the kicker: members get early access to the hotly anticipated Nintendo Switch 2, a perk Amazon Prime can’t match right now. Throw in free delivery, and it’s a solid play for gamers and bargain hunters alike.

Editor’s Note: This isn’t just another membership discount—it’s a strategic move by Walmart to lure shoppers away from Amazon, especially with the Nintendo Switch 2 as bait. If you’ve been on the fence about Walmart Plus, this deal (and the exclusive console access) might tip the scales. For Walmart, it’s a clever way to spike subscriptions while the hype around the Switch 2 builds.

Amazon's Prime Day is kicking off soon, and if you're looking for affordable steals, there are already plenty of early deals under $25—from handy tech gadgets to everyday essentials. This roundup highlights the best budget-friendly finds so you can shop ahead of the rush.

Katanemo Labs just dropped a new AI routing system that’s both smart and thrifty—it nails 93% accuracy in directing tasks between AI models without the usual headache (and cost) of retraining. Basically, it’s like a traffic cop for AI that learns on the fly, adapting to new models while keeping humans happy with its decisions.

Editor’s Note: Retraining massive AI models is expensive and slow, so a router that avoids that while staying accurate is a big deal. This could make AI systems cheaper to run and easier to update, which matters for everything from customer service bots to research tools. It’s a step toward AI that’s less brittle and more adaptable—something everyone in tech’s been chasing.