How reality may be a sum of all possible realities

PLUS: Apple, Google, and Microsoft Just Fixed Zero-Day Security Flaws, and more [View this email in your browser]( | [Manage newsletter subscriptions](newsletter=wir) [WIRED logo and a robot carrying a WIRED magazine]( [04.30.23](   [Illustration showing open windows, a lock, password and a security icon with several patches over it.]( [CRITICAL UPDATE | 4-MINUTE READ]( [Apple, Google, and Microsoft Just Fixed Zero-Day Security Flaws]( BY KATE O'FLAHERTY [Firefox gets a needed tune-up, SolarWinds squashes two high-severity bugs, Oracle patches 433 vulnerabilities, and more updates you should make now.](   [Wrench with ChatGPT logo as a bolt, being screwed into place]( [LANGUAGE CLASS | 3-MINUTE READ]( [How ChatGPT and Other LLMs Work—and Where They Could Go Next]( BY DAVID NIELD [Large language models like AI chatbots seem to be everywhere. If you understand them better, you can use them better.](   [Avocado Organic Mattress on a bed frame]( [BUYING GUIDE | 7-MINUTE READ]( [The Best Organic Mattresses (and Toppers)]( BY SCOTT GILBERTSON AND GEAR TEAM [These nontoxic beds are easier on the environment and your health—and they feel like a dream.](   [Multi-colored abstract web-like pattern with a red line running through the middle]( [FORMULA ONE | 7-MINUTE READ]( [How Reality May Be a Sum of All Possible Realities]( BY CHARLIE WOOD [Richard Feynman’s path integral is a powerful prediction machine and a philosophy. Physicists still struggle to figure out how to use it, and what it means.](   See what our editors are raving about. Get WIRED’s Gift Guide newsletter—a roundup of [the best seasonal recommendations from WIRED editors](—delivered straight to your inbox. Tap the link below to join the mailing list and view our latest guides. [SIGN ME UP](   [GET WIRED]( [Get WIRED for just $29.99 $5. Includes the print edition plus editor in chief Gideon Lichfield's column, System Update.]([Subscribe now.](   [Ring Car Camera]( [PRODUCT REVIEW | 5-MINUTE READ]( [Ring’s Car Cam Is Virtually Useless for Most People]( BY ADRIENNE SO [This new dash camera is more suited for delivery or rideshare drivers—and even then, it might not be worth the inconvenience.](   [Abstract illustration above a keyboard in a purple background]( [WIRED30 | 4-MINUTE READ]( [AI Isn't Going to Reinvent the Alphabet Anytime Soon]( BY GEOFFREY BUNTING [AI doesn't understand how humans read well enough to design type on its own. But it can help typographers make their work more accessible.](   [Pink fur handcuffs on a fluffy white blanket]( [PRIVATE CHAT | 4-MINUTE READ]( [How to Talk to Your Partner About Sex]( BY JAINA GREY [Open communication can be challenging—but expressing desires and boundaries is good for everyone. Here’s how to get started.](   [Synology RT6600AX router]( [WI-FI WIZARD | 13-MINUTE READ]( [Shopping for a Router Sucks. Here’s What You Need to Know]( BY SIMON HILL [How much speed do you need? And what's a MU-MIMO? We decipher the jargon and explain what to look for.](   [Roku Express 4k and Roku remote]( [BUYING GUIDE | 6-MINUTE READ]( [How to Pick the Right Roku for Your TV]( BY MEDEA GIORDANO AND JEFFREY VAN CAMP [The company has a dizzying array of streaming sticks, boxes, and soundbars to choose from, but don’t worry—these are the ones to buy.]( [(image) WIRED Logo]( [(image) WIRED on Facebook]( [(image) WIRED on Twitter]( [(image) WIRED on Instagram]( [(image) WIRED on LinkedIn]( [(image) WIRED on YouTube]( [Podcasts]( Have questions or comments? [Reply to this email](mailto:hello@wired.com?subject=WIRED%20Newsletter%20Questions,%20Comments%20or%20Feedback). This email was sent to you by WIRED. To ensure delivery to your inbox (not bulk or junk folders), please add our email address, wired@newsletters.wired.com, to your address book. View our [Privacy Policy]( [Unsubscribe]( or [Manage your newsletter subscriptions](newsletter=wir) Copyright © Condé Nast 2023. One World Trade Center, New York, NY 10007. All rights reserved.