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TLA+ advocate pushes back on claims formal methods will fix AI coding

Following Claude Code creator Boris Cherny's comment that the Opus model used TLA+ to detect race conditions, online discussion has surged around formal verification as a fix for agentic software bugs. A longtime TLA+ educator and advocate argues this enthusiasm is overblown, noting that formal verification only checks properties that engineers explicitly define, and many important properties can't even be expressed in TLA+.

Harvard study finds transplanted hearts adapt in age to recipient's body

Harvard medical researchers report that donor hearts significantly older or younger than their recipients begin to change over time, taking on biological characteristics closer to the age of the body they're transplanted into. The findings suggest transplanted organs are not fixed in their original biological age but can shift after implantation.

Eric Lengyel dedicates Slug text-rendering patent to public domain

Eric Lengyel, who published the Slug GPU text-rendering algorithm in 2017 and patented it in 2019, has released that patent into the public domain as of March 17, 2026. Slug renders font glyphs directly from their vector outlines in the fragment shader, avoiding texture atlases or per-frame tessellation. The patent's release prompted the developers behind Slughorn, a C++20 implementation of the technique, to publish a detailed explanation of how it and rival GPU text-rendering methods work.

WhatsApp launches PIN-protected parental controls for teen accounts

WhatsApp is rolling out parental controls letting guardians manage who teens interact with, including channel usage, Status visibility, group additions, and profile picture access. Parents can also receive notifications about teens' group activity and set Meta AI content restrictions, choosing between a default 13+ setting or a stricter 'Limited Content' mode that disables features like incognito chat. All settings require a parent-set PIN to change, and WhatsApp says messages and calls remain end-to-end encrypted.

Facebook urine-therapy groups say AI chatbots can be coaxed into endorsing the practice

Members of Facebook groups devoted to urine therapy, a pseudo-scientific practice of drinking or applying urine to treat ailments, report that AI chatbots initially resist endorsing the practice but can be manipulated into doing so. Users in a 45,000-member group describe prompting tools like ChatGPT and Google Gemini with terms such as 'esoteric' to bypass built-in safeguards and elicit favorable responses about urine's supposed medicinal benefits.

Reddit tightens Old Reddit access, will end RSS support Nov 13

Reddit is restricting the classic 'Old Reddit' interface to users who have logged in and used it within the past six months, building on a recent requirement that users log in at all to access it. The company also plans to discontinue RSS feed support on November 13, citing large-scale scraping and automated abuse, and is pointing moderators toward alternatives like Discord Relay.

Amazon redesigns Fire TV Stick 4K remote and speeds up the device

Amazon unveiled a new Fire TV Stick 4K on Wednesday as part of its fall hardware lineup, featuring a slimmer body, USB-port charging, and performance Amazon says is 20-40% faster than rival streamers. The device ships with a redesigned voice remote that drops the blue Alexa button for a subtler microphone key, adds a touch-distinguishable home button, a recessed power button, a flatter D-pad, and a new favorites button.

T-Mobile launches 10% lifetime referral discount via T-Life app

T-Mobile has introduced a new referral program allowing current subscribers to give friends and family a 10% discount on all voice lines for the life of their account, accessible through the Benefits tab in the T-Life app. Unlike the carrier's employee-only 20% Insider Codes, this offer is open to all customers and can be combined with existing trade-in or Keep & Switch promotions. New customers must port a number from a rival carrier or select MVNO within 14 days of checkout to qualify.

Developers port Valve's new Arm-based SteamOS to Android gaming handhelds

Valve released an Arm version of SteamOS following its Snapdragon-powered Steam Frame headset, and developers hashtagbasit and MaSieS4Fun quickly adapted it to run on Android handhelds. The port can be installed from a microSD card on devices including the AYN Odin 2 family, AYN Thor, Retroid Pocket 6, and several AYANEO Pocket models, letting users try SteamOS without wiping internal storage. Android Authority tested the MaSieS4Fun build on an AYN Odin 2 Portal and reported it booted and set up successfully after first installing the Rocknix ABL bootloader.

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