OpenAI Signal leaks 💬, Alexa Tablet 💻, formal software verification 👨💻
TLDR newsletter roundup for October 23.
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TLDR 2026-10-23Together WithMeeting notes you don't have to clean up, plus up to 12 months of Wispr Flow free (Sponsor)Your follow-ups are only as good as your meeting notes. Wispr Flow Notetaker captures the meeting, then takes a second pass over the audio so names and terms come out right. Less cleanup, better notes.Paying for an AI meeting notetaker? If your plan qualifies, switch to Wispr Flow and we cover the time left on it with Wispr credit, plus 3 bonus months. Up to 12 months free. Voice dictation in every app is included.Enter your email and 3 months start today. Send your receipt to claim the rest.Claim your free months | See if your plan qualifies📱Big Tech & StartupsThe Signal Chats That Cost OpenAI Researchers Their Jobs (13 minute read)Three OpenAI safety researchers were fired after security officers discovered Signal chats with disappearing messages turned on on their personal devices. OpenAI claimed the researchers were fired for violating clear policies for handling sensitive information and not for raising safety concerns or speaking out. The researchers had spent recent months at the company pushing for more industry collaboration on safety. They claim their firings will serve as an excuse for OpenAI to close a channel to independent third-party insight.Amazon's New Tablet Is a Credible iPad Rival for Much Less Money (11 minute read)The Alexa Tablet lineup offers a more open approach to software than Amazon's previous Fire brand that lets consumers use the devices like any other Android tablet. Users can download apps from the Google Play Store and access popular services like Gmail and YouTube. Amazon previously restricted access to its own app marketplace. The 12-inch Alexa Tablet Pro is well constructed and has a smooth 12-hertz display, making it competitive with Apple's iPads.🚀Science & Futuristic TechnologySpaceX in Talks to Access 80,000 Cell Sites for New Network (4 minute read)SpaceX is in talks with Crown Castle Inc., one of the largest owners of cellular towers in the US, as part of its plans to secure a minimum of 80,000 cell sites across the country. Crown Castle is likely also in talks with Amazon and other satellite-based telecom providers regarding leasing deals. Elon Musk has openly discussed creating a standalone wireless carrier from scratch. SpaceX recently acquired low-band spectrum and has received approval to launch 15,000 satellites to provide mobile service directly to phones.Moderna and Merck say their mRNA …