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<div style="display: none; max-height: 0px; overflow: hidden;">SpaceX's IPO is expected to set a record for the biggest stock debut ever and could make its founder, Elon Musk, the world's first trillionaire </div>
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<h1><strong>TLDR <span id="date">2026-05-21</span></strong></h1>
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SpaceX's IPO is expected to set a record for the biggest stock debut ever and could make its founder, Elon Musk, the world's first trillionaire. The company is aiming to go public in June on Nasdaq under the ticker symbol SPCX. The company lost $4.9 billion last year on revenue of $18.7 billion. This year, in the first quarter, SpaceX lost $4.3 billion on $4.7 billion of revenue. The financials show an established business launching satellites and astronauts to space, though it is still unprofitable.
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OpenAI has been working with bankers to prepare to file for an IPO in the coming days or weeks. The company aims to be ready to go public as early as September. Its plans remain fluid and could still change. The company still has to overcome concerns about whether it can generate enough revenue to support its spending commitments, among a host of other challenges. It recently missed multiple internal revenue and user targets.
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<strong>Chickens without eggs? De-extinction company creates artificial egg (9 minute read)</strong>
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Biotech startup Colossal has developed an artificial eggshell that allows almost the entire avian development process to occur. Its device keeps the entire contents of an egg intact so the embryo can develop normally. The transfer of the egg contents can take place before the circulatory system forms. The artificial container allows scientists to make changes to the embryo more easily and makes it easier to film and track changes to cell movements and rearrangements.
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<strong>Artificial Womb for Growing Mammals Is at 'One-Yard Line', Says Colossal CEO (4 minute read)</strong>
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De-extinction startup Colossal claims it has almost finished building an artificial womb capable of supporting mammal development. The company still needs to reproduce the chemical signals between early development stages, but the artificial womb platform already achieves a 100% development rate. The system is not part of Colossal's late 2028 woolly mammoth birth plans. The technology could eventually have implications beyond deextinction. The company plans to open-source all of its technologies for conservation.
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Code agents have their own failure modes, appetite for context, and demands on what counts as a well-organized repository. Companies need to take this seriously as the work to make a repository ergonomic for agents is bigger than expected, and the principles are non-obvious. However, the payoff is substantial. This article looks at how Basis made its codebase ergonomic for agents in three months using principles rooted in verifiability, interoperability, and canonical context.
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<strong>Gemini 3.5 Flash Developer Guide (14 minute read)</strong>
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Gemini 3.5 Flash is now generally available. This guide contains an overview of improvements, API changes, and migration guidance for the model. Gemini 3.5 Flash features Thinking, structured outputs with tools, multimodal function responses, code execution with images, and combined tool use, but not Computer Use. It delivers sustained frontier performance in agentic execution, coding, and long-horizon tasks at scale.
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<div style="text-align: center;"><strong><h1>Miscellaneous</h1></strong></div>
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<strong>How I Choose Which Cloudflare Employees to Replace With AI (5 minute read)</strong>
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Cloudflare laid off more than 20% of its workforce two weeks ago, many of whom were responsible for various measuring tasks. The company now has better tools to measure exactly how the business is performing. Cloudflare has a record number of open positions, and it expects its number of employees to grow. AI is allowing the company to better measure itself so the humans on its teams can focus on creating and capturing value by building and selling.
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<strong>Jeff Bezos describes his $38B startup Prometheus for the first time: ‘Nothing to do with robotics' (2 minute read)</strong>
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Jeff Bezos' startup, Project Prometheus, is developing an artificial general engineer and building next-generation tools for designing physical objects, similar to a very modern version of Computer-Aided Design. The tools Prometheus is building will help companies like Blue Origin immensely. Project Prometheus launched with $6.2 billion in funding and has roughly 120 employees from firms including OpenAI, DeepMind, Meta, and xAI. It was previously incorrectly reported to be an AI robotics company.
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<h1><strong>Quick Links</strong></h1>
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<strong>Build AI to help patients navigate healthcare (Sponsor)</strong>
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Sage Care is rebuilding healthcare access with AI voice agents and smart routing so patients get care faster. The founders (ex-Apple, ex-Uber with successful previous exits) are hiring entrepreneurial AI engineers to help scale this mission, <a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fsage.care%2Fcareers%3Futm_source=tldr/2/0100019e4a25a72f-367e4353-5849-4b28-857a-a53488c18926-000000/k6jqJsmdosYvkaQaTdg3_phSLH15CiZ4e5hBchsXjDQ=452" rel="noopener noreferrer" target="_blank"><span>learn more here</span></a>.
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<strong>Zuckerberg warns ‘success isn't a given' after laying off 10% of Meta (3 minute read)</strong>
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He has assured workers that there shouldn't be any additional cuts in 2026.
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<strong>Coding is solved? Software is not (11 minute read)</strong>
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There are still moments in the development loop where humans are required.
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<strong>GitHub confirms breach of 3,800 repos via malicious VSCode extension (3 minute read)</strong>
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GitHub has since removed the unnamed trojanized extension from the VS Code marketplace.
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<strong>Reach 7 million engaged tech professionals (Sponsor)</strong>
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Ads get ignored on social media but not in TLDR! Reach developers, PMs, marketers, founders and other tech leaders where they actually pay attention. <a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fadvertise.tldr.tech%2F%3Futm_source=tldr%26utm_medium=newsletter%26utm_campaign=quicklinks05212026/2/0100019e4a25a72f-367e4353-5849-4b28-857a-a53488c18926-000000/zXeANKahBf5UUO0U0fb_KNu_VQu1JztuwrKGvZeG2qQ=452" rel="noopener noreferrer nofollow" target="_blank"><span>Learn more about sponsorship opportunities.</span></a>
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<strong>New iPhone Ultra leaks cover release timing, display breakthrough, more (2 minute read)</strong>
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Apple's first foldable iPhone is reportedly in trial production, but there are issues with its hinge that are causing an infinite delay to the production process.
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<strong>Years-long fight over users' right to tweak smart TV software heads to trial (16 minute read)</strong>
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A jury in California will decide in August whether Vizio must provide the code for its Linux-based smart TV operating system to the Software Freedom Conservancy and any Vizio TV owner who wants it.
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<strong>E-Hiking Is Here. You Can Tell by My 1,000-Watt Hips (6 minute read)</strong>
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Personal exoskeletons, once reserved for military, heavy industry, and mobility rehabilitation, are now light and affordable enough for regular people who want to feel superhuman.
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