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
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TLDR
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TLDR 2026-05-21
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BIG TECH & STARTUPS
THE SECRETS REVEALED IN SPACEX'S IPO FILING (9 MINUTE READ) [5]
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.
OPENAI IS PREPARING TO FILE FOR AN IPO VERY SOON (7 MINUTE READ) [6]
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.
🚀
SCIENCE & FUTURISTIC TECHNOLOGY
CHICKENS WITHOUT EGGS? DE-EXTINCTION COMPANY CREATES ARTIFICIAL EGG
(9 MINUTE READ) [7]
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.
ARTIFICIAL WOMB FOR GROWING MAMMALS IS AT 'ONE-YARD LINE', SAYS
COLOSSAL CEO (4 MINUTE READ) [8]
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.
💻
PROGRAMMING, DESIGN & DATA SCIENCE
THE CONTEXT LAYER FOR MODERN ENGINEERING TEAMS (SPONSOR) [9]
Agents can generate code. Getting it right for your system, team
conventions, and past decisions is the hard part. Unblocked is the
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actionable context, so engineers move faster and agents stay on track.
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MAKING OUR MONOREPO ERGONOMIC FOR AGENTS (21 MINUTE READ) [10]
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.
GEMINI 3.5 FLASH DEVELOPER GUIDE (14 MINUTE READ) [11]
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.
🎁
MISCELLANEOUS
HOW I CHOOSE WHICH CLOUDFLARE EMPLOYEES TO REPLACE WITH AI (5 MINUTE
READ) [12]
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.
JEFF BEZOS DESCRIBES HIS $38B STARTUP PROMETHEUS FOR THE FIRST TIME: ‘NOTHING TO DO WITH ROBOTICS' (2 MINUTE READ) [13]
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.
⚡
QUICK LINKS
BUILD AI TO HELP PATIENTS NAVIGATE HEALTHCARE (SPONSOR) [14]
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, learn more here [14].
ZUCKERBERG WARNS ‘SUCCESS ISN'T A GIVEN' AFTER LAYING OFF 10% OF
META (3 MINUTE READ) [15]
He has assured workers that there shouldn't be any additional cuts in
2026.
CODING IS SOLVED? SOFTWARE IS NOT (11 MINUTE READ) [16]
There are still moments in the development loop where humans are
required.
GITHUB CONFIRMS BREACH OF 3,800 REPOS VIA MALICIOUS VSCODE EXTENSION
(3 MINUTE READ) [17]
GitHub has since removed the unnamed trojanized extension from the VS
Code marketplace.
REACH 7 MILLION ENGAGED TECH PROFESSIONALS (SPONSOR) [18]
Ads get ignored on social media but not in TLDR! Reach developers,
PMs, marketers, founders and other tech leaders where they actually
pay attention. Learn more about sponsorship opportunities. [18]
NEW IPHONE ULTRA LEAKS COVER RELEASE TIMING, DISPLAY BREAKTHROUGH,
MORE (2 MINUTE READ) [19]
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.
YEARS-LONG FIGHT OVER USERS' RIGHT TO TWEAK SMART TV SOFTWARE HEADS
TO TRIAL (16 MINUTE READ) [20]
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.
E-HIKING IS HERE. YOU CAN TELL BY MY 1,000-WATT HIPS (6 MINUTE READ)
[21]
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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Dan Ni [28] & Stephen Flanders [29]
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