The Daily Index — Thursday, October 23, 2025 · TLDR Index

GENERAL

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qawolf.com

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port.io

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ENGINEERING MANAGERS SHOULD (SOMETIMES) WRITE CODE

Engineering managers should still write code because it helps keep their mental model of software development fresh. Staying completely away from code as a manager means letting your knowledge calcify around how things worked the last time you regularly wrote production code. The key is knowing when it is helpful versus when it becomes a bottleneck. It is fine to brush up on an intern's feature after they've moved on, but becoming the only person who can deploy releases is definitely a problem.

brethorsting.com · 5 min

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AI WORKERS ARE PUTTING IN 100-HOUR WORKWEEKS TO WIN THE NEW TECH ARMS RACE

Top AI researchers and executives are regularly working 80 to 100 hours a week. They see their work as critical to a seminal moment in history. Many are motivated by the intense competition with rivals and their own curiosity about model possibilities. Some are now multimillionaires, but they don't have time to spend their fortunes.

links.tldrnewsletter.com · 9 min

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BIG COMPANIES V. STARTUPS

Big companies and startups are both dysfunctional, just in different ways. Figure out what the relevant trade-offs are and what kind of dysfunction you want to sign up for. It's more important to have a manager who has your back, a team that works well together, and interesting projects. The difference between types of companies is smaller than the differences between companies of the same type.

danluu.com · 40 min

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KARPATHY IS WRONG. WRITE THAT POST, BUILD THAT SLIDE DECK!

Writing is one of the most powerful ways to build understanding because explaining something forces clarity.

world.hey.com · 4 min

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TRUMP ADMINISTRATION IN TALKS TO TAKE EQUITY STAKES IN QUANTUM-COMPUTING FIRMS

The Trump administration is expanding its interventions in what it sees as critical segments of the economy.

links.tldrnewsletter.com · 5 min

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GOOGLE PORTING ALL INTERNAL WORKLOADS TO ARM, WITH HELP FROM GENAI

Google's Axion-powered machines deliver up to 65% better price-performance and can be 60% more energy-efficient than x86 instances.

theregister.com · 4 min

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🍏 THE APPLE FACTORY: WHAT PERFECT COORDINATION FEELS LIKE

Apple's ecosystem is proof that interoperability is a design choice.

physical-ai.ghost.io · 6 min

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AMAZON UNVEILS AI-POWERED AUGMENTED REALITY GLASSES FOR DELIVERY DRIVERS

Amazon's AI-powered AR glasses help delivery drivers scan packages, follow turn-by-turn walking directions, and capture proof of delivery.

links.tldrnewsletter.com · 4 min

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TESLA PROFIT PLUNGES AS MUSK TURNS FOCUS TO ‘ROBOT ARMY'

Elon Musk has threatened to leave Tesla to pursue AI projects outside the company if a new pay package that could be worth as much as $1 trillion is not approved.

links.tldrnewsletter.com · 7 min