TLDR 2026-04-21

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Big Tech & Startups

The Rise of Apple's New CEO: A Hardware Expert Takes Over in the AI Era (7 minute read)

John Ternus will become Apple's new CEO after a 25 year career on September 1. Current CEO Tim Cook will become executive chairman. Ternus is a mechanical engineer by background and he most recently led hardware engineering for all of Apple's products. This article takes a look at who Ternus is and his history at Apple.

Amazon to invest up to another $25 billion in Anthropic as part of AI infrastructure deal (4 minute read)

Amazon has agreed to invest up to $25 billion in Anthropic as part of an expanded agreement to build out AI infrastructure. The investment includes $5 billion into Anthropic now, with up to $20 billion tied to certain commercial milestones. Anthropic has committed to spending more than $100 billion on Amazon Web Services technologies over the next 10 years. It has secured up to 5 gigawatts of capacity for training and deploying its models.

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Science & Futuristic Technology

What Physical ‘Life Force' Turns Biology's Wheels? (14 minute read)

This article tells the story of how scientists figured out how the flagellar motor worked. The flagellar motor was discovered by Howard Berg, who set out in the early 1970s to apply his training in physics to understand how bacteria move. Bacteria move quickly, so Berg had to invent and build an automatic tracking microscope to keep them in view. He hypothesized how the mechanism worked 50 years before scientists discovered how the motor works.

Quantum Computers Are Not a Threat to 128-bit Symmetric Keys (23 minute read)

Both AES-128 and SHA-256 are safe against quantum computers. No symmetric key sizes have to change as part of the post-quantum transition. Almost all experts agree on this. The misconception is usually based on a misunderstanding of the applicability of a quantum algorithm called Grover's.

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Programming, Design & Data Science

TLDR is hiring a Senior Software Engineer, Applied AI ($250k-$350k, Fully Remote)

TLDR's Applied AI team is tasked with making every process at TLDR legible to code, runnable by anyone, and composable into larger workflows. Join a small, fast moving team using the latest AI tools with an unlimited token budget. Learn more.

The AI engineering stack we built internally — on the platform we ship (14 minute read)

93% of Cloudflare's R&D organization used AI coding tools powered by infrastructure that they built on their own platform. The team built its own MCP servers, access layer, and AI tooling necessary for agents to be useful at Cloudflare. This has had a significant impact on the number of merge requests made. The four week rolling average has climbed from around 5,600 per week to over 8,700. This post looks at how Cloudflare achieved this.

Jujutsu megamerges for fun and profit (13 minute read)

Jujutsu megamerges let developers work on many different streams of work simultaneously. This article provides an in-depth explanation of how they work. Megamerges are a way of showing developers the whole picture and are not really meant to be pushed to remote. Developers will still want to publish branches individually as usual.

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Miscellaneous

Random thoughts while gazing at the misty AI Frontier (10 minute read)

This post covers many topics in the AI space, including the percentage of GDP attributed to AI revenue in 2030, compute ceilings, and harnesses. It also covers anti-AI regulation and how violence against the technology will increase.

California Accuses Amazon of Price Fixing in Legal Filing (5 minute read)

Amazon reportedly pressured major brands to ask competing retailers to raise prices on certain products. California is suing Amazon over allegations that the retailer harms competition and increases prices that consumers pay online. The lawsuit claims that Amazon punished sellers for offering lower prices on other websites. The trial is scheduled to begin next year.

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Quick Links

Microsoft Build 2026, June 2-3, San Francisco. (#MicrosoftPartner) (Sponsor)

Learn from the teams building and scaling the next generation of AI. 2 days. No fluff. Hands-on, practical learning. Join us. Request to attend today.

Apple to Focus Hardware Team on Five Areas Under Johny Srouji (3 minute read)

Apple's newly combined hardware engineering and hardware technologies division will be organized into hardware engineering, silicon, advanced technologies, platform architecture, and project management divisions.

GitHub halts new Copilot signups amid soaring usage and rising costs (2 minute read)

GitHub has paused new signups for GitHub Copilot Pro, Pro+, and Student plans.

Google builds elite team to close the coding gap with Anthropic (2 minute read)

Google DeepMind has formed a dedicated team of researchers and engineers to sharpen the coding capabilities of its Gemini models.

Your Future Phone Will Have a Battery You Can Swap at Home — Thanks to the EU (2 minute read)

The EU has passed a law that requires phones to have batteries that can be easily changed by users at home using basic tools.

Google's AI adoption (3 minute read)

DeepMind engineers use Claude as a daily tool, but most of the rest of Google does not.

ggsql (GitHub Repo)

ggsql allows developers to write queries that combine SQL data retrieval with visualization specifications in a single, composable syntax.

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Thanks for reading,
Dan Ni & Stephen Flanders

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Apple's new CEO 📱, Anthropic AWS $25B deal 💰, megamerges 🧑‍💻