The Daily Index — Wednesday, September 23, 2026 · TLDR Index

PROGRAMMING, DESIGN & DATA SCIENCE

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BUG BLINDNESS

Some bugs give normal users such a bad experience that they tell their friends about it. Developers and advanced users can be blind to these bugs because they're used to performing the non-intuitive workarounds required to get around them. Humans have a high ability to ignore the negatives in things they like. Being open to criticism can help developers notice more flaws in their work.

danluu.com · 35 min

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DEFENSIVE DRIVING FOR YOUR CAREER

To have a positive career, you need to be appropriately recognized and rewarded for your work. Take public credit in a way that isn't obnoxious or wasteful. Don't let anyone lie about you, and beware of people who think you got lucky. Maintain leverage at all times - leverage mainly comes from your ability to walk a valuable asset (your labor) out the door.

blog.staysaasy.com · 10 min

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THE PLUNGING PRICE OF THOUGHT

The cost of a given level of AI performance has fallen an average of around 47% per quarter over the past three years. AI spending can still remain high despite falling prices. Lower prices allow for more agents to be run. Also, AI's ability keeps rising, and the price of harder tasks is higher.

epoch.ai · 54 min

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See how it works

Summary unavailable

business.doordash.com

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SHUFFLING THE DECK CHAIRS: XBOX CONTINUES ITS “RESET” WITH DRAMATIC RESTRUCTURING

Xbox has announced a radical restructuring of its internal studios designed to reduce the independence of some of its teams.

arstechnica.com · 3 min

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IT'S RAINING BOXES: AMAZON DRONES OVERWHELM A TEXAS SUBURB

Those living closest to the Amazon flight paths are hearing constant noise from the drones.

links.tldrnewsletter.com · 9 min

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MYSTERIES OF AI GENERALIZATION

We still don't understand what's going on with AI generalization.

astralcodexten.com · 15 min

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THE MUNDANITY OF EXCELLENCE, SMALL WINS, AND WHY YOU SHOULD FIX BUGS BEFORE WRITING NEW FEATURES

If you don't fix your bugs, your code will be built on an unstable foundation.

probablydance.com · 8 min

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AI WILL WORSEN OUR ESTIMATES OF GDP

AI will make GDP estimation difficult because it is hard to measure quality.

policygradients.thefai.org · 22 min

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ANALYZING JEV, A NEW AI MODEL

Jev is a close relative of LLMs, but it is actually more similar to the BERT series of models, which are used for classification, not generation.

blog.senko.net · 7 min