Hacker News: Front Page • 2026-08-15 22:15

Triple Product Rule of Partial Derivatives

Article URL: https://en.wikipedia.org/wiki/Triple_product_rule Comments URL: https://news.ycombinator.com/item?id=49314790 Points: 4 # Comments: 0

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DEV Community • 2026-08-15 22:14

"Power BI Error: The Key Didn't Match Any Rows in the Table"

tags: powerbi, dax, troubleshooting, tutorial canonical_url: https://pbidocs.com/blog/key-didnt-match-any-rows-error The full error reads: The key didn't match any rows in the table This is the opposite problem from a duplicate value error. That one means LOOKUPVALUE() (or a relationship) found too many matching rows. This one means it found zero — the search value you gave it...

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DEV Community • 2026-08-15 22:14

I Ran 50 Emails Through AI Agents. 12 SMTP Bounces Hit.

ai, #api, #security, #sideprojects The 50-email experiment On August 12, I handed an AI agent a CSV of fifty email addresses and an SMTP tool. Thirty-eight minutes later, twelve of them had bounced. I wasn't trying to break anything. I was testing whether a local agent could handle a simple outreach task end-to-end: read a list, draft a short note, send it. The model I used ...

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Hacker News • 2026-08-15 22:11

Show HN: Bribes.fyi – Compare bribes statistics department wise

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Hacker News: Front Page • 2026-08-15 22:08

Engineers will do anything to avoid learning from history

Article URL: https://horn.gg/blog/engineers-will-do-anything-to-avoid-learning-from-history/ Comments URL: https://news.ycombinator.com/item?id=49314744 Points: 12 # Comments: 5

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DEV Community • 2026-08-15 22:06

I Built a Production Job Scraper in 4 Days — Here's What I Learned

I spent the last 4 days building a multi-site job scraper. Not a toy project — an actual production tool that runs on Apify and works reliably. This is what I learned. The Problem I was manually checking LinkedIn and government job portals every week for Singapore IT roles. 20-30 minutes each time. Repetitive, soul-crushing, easy to forget. I kept thinking: there has to be a bette...

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DEV Community • 2026-08-15 22:05

RESTful APIs

First, what is the difference between RESTful APIs and REST APIs? REST API: Used for simple projects and doesn't require a complex system. It offers flexibility and is easy to implement, especially for smaller applications or quick prototypes. Based on REST principles, but not strictly following all constraints. Might use POST or GET for all data transfers. Can represent resources in various for...

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DEV Community • 2026-08-15 22:04

Retry budgets by language: Python, Go, and JavaScript

Originally published on Loop & Retry — field notes on building LLM agents that survive production. The retry-budget argument is language-independent: your retry multiplier is set by how you recover, not by how often you fail, and a per-call cap bounds a call but never a run or a fleet of workers. That's the theory, grounded in the $200 cost of nested caps that multiplied across layers. The th...

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DEV Community • 2026-08-15 22:02

QH256 and the K501 Information Space - Evolutionary Reference Definition v2.0

QH256 and the K501 Information Space Introduction, Development Context, Research Motivation, and Publication Guide Version: 1.0 Date: 15 August 2026 Author and developer: Patrick R. Miller (alias: Iinkognit0) Project: K501 Information Space Publication context: Companion introduction for Zenodo and related scholarly dissemination 1. Introduction The present docum...

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newest submissions : multi • 2026-08-15 22:01

NetLimiter's database silently grew to 60 GB, I barely even use the app

Posting this as a heads up for anyone who has NetLimiter installed and forgot about it. I only found out because I was running FolderSizes to see what was eating my disk. I only ever opened NetLimiter occasionally, when I needed to cap an app's speed. Imagine my surprise finding this file on my drive 59.6 GB -C:\ProgramData\Locktime\NetLimiter\4\Stats\nlstatsV4.db This actually hurt, because I r...

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DEV Community • 2026-08-15 21:55

AI Hallucinations Are Still Not Solved

With every major model release comes the same reassuring note: hallucinations are down, reliability is up, the fabrication problem is largely behind us. And every release, within days, someone posts a screenshot of the new model inventing a citation, a quote, a case, a statistic or a person with total, serene confidence. The rate improves. The category does not disappear. It is worth understanding...

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DEV Community • 2026-08-15 21:55

Why Every AI Startup Looks the Same

Spend an afternoon browsing new AI startups and a strange déjà vu sets in. The landing pages rhyme. There is a dark hero section, a gradient somewhere between indigo and violet, a little sparkle or star icon denoting Intelligence, a headline promising to let you “chat with” your documents or data or customers, and a demo video with the same upbeat, slightly anonymous soundtrack. You could swap the...

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DEV Community • 2026-08-15 21:54

Why AI Benchmarks Mean Less Than You Think

Every model launch comes with a chart. Bars, usually, or a spider diagram, showing the new model edging past its rivals on a row of benchmarks with acronyms most people cannot expand. The bar is taller. The press writes it up as a leap. And within a week, users report that the new state-of-the-art model is, for their actual work, about the same as the last one or occasionally worse. The benchmark ...

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DEV Community • 2026-08-15 21:54

The Problem With AI “Memory”

“Memory” is the feature everyone asked for and few thought through. The pitch is lovely: the assistant remembers your preferences, your projects, your writing style, the fact that you are vegetarian and allergic to long emails, so you never have to repeat yourself. In practice, it is one of the most consequential privacy decisions in consumer AI, dressed up as a convenience toggle, and most people...

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DEV Community • 2026-08-15 21:54

When AI Refuses Perfectly Normal Requests

Ask a modern chatbot to help with something completely ordinary and there is a growing chance it will decline. Not because the request was dangerous, but because it brushed against a keyword, a topic, or a category that the vendor's safety systems treat as radioactive. A recipe that mentions alcohol. A history question about a violent event. A medical query you were entitled to ask. A creative sce...

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Israeli airstrikes on southern Lebanon kill 11 people in another test to truce
newest submissions : multi • 2026-08-15 21:52

Israeli airstrikes on southern Lebanon kill 11 people in another test to truce

submitted by /u/Xvalt01 to r/worldnews [link] [comments]

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Hacker News: Front Page • 2026-08-15 21:49

Modeling and Verification of Keeta's Consensus [pdf]

Article URL: https://xescu.re/keeta-consensus.pdf Comments URL: https://news.ycombinator.com/item?id=49314642 Points: 3 # Comments: 1

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DEV Community • 2026-08-15 21:48

Why AI Product Launches Feel Identical

Watch enough AI launches and they begin to blur into a single, endlessly repeating event. There is the understated title slide. The claim that we are at an inflection point. The chart showing the new model clearing a row of benchmarks. The live demo that works flawlessly. The superlatives — most capable, most advanced, our best model yet. And the closing note that all of this will roll out “over t...

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Hacker News: Front Page • 2026-08-15 21:47

Were Touch Bar's problems software rather than hardware?

Article URL: https://unsung.aresluna.org/deeper-dive-were-touch-bars-problems-software-rather-than-hardware/ Comments URL: https://news.ycombinator.com/item?id=49314630 Points: 6 # Comments: 1

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DEV Community • 2026-08-15 21:46

OurBook: el MCP donde tu agente recuerda vuestra historia (no tus datos)

La mayoría de los "agentes con memoria" recuerdan datos: un string, un hecho, una preferencia. Pero cuando hablas semanas con un agente, lo que quieres no es una base de datos con tus notas. Quieres que recuerde vuestra historia: el día que conociste a su perro, la vez que os reísteis de una idea absurda, lo que prometisteis hacer juntos. Y, sobre todo, quieres que no confunda lo real con lo soña...

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