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Posts by Klaus Aschenbrenner

What AI coding costs you | Tom Wojcik What's the effect of the prolonged AI usage among coders and is it tracked correctly, if it all?

This is one of the most balanced critiques of AI I've read so far.

"Reviewing AI output all day without the dopamine of creation is not a sustainable job description."

tomwojcik.com/posts/2026-0...

3 weeks ago 11 1 1 0
Screenshot aus der Presse:
Pröll: "Österreich braucht mehr Steinberger und weniger Schrems"

Screenshot aus der Presse: Pröll: "Österreich braucht mehr Steinberger und weniger Schrems"

Max Schrems ist ein Jurist, der mit seinem Einsatz für Datenschutz- und Grundrechte international höchst erfolgreich war. Peter Steinberger reitet eine Bubble, die uns derzeit alle mit einem ganzen Bündel gefährlicher Probleme konfrontiert. Österreichische Medienpolitik so:

3 weeks ago 515 91 20 3
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We released DuckDB v1.5!

This release comes with a “friendly CLI” client, a new (opt-in) PEG parser, support for VARIANT types and many lakehouse features. It also ships a new network stack, a reworked geospatial extension, Azure writes and an ODBC scanner.

Read more at duckdb.org/2026/03/09/a...

3 weeks ago 63 16 0 1
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[VLDB '25] MD-MVCC: Multi-version Concurrency Control for Schema Changes in Azure SQL Database
www.vldb.org/pvldb/v...

A great discussion of the end-to-end impact of allowing multiple versions of schema metadata information to be live concurrently, in a real, production system.

3 weeks ago 8 2 0 0
GNU and the AI reimplementations - <antirez>

New blog post: "GNU and the AI reimplementations" antirez.com/news/162

3 weeks ago 27 7 1 3

CU2, and there still all the various performance problems regarding JSON indexes… 🧐

4 weeks ago 0 0 0 0

It's so "funny" when #ChatGPT hallucinates about SQL Server 2025 feature internals, which are not documented anywhere. And then it says "sorry", because it delivered garbage to you... #StrangeNewWorld

4 weeks ago 0 0 0 0
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I wish you all the best, a fast recovery, and stay strong! 💪

4 weeks ago 0 0 0 0

I want to control what kind of data is going out. Here, 5 queries were executed, and I can‘t see directly what the LLM has extracted from my database. Good luck… 🫣

1 month ago 0 0 1 0

I want to control what kind of data is going out. Here, 5 queries were executed, and I can‘t see directly what the LLM has extracted from my database. Good luck… 🫣

1 month ago 0 0 0 0

As soon as data is passed out of my database, it is *NOT* ok anymore! It doesn’t matter if it‘s saved - or not.

1 month ago 1 0 2 0
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CoPilot in SSMS reads from my database/sql server instance, but doesn't show me any executed queries. This is *so* dangerous for your production data - CoPilot could just pass some of your sensitive data to the LLM provider... #ai #llm #datasecurity #gdpr

1 month ago 4 2 2 0
Don’t Miss Out – SQL Server 2025 Unleashed Training Starts Next Monday! – SQLpassion

[Blog] Don’t Miss Out – SQL Server 2025 Unleashed Training Starts Next Monday! www.sqlpassion.at/archive/2026... #sqlserver #performance #ai #vector #hadr

1 month ago 0 0 0 0
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What AI coding costs you | Tom Wojcik What's the effect of the prolonged AI usage among coders and is it tracked correctly, if it all?

The new Ballmer Curve: tomwojcik.com/posts/2026-0...

1 month ago 5 2 2 0

When my MacBook Air M3 24 GB outperforms my AMD Ryzen system (128 GB RAM) with a RTX 3080Ti GPU for local LLM inference. The Unified Memory architecture rocks! 💪

1 month ago 2 0 0 0

Anthropic has style and responsibility! 👍

1 month ago 0 0 0 0
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Most programmers are taught that L1 is the “top level” cache on x86.


It’s not quite true anymore!


Intel calls it the Decoded Stream Buffer (DSB), AMD the OpCache.

Only enough room for ~4,000 micro-ops, but there are interesting ways to take advantage of it.

1 month ago 151 17 4 1
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I have never thought that software engineers will be substituted by endless loops... #AgenticAI

1 month ago 0 1 0 0

"new consulting pipeline almost shut off starting in December" -> same here! 😪

1 month ago 1 0 1 0
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Ibm Stock: ibm stock Drops 13.5% After Anthropic COBOL Warning ibm stock sold off steeply on Monday, dropping 13. 5% after Anthropic renewed fears that AI code assistants could disrupt legacy COBOL workloads. The rout erased $31 billion in market value, and share...

AI destroys now almost every company on earth: IBM stock Drops 13.5% After Anthropic COBOL Warning: www.filmogaz.com/165789

1 month ago 3 1 0 0

WTF! 🫣

1 month ago 1 0 1 0
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WTF? That's part of the generated documentation... #wtf

1 month ago 1 0 0 0
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Never, ever trust an LLM *blindly*: Claude Code generated me frontend code that stores a bearer token (used for authentication against the REST API backend) in local storage. That's the perfect use case for XSS attacks... #fail #llm

1 month ago 2 2 1 0
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PostgreSQL Quickie #2: Installation in Virtual Machines – SQLpassion

[Blog] PostgreSQL Quickie #2: Installation in Virtual Machines: www.sqlpassion.at/archive/2026... #PostgreSQL #postgres #quickie #youtube

1 month ago 0 0 0 0

Our children (13.5/16 years) also have to decide what they are doing in their future (because it depends on the school they are visiting). A really tough decision...

1 month ago 2 0 2 0

Thanks for the info. Are there any freelancing options possible?

1 month ago 0 0 0 0

Why not?

1 month ago 0 0 1 0

If you need help…

1 month ago 0 0 1 0

Oh, sorry 😪

1 month ago 0 0 1 0

Nobody needs you anymore…

1 month ago 1 0 1 0