Carlos Sierra

@csierrandres
154 Followers
473 Following
1,072 Posts
Father of two. Partner of one. Keystrokes generator.
Nobody on LinkedIn has ever had a bad day. Every setback is a "growth opportunity." Every firing is a "new chapter." Every complete professional disaster is framed as "excited to announce." These people would describe the Titanic as "a bold pivot to submarine operations."

Welp, the thing happened to me today.
AI took my job.

I learn hard things fast and explain them clearly.

Do you or someone you know need that skill?

#TechnicalWriter #training #OpenToWork #GetFediHired

NSFW - Not Safe From 

If you replace a junior with #LLM and make the senior review output, the reviewer is now scanning for rare but catastrophic errors scattered across a much larger output surface due to LLM "productivity."

That's a cognitively brutal task.

Humans are terrible at sustained vigilance for rare events in high-volume streams. Aviation, nuclear, radiology all have extensive literature on exactly this failure mode.

I propose any productivity gains will be consumed by false negative review failures.

Supongo que recordaréis la famosa fórmula para resolver ecuaciones de segundo grado. Aquella que decía que cuando tengo una ecuación con esta pinta: ax² + bx + c = 0 ; la forma de resolverlo es aplicar esta fórmula: x = [-b ± √(b² - 4ac)] / (2a).

Supongo que también os dirían aquello de “la demostración matemática es muy complicada así que aprendéos la fórmula y ya”. A mí me lo dijeron. Y me consta que hoy en día se sigue diciendo.

Pero como yo soy de los que piensa que las mates hay que entenderlas y no tanto memorizarlas pues aquí vengo a deciros de dónde narices viene esa fórmula del demonio. Porque no, no es algo que alguien se haya inventado, sino el resultado de despejar la “x”, ni más ni menos.

¿Lo vemos?

If you're interested in funding or helping us find funding for a Discord replacement that's federated and end-to-end encrypted, we're interested in implementing that at @spritely ... we even had been talking about that being our big focus for 2026.

We have the skills and the underlying tech to pull this off. What we need right now is resources. Funding for open source nonprofits like ours really fell apart in 2025. If you think you know how to help, feel free to reach out.

I can't believe I've waited this long to create this stupid shell function:

```
rfc() {
local rfc="rfc${1##rfc}";
curl -s "https://www.rfc-editor.org/rfc/${rfc}.txt" | ${PAGER:-more}
}
```

Israel to ban MSF from working in Gaza over refusal to provide staff list
https://www.bbc.com/news/articles/cvg1ymmkpkro?utm_source=flipboard&utm_medium=activitypub

Posted into World @world-BBCNews

Israel to ban MSF from working in Gaza over refusal to provide staff list

Medical charity Medicine Sans Frontières said it would not share the list as it had not been able to ensure staff would remain safe.