Newsletter 69 – 11/2025

Featured

The Learning Loop and LLMs – “An AI can generate a perfect solution in seconds, but it cannot give you the experience you gain from the struggle of creating it yourself.”

How Did I Get There? – Amazing post to understand how traceroute works, and how it exposes the underlying behavior of the internet. Most-read for everybody that want to learn more about network or want to remember.

The AI ick – The web is full of AI generated content, spread around texts, images and videos. How do you feel about it? Great reading to think more about what is happening to the art and content world right now and how most people behave when faced to it.

Revisiting interface segregation in Go – Interface segregation, the “i” from SOLID principles is a very powerful and useful concept that can be applied in any language with interfaces, this post gives a great overview about what is is, why it is good for your codebase and how to use it.

MISC

Your URL Is Your State – URL is not only a way to point people to a webpage, but it also a powerful tool to store state of your page.

The Internet is Cool. Thank you, TCP – A useful deep dive on TCP to clearly understand how this critical protocol works.

The Benefits of Bubbles – The author brings a interesting views about bubbles, that even they will cause problems when they burst, nicer things will happen after as a reflect of the efforts made during the bubble. If you’re on the team that belive that AI is a bubble and someday it will explode, this is a interesting read.

The Life of a Packet in the Linux kernel – Useful to understand how the Kernel behave to make your network connection work. Amazing complementary post to the one above.

Making Software“This book won’t teach you how to actually make software – it’s not a tutorial or a guide but rather something more interesting than that. It’s a manual that explains how the things you use everyday actually work.”

Heartbeats in Distributed Systems – The problem of detecting failures in a distributed system is fascinating! This post takes a look on what is heartbeats and how they solve the problem of knowing when a system is down. Also from the same blog this interesting post about Phi Accrual Failure Detection Algorithm.