Sérgio Freitas

Observer of the world, guardian of systems, father of things. Opinions are unknown.

[Cisco ThousandEyes @thousandeyes]

We used Cisco ThousandEyes Model Context Protocol (MCP) Server with an AI agent in Cursor to triage thousands of root DNS alerts. Normally, an exploratory analysis like this means weeks of writing and rewriting scripts to test different hypotheses.

[Cisco ThousandEyes @thousandeyes]

AI can isolate network issues in seconds—but do you trust it to act autonomously?

True autonomy requires continuous assurance—a validation engine proving that machine-led fixes actually improved user experience.

Read more about it ➡️ https://t.co/QZGk5X5t5E

[Jaana Dogan ヤナ ドガン @rakyll]

Generative coding progression is impressive:

2022: Generating next few tokens, completing lines.
2023: Generating next few sections.
2024: Generating and editing across few files, building single file apps.
2025: Building and refactoring whole repos.

[Nature is Amazing ☘️ @AMAZlNGNATURE]

Voyager 1 Is About to Reach One Light-day from Earth

After nearly 50 years in space, NASA’s Voyager 1 is about to hit a historic milestone. By November 15, 2026, it will be 16.1 billion miles (25.9 billion km) away, meaning a radio signal will take a full 24 hours, a full light-day to reach it.

[Steve Krouse @stevekrouse]

MCP is mostly nonsense, but there are good effects:

1. Tricks management to green-light engineering efforts on APIs and OAuth DCR (Dynamic Client Registration)

2. Tricks LLM clients to integrate with everyone, ie an open-ecosystem, not walled gardens

3. (Just discovered this one today) The fact that MCP is a difference surface from your normal API allows you to ship MUCH faster to MCP. This has been unlocked by inference at runtime

Normal APIs are promises to developers, because developer commit code that relies on those APIs, and then walk away. If you break the API, you break the promise, and you break that code. This means a developer gets woken up at 2am to fix the code

But MCP servers are called my LLMs which dynamically read the spec every time, which allow us to constantly change the MCP server. It doesn't matter! We haven't made any promises. The LLM can figure it out afresh every time

This is why we've shipped capabilities to our MCP server that our API doesn't yet have. We aren't worried about committing ourselves to anything. We can always change the MCP server later and the LLM will figure it out

[Cisco Partners @CiscoPartners]

🏁 When every millisecond counts and competitiveness is extreme, you need to watch it all. @McLarenF1 makes it possible thanks to @thousandeyes.

Feel the speed. Watch the full video: https://t.co/2XreIn8Tjr

[Sérgio Freitas @sasfreitas]

Ongoing global starlink outage

[Cisco ThousandEyes @thousandeyes]

ThousandEyes data indicates that Starlink is experiencing a widespread global outage that began around 19:15 UTC and is still ongoing. https://t.co/cjjigymbFl (no login required)

[Cisco ThousandEyes @thousandeyes]

On July 14, at approximately 21:53 UTC, ThousandEyes detected routing instability affecting Cloudflare’s public DNS resolver 1.1.1.1. The issue occurred when TATA Communications (AS4755) announced the IP address block (1.1.1.0/24) that belongs to Cloudflare, resulting in a hijack that disrupted website access for some users. The issue was resolved at 22:19 UTC when TATA’s AS4755 withdrew the announcement of the 1.1.1.0/24 prefix and valid routing resumed.
Explore within the ThousandEyes platform (no login required): https://t.co/dDumQeiX27

[Sérgio Freitas @sasfreitas]

https://t.co/NoF7enMTbi

[Cisco ThousandEyes @thousandeyes]

On March 10, social media platform X experienced a series of five different disruptions of varying duration, rendering the service inaccessible to some users worldwide. The issues were first observed around 9:45 UTC and appeared to be resolved for most users by 18:15 UTC. During the disruptions, ThousandEyes observed network conditions that are characteristic of a DDoS attack, including significant traffic loss conditions which would have hindered users from reaching the application.
Explore within the ThousandEyes platform (no login required): https://t.co/5c0kUbVXD4

[Sérgio Freitas @sasfreitas]

@rickygervais Looking forward to see you again ❤️

[Konstantinos Karagiannis @KonstantHacker]

1. Topological quantum computing is here! This thread explains how Microsoft’s Majorana 1 works and what it will mean for a fault tolerant future. I was invited to Azure Quantum Labs and got to hold this amazing new chip!

[Massimo @Rainmaker1973]

The most enigmatic structure in cell biology: the Vault.

Often missing from science text books due to the mysterious nature of their existence, it has been 40 years since the discovery of these giant, half-empty structures, produced within nearly every cell, of every animals, on the planet.

[Alessandro Palombo @thealepalombo]

Lisbon Is Secretly Becoming Europe’s Silicon Valley—And This Is Just the Beginning.

I moved here two years ago to launch the Bitcoin Ecosystem Golden Visa Fund. Since then, I’ve seen something wild:

Lisbon has MORE BUILDERS per capita than Berlin or London. More energy. More ambition.

And here’s what’s even crazier:
• 20% flat tax for local income for tech workers
• 0% tax on foreign income
• 0% crypto tax after a 1-year hold
• Half the living costs of other tech hubs
• Perfect weather (sorry, London)

Portugal isn’t just welcoming founders. It’s actively engineering a better ecosystem.

While the rest of Europe pushes talent away, Lisbon rolls out NHR 2.0—a regime built for innovation (local employment position required).

And yet… one massive problem remains.

Bureaucracy.
Slow, complex, painful—classic EU.

But that’s about to change.

The 28th regime is coming, and it’s about to flip the script:

• Nevada/Texas-style framework. Hire, fire, incorporate, dissolve—EASILY.
• SAFE-based investments, single model. No nonsense, just clarity.
• San Francisco weather, but at a fraction of the cost.
• The only EU country with a legit, well-tested tech tax regime. (NHR 2.0)

Nobody’s ready for what’s about to happen.

Lisbon is the only city where you can build a unicorn while surfing on your lunch break.

If you’ve felt the shift, drop a comment. I want to know...do you see what I see?

[Sérgio Freitas @sasfreitas]

@levelsio @levelsio did you even payed taxes? Right now in Portugal you are <35 you are entitled to not pay taxes in your first home

[Sérgio Freitas @sasfreitas]

@levelsio The notary cost is much lower than €4000 I paid €950 did you add other loan costs? also the gov taxes are lower check the imt table max is 7,5%+0.8%

[Sérgio Freitas @sasfreitas]

@levelsio Also I would add the yearly house taxes are low and you don’t pay inheritor taxes that’s why so many people sell property in other countries like Netherlands and buy in Portugal

[Sérgio Freitas @sasfreitas]

@GergelyOrosz Looking forward for my office 365 AI agent replacement

[Sérgio Freitas @sasfreitas]

@levelsio I will always get my deliveries on time even Temu🫶you need to improve your delivery energies

[Sérgio Freitas @sasfreitas]

@levelsio Love Portugal 🫶 its so bad that becomes good