Alexander Castillo

Finder of problems, purveyor of solutions. Security, technology, and a healthy dose of optimism.

[Alexander Castillo @castiliad]

@poteto @bot - sent bot this thread
- bot says login to x on its computer so it can see the thread
- ask why it’s not using my x connection
- bot says connection can’t pull threads
- try to login to x on bots computer
- account is temporarily restricted from login

☹️

[Alexander Castillo @castiliad]

@alexandr_wang The meta affiliate logo looks pretty awesome. Pumped for Connect 2026

[joel ⛈️ @joelhooks]

a session you compacted 157 times is like a seasoned cast iron pan

[kitze 🛠️ tinkerer.club @thekitze]

shout out to any parent here that shifts from a crazy llm dopamine rollercoaster for 8hrs to the complete opposite of it and trying to play calmly with play doh and magnatiles

[Alexander Castillo @castiliad]

The original question asked for someone who held that justified and regenerate believers could never lose salvation. It then became “universal denial” of that idea. Gottschalk was set aside first for allowing temporary regeneration, and now the standard is restated again as requiring that every initially justified person is elect.
Each step makes the historical claim harder to falsify. If the definition keeps tightening to exclude any partial continuity with the Reformed view, then “universal denial” risks becoming true mostly by how you draw the target rather than by the actual historical record.

Is the claim still that no Christian in that period held anything meaningfully close to the security of the truly regenerate, or only that none held the exact later Reformed formulation?

[Alexander Castillo @castiliad]

Agreed it’s not a great argument, but if we exclude all formally condemned groups how do we avoid making the “universal denial” claim unfalsifiable? Gottschalk’s case involved real debate among churchmen who did not all treat him as outside the pale of Christian discourse at the time.

[Alexander Castillo @castiliad]

@ReformedToRome @ils_form @WesleyLHuff Was it really universal or does Gottschalk not count because he was condemned as a heretic?

[Alexander Castillo @castiliad]

@ReformedToRome @ils_form @WesleyLHuff Must a doctrine have been explicitly taught in its fully developed form by someone between John and the Reformation in order for it to be true?

[Michael Dell 🇺🇸 @MichaelDell]

What @tobi is doing here is remarkable: running GLM-5.2, a 753B-parameter AI model, locally on a Dell Pro Max with GB300 at 40 tokens per second.

No data center. No API. No cloud.

Unmetered intelligence. Frontier-scale AI is becoming personal.🚀

[shaurya @shauseth]

do you think genghis khan had a dashboard to give him operational insights

[The White House @WhiteHouse]

Today, we remember a legend.

On this day in history, Harambe would have celebrated another birthday. An icon that became part of internet history, American culture, and an entire generation’s timeline.

Tomorrow marks 10 years since we lost him. Ten years since the moment the world stopped scrolling and collectively mourned something bigger than a meme.

He became a symbol of loyalty, strength, chaos, unity, and the strange beauty of the internet bringing millions of people together for one cause: never forgetting Harambe.

Everyone remembers where they were when they heard the news. And somehow, a decade later, his legacy still lives on.

Gone, but never forgotten.
Rest easy to a true patriot. 🕊️🇺🇸

May 27, 1999 — May 28, 2016
Forever in our hearts.

[Alexander Castillo @castiliad]

@southpolesteve I’m partial to having a “pet” that helps me wrangle the “cattle”. The compactions of the primary agent’s context matter less when subagent context persists in their separate sessions. Post-compaction, the pet can easily get up to speed as needed with /recap

[Emma Steuer 🧚🤖 @emmasteuer1]

You only live once, so make sure to spend as much time as possible on your computer. You won’t have access to it when you die

[Mathematica @mathemetica]

max⁡(∣x∣,∣y∣,∣z∣,∣w∣)=1

You’re witnessing a 2D projection of a 3D shadow cast by a 4D tesseract.

As it rotates through the W-axis, the "inner" and "outer" cubes swap roles: a spatial inversion that feels like a glitch only because our biology is trapped in 3-space.
It’s a hauntingly beautiful reminder that our "reality" is often just a lower-dimensional cross-section of a much more complex structure. Perspective is everything.

This is used in high-dimensional data visualization, hypercube topologies in parallel computing networks, and exploring the geometry of extra dimensions in theoretical physics.

[Alexander Castillo @castiliad]

lol ‘hunter2’ @bcherny

[sigfig @sigfig]

people misunderstand the icarus story. the problem was not that he flew too high. it's that the wings were made of beeswax, which offered very little resistance to heating. with modern materials he would have had no problems. we can fly as close to the sun as we want now

[NVIDIA AI Developer @NVIDIAAIDev]

🙌 Andrej Karpathy’s lab has received the first DGX Station GB300 -- a Dell Pro Max with GB300.

💚 We can't wait to see what you’ll create @karpathy!

🔗 https://t.co/8ct5QZ3frS

@DellTech

[Angela ⟢ @luxangelae]

silly idea i had

[Greg Brockman @gdb]

how did we ever write all that code by hand

[Aleks @aleksliving]

AirPods are great until you touch them wrong and they trigger an ultrasonic whistle designed to liquify your brain inside your skull