Hacker News: AlecBG

New comment by AlecBG in "Using Claude Code: The unreasonable effectiveness of HTML"

AlecBG — Sat, 09 May 2026 08:37:43 +0000

Java engineers write lots of HTML in java docs:)

New comment by AlecBG in "GitHub Actions is the weakest link"

AlecBG — Tue, 28 Apr 2026 18:20:25 +0000

You can enforce at the org level to only allow actions pinned to hashes. You can also choose a small whitelist of actions to allow.

New comment by AlecBG in "Michael Rabin has died"

AlecBG — Sat, 18 Apr 2026 12:00:09 +0000

First sentence starts with horrible antisemitism. Can someone fix it? (on my phone with kids so not in a position to)

New comment by AlecBG in "Show HN: CEL by Example"

AlecBG — Wed, 18 Feb 2026 23:17:51 +0000

With certain macros disabled like .map the runtime is O(code length)!

New comment by AlecBG in "Quaternion Algebras"

AlecBG — Sat, 31 Jan 2026 16:34:14 +0000

You can describe spinning particles in flat space and AdS space really nicely with twistors using this

New comment by AlecBG in "A recent chess controversy"

AlecBG — Fri, 26 Sep 2025 16:26:28 +0000

Or similarly I flip a coin a thousand times, but only tell you when it's heads and don't tell you how many flips I did.

New comment by AlecBG in "Shai-Hulud malware attack: Tinycolor and over 40 NPM packages compromised"

AlecBG — Tue, 16 Sep 2025 19:51:17 +0000

Not sure I completely agree as you often use only a small part of a library

New comment by AlecBG in "Scaling our Observability platform by embracing wide events and replacing OTel"

AlecBG — Sat, 21 Jun 2025 10:57:30 +0000

This sounds pretty easy to hack together with 10s of lines of python

New comment by AlecBG in "Dead Stars Don’t Radiate"

AlecBG — Sat, 17 May 2025 20:35:50 +0000

well he certainly mentions a result where if there is an everywhere timelike Killing vector field (+ some other assumptions) you can prove that Hawking radiation doesn't occur and that does not include for example the Schwarzschild solution because the Killing vector field partial/partial t becomes non-timelike on the horizon.

So for example if you take a dead star in a vacuum with nothing else in the universe (and make certain technical assumptions) then you can prove that the star does not emit Hawking radiation. That's quite a strong result, and certainly does make the result seem shocking.

New comment by AlecBG in "Dead Stars Don’t Radiate"

AlecBG — Sat, 17 May 2025 19:07:20 +0000

I'm not sure what more you want from him, there are many papers and even a textbook linked?

It's bloody John Baez, the man knows his stuff.

On you actual point, it is shocking because its claimed that baryon number is not conserved without black holes getting involved

New comment by AlecBG in "Preview: Amazon S3 Tables and Lakehouse in DuckDB"

AlecBG — Tue, 18 Mar 2025 18:26:55 +0000

Does this support time travel queries?

Does it support reading everything from one snapshot to another? (This is missing in Athena)

If yes to both, does it respect row level deletes when it does this?

New comment by AlecBG in "StrictYAML"

AlecBG — Fri, 07 Mar 2025 13:08:09 +0000

Why OrderedDict when dict is already ordered?

New comment by AlecBG in "US goverment seeks to rehire recently fired nuclear workers"

AlecBG — Sun, 16 Feb 2025 09:23:12 +0000

If anything ICBMs are better at moving fast and breaking things than the tech industry

New comment by AlecBG in "The number pi has an evil twin"

AlecBG — Tue, 24 Dec 2024 08:11:11 +0000

The lemniscate really looks like a homoclinic orbit in a 2d dynamics problem

New comment by AlecBG in "Entangled Photons Maintained Under New York Streets"

AlecBG — Wed, 14 Aug 2024 12:30:08 +0000

I don't know how they did it, but verifying Bells inequality would do it if you made many pairs

New comment by AlecBG in "Numeronymize"

AlecBG — Sun, 07 Jul 2024 17:00:16 +0000

Translation:

There is no better way to write with long words than to numeronymise them everywhere!

Or for the less obtuse among us, this version will only numeronymise words with length six and up:

New comment by AlecBG in "Grothendieck’s use of equality"

AlecBG — Mon, 20 May 2024 21:07:58 +0000

I'm not sure I agree. That sort of type conversion involves inclusions, while the examples Buzzard talked about involved isomorphisms

New comment by AlecBG in "Algebraic Data Types for C99"

AlecBG — Thu, 09 May 2024 13:06:30 +0000

Sealed interfaces in java 21 allow pattern matching

New comment by AlecBG in "A hacker's guide to Language Models"

AlecBG — Sun, 21 Apr 2024 13:43:13 +0000

OpenAPI + OpenAI and now FastAPI and FastAI

How long until there's a RESTAI company?

New comment by AlecBG in "AWS Makes Cloud Formation Stack Creation Up to 40% Faster"

AlecBG — Mon, 18 Mar 2024 08:55:02 +0000

I've found the exact opposite of that in practice. Had way more problems with tearing down CDK stacks