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zweifuss

257 karma · joined September 14, 2020

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zweifuss··on We found a division by zero bug in FFmpeg with a vibecoded fuzzer
Some WTFs are to be expected: https://www.osnews.com/story/19266/wtfsm/
zweifuss··on Coconut oil jet fuel matches kerosene's efficiency in engine tests
Middle of the road, comparable to Sunflower oil. But they want to utilize waste products and a low energy conversion process.
zweifuss··on LFM2.5 2.6B model competitive with 4x larger models
It should. With good speed even on a 12th gen Intel. But more importantly, what's your use case?
zweifuss··on Covid.gov – Lab Leak: The True Origins of Covid-19
These claims by WH site are at least debatable/unsubstanciated:

- "The virus possesses a biological characteristic that is not found in nature." Furin cleavage sites are common in other types of coronaviruses (like MERS).

- "Data shows all cases stem from a single introduction into humans." The collected samples suggest there were at least two separate spillover events (Lineage A and Lineage B) at the Huanan Market.

- "If there was evidence of a natural origin it would have already surfaced." For many viruses we have never found the exact animal/human jump variant or the in-between carriers.

zweifuss··on UnifiedIR for Julia
So, does this mean faster rendering in notebooks, better debugging, fewer NVIDIA troubles?
zweifuss··on Einstein's relativity rules chemical bonds in heavy elements, new research shows
As said before, the physics for chemistry is 100 years old (Schrödinger/Dirac), but the N-body Hamiltonian is an exponential beast. Scaling to just 1mg (~10¹⁹ particles) hits the "Exponential Wall."
zweifuss··on I need your clothes, your boots, and your motorcycle
The app on your Mac today isn't a rewrite of the legendary Mac OS 7.2.1 Graphing Calculator, but an acquired app based on Curvus Pro introduced in OSX Tiger.

The first one has a legendary backstory. 2 devs snuck into Apple after their project was canceled: https://www.pacifict.com/Story/

Curvus Pro: https://macintoshgarden.org/apps/curvus-pro

zweifuss··on CEOs who think AI replaces their employees are just bad CEOs
The disagreement in timelines usually comes from differences in the used definition of AGI. Many who predict a 2026–2028 arrival define it as: 'the ability to perform any purely cognitive task a human can do.' If we stick strictly to that 'cognitive-only' metric, we are arguably very close.
zweifuss··on Rob Pike’s Rules of Programming (1989)
When you explore a problem, use Python and lists/sets/dictionaries/JSON. Wait with types and specific data structures till you have understanding. Speed of development over speed of execution.

When you know what and how to build commit to good data structures. Do the types, structs, classes, Trie, CRDTs, XML, Protobuf, Parquet and whatnot where apropriate. Instrument your program. The efficiency of the final product counts.

zweifuss··on Danish government agency to ditch Microsoft software (2025)
If you can do a successful switch to cloud only Entra (aka. AzureAD) first, you are 90% ready for a migration to Open Source. You need Entra for Licensing anyway. Yes, I'm aware that this is hard.

Univention Nubus (Keycloak + OpenLDAP) or FreeIPA as alternatives for Entra come to mind. You can even leverage your Powershell expertise.

zweifuss··on Apple I Advertisement (1976)
The text was mangeled by some OCR-software. This ad can be found as image on Wikimedia: https://commons.wikimedia.org/wiki/File:Apple_1_Advertisemen...
zweifuss··on East Germany balloon escape
Yes and no.

They all have a very solid industrial base, like 30% to 50% of the economy, with ~50% of workers living abroad (not fully part of the welfare state). Comparatively high R&D. Low taxes.

And plain tax evasion is now illegal, but those countries are still an important stop to hide money elsewhere.

But the main secret sauce is a flexible fast legal system. Stability, low crime, and less gridlock in the legislature when the need for change is realized.

zweifuss··on Himalayas bare and rocky after reduced winter snowfall, scientists warn
https://homerdixon.com/wp-content/uploads/2017/08/Environmen...
zweifuss··on AI is forcing us to write good code
I made a mistake:

  Test #  A      B      C      Result
  1       True   True   False  True
  2       False  True   False  False
  3       True   False  False  False
  4       False  True   True   True
zweifuss··on AI is forcing us to write good code
Modified Condition/Decision Coverage

It's mandated by DO-178C for the highest-level (Level A) avionics software.

Example: if (A && B || C) { ... } else { ... } needs individual tests for A, B, and C.

Test #,A,B,A && B,Outcome taken,Shows independence for

1,True,True,True,if branch,(baseline true)

2,False,True,False,else branch,A (A flips outcome while B fixed at True)

3,True,False,False,else branch,B (B flips outcome while A fixed at True)

zweifuss··on Show HN: AlgoDrill – Interactive drills to stop forgetting LeetCode patterns
AlgoDrill is so futuristic, that Gemini 3 included it in the HN front page 10 years from now (#5): https://news.ycombinator.com/item?id=46205632
zweifuss··on Perl's decline was cultural
I can remember perl vs python flame wars ca. 2002.

Also, the early 2010s are not that recent: https://books.google.com/ngrams/graph?content=Pythonista%2Cp...

zweifuss··on How Quake.exe got its TCP/IP stack
The history of the Windows TCP/IP stack went most likely like this:

IBM (NetBEUI, no TCP/IP) -> Spider TCP/IP Stack + SysV STREAMS environment -> MS rewrite 1 (early NT, Winsock instead of STREAMS) -> MS rewrite 2 (make win2000 faster):

https://web.archive.org/web/20151229084950/http://www.kuro5h...

zweifuss··on Germany to ban Huawei from future 6G network
ZTE is also under scrutiny. The reason it's only Huawei and ZTE is that other Chinese providers are so insignificant that the telecoms will likely be able to replace the infrastructure themselves with spares or consolidation. However, in an emergency, the government would have to foot the bill for replacing Huawei/ZTE systems quickly, as the telecoms couldn't finance this and lack of capacity would mean very high prices.
zweifuss··on Chat Control proposal fails again after public opposition
"Chat Control" is mass surveillance, not targeted Action. Targeted action mayhaps needs some readjustment, but by and large is already easy to obtain for law enforcement.

Normalizing mass surveillance would set a precedent for authoritarian regimes worldwide to demand similar access, further eroding privacy and human rights on a global scale.

I also oppose it on technical grounds, since it would be some kind of local or hybrid ai that does the scanning. A high number of false positives harming innocents would certainly be the result.

zweifuss··on Why study programming languages (2022)
There is something to the existence of fads and fundamentals. When I started, it was Object-Oriented-Programming (with multiple-inheritance and operator overloading, of course), Round-Trip Engineering (RTE), XML, and UML.

IMHO, not the ideas were bad, but the execution of them was. Ideas were too difficult/unfinished/not battle-tested at the time. A desire for premature optimisation without a full understanding of the problem space. The problem is that most programmers are beginners, and many teachers are intermediate programmers at best, and managers don't understand what programmers actually do. Skill issues abound. "Drive a nail with a screwdriver" indeed.

Nowadays, Round-Trip Engineering might be ready for a new try.

zweifuss··on Ask HN: Abandoned/dead projects you think died before their time and why?
Silent SMS (Short Message Type 0) have been around since 1996.
zweifuss··on Ask HN: Abandoned/dead projects you think died before their time and why?
twinBASIC tries hard to be a bug compatible successor.
zweifuss··on Ask HN: Abandoned/dead projects you think died before their time and why?
MS Sidewinder Force Feedback Pro (1997) and Sidewinder Force Feedback 2 (USB). You can buy similar today, but nowhere near the pricepoint. Also the out of the box support by Windows has vanished, and therefore the incentive of game developers to include force feedback.
zweifuss··on AV2 video codec delivers 30% lower bitrate than AV1, final spec due in late 2025
A bit of both. Also, the modern Codecs have slightly different tradeoffs (image quality (PSNR, SSIM), computational complexity (CPU vs DSP vs Memory), storage requirements, bit rate) and therefore there isn't one that is best for every use case.
zweifuss··on Love C, hate C: Web framework memory problems
I would claim that:

(interactive labs + quizzes) > Learning from books

Good online documentation > 5yr old tome on bookshelf

chat/search with ai > CTRL+F in a PDF manual

zweifuss··on When I say “alphabetical order”, I mean “alphabetical order”
You mean file9 before file10?

I have some beef with microsoft, that you can only change this at the Computer level, not per user (see registry key below). Also they call it natural sorting for users, but logical sorting internaly. Unify your termini!

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer] "NoStrCmpLogical"=dword:00000001

zweifuss··on Has dystopian sci-fi been wrong all along?
I haven't read that. But the search for immortality is ancient. It's in the Gilgamesh epic; Emperor Qin Shi Huang searched for it, as did many others looking for the Philosopher's Stone. Of the current wealthy researching immortality, I know quite a few without googling: Larry Ellison, Jeff Bezos, Larry Page, Sergey Brin, Peter Thiel, Sam Altman.
zweifuss··on Has dystopian sci-fi been wrong all along?
I would like to know what dystopian books you have read.

I think about 50 years ago there began a slow shift from warnings of overt totalitarianism (1984, Brave New World, Fahrenheit 451) to threats of social fragmentation, economic inequality, corporate surveillance and other indirect forms of control, the resulting loss of individualism and, of course, ecological collapse. These issues seem to remain relevant for the foreseeable future.

I also believe that no one really understands how the world works, not even the elites. Incidentally, this is the most powerful argument for democracy that I know of.

zweifuss··on PHP 8.5 adds pipe operator
It's so dead that 79.2% of all websites rely on PHP to some degree.

https://kinsta.com/php-market-share/

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