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carlos_rpn commented on The surprise deprecation of GPT-4o for ChatGPT consumers   simonwillison.net/2025/Au... · Posted by u/tosh
perlgeek · 16 days ago
GPT-5 simply sucks at some things. The very first thing I asked it to do was to give me an image of knife with spiral damascus pattern, it gave me an image of such a knife, but with two handles at a right angle: https://chatgpt.com/share/689506a7-ada0-8012-a88f-fa5aa03474...

Then I asked it to give me the same image but with only one handle; as a result, it removed one of the pins from a handle, but the knife had still had two handles.

It's not surprising that a new version of such a versatile tool has edge cases where it's worse than a previous version (though if it failed at the very first task I gave it, I wonder how edge that case really was). Which is why you shouldn't just switch over everybody without grace period nor any choice.

The old chatgpt didn't have a problem with that prompt.

For something so complicated it doesn't surprise that a major new version has some worse behaviors, which is why I wouldn't deprecate all the old models so quickly.

carlos_rpn · 16 days ago
Somehow I copied your prompt and got a knife with a single handle on the first try: https://chatgpt.com/s/m_689647439a848191b69aab3ebd9bc56c

Edit: chatGPT translated the prompt from english to portuguese when I copied the share link.

carlos_rpn commented on Life, Work, Death and the Peasant: Family Formation   acoup.blog/2025/08/01/col... · Posted by u/Khaine
super_deap · 21 days ago
I sometimes wonder why such essays mostly extrapolate 'western' history to the entire world.
carlos_rpn · 20 days ago
This series at least doesn't, and the author points it out in the first part, as is many other articles, he can't really speak of cultures far removed from what he's specialized in, Roman Republic and Roman Empire, and anything outside of it is more of an overview.
carlos_rpn commented on Mostly dead influential programming languages (2020)   hillelwayne.com/post/infl... · Posted by u/azhenley
lucas_membrane · a month ago
There are some regulations in bond pricing or international banking or stuff like that that require over 25 decimal places. IIRC, the best COBOL or whatever could do on the IBM 360's was 15 digits. The smaller, cheaper, and older 1401 business machines didn't have any limit. Of course, for nerdy financial applications, compound interest and discounting of future money would require exponentiation, which was damn-near tragic on all those old machines. So was trying to add or subtract 2 numbers that were using the maximum number of digits, but with a different number of decimal places, or trying to multiply or divide numbers that each used the maximum number decimal places, with the decimal point in various positions, and it was suicide-adjacent to try to evaluate any expression that included multiple max precision numbers in which both multiplication and division each happened at least twice.
carlos_rpn · a month ago
> There are some regulations in bond pricing or international banking or stuff like that that require over 25 decimal places.

Sounds interesting. Is there anywhere you know I can read about it, or is there something specific I can search for? All results I'm getting are unrelated.

carlos_rpn commented on Poll: How often do you bathe?    · Posted by u/surprisetalk
electriclove · 3 months ago
When people in South America shower 2-3 times a day, do they also change their underwear 2-3 times a day?
carlos_rpn · 3 months ago
I live in Rio de Janeiro, and I'd hope so.

Who would want to wear sweat soaked underwear after a shower?

carlos_rpn commented on Learning Delphi    · Posted by u/pkrzysiek
carlos_rpn · 4 months ago
I haven't worked with Delphi in years, but https://learndelphi.org/ seems interesting. Also, Embarcadero may have some free training material.
carlos_rpn commented on Brazil's government-run payments system has become dominant   economist.com/the-america... · Posted by u/jcartw
DanielHB · 5 months ago
Sweden has had a similar system for several years before PIX in Brazil. It is also integrated with the digital ID system (BankID). The main difference is that the Swedish system is ran through a private organization managed by all the major banks (and the central bank) in conjunction. So the central bank doesn't have direct access to the transaction data technically.

While the Brazilian system is only interacted directly through your bank application, the Swedish application is a separate application tied to your bank account in the backend. Given the... quality of bank apps this is a huge plus. The Swedish Swish app is MUCH easier to use because it only does one thing. My Brazilian mother does not know how to send PIX because her bank app is very confusing and the PIX option is just one of many.

The BankID system of Sweden though is even more impressive than money transactions, pretty much everything government related (including healthcare, taxes, etc) and most private institutions (bank apps, Swish, digital contract signatures) is done through the unified BankID login.

People raised concerns over privacy, but the main problem really is that since these systems cut out the middle man (Visa/Mastercard) and have no fees you also have no fraud protection which is something to keep in mind when using them. Once you send the money it is gone, the banks will not give it back to you even if you got scammed. It creates a whole sort of scam industry in both countries.

https://en.wikipedia.org/wiki/Swish_(payment)

https://en.wikipedia.org/wiki/BankID

carlos_rpn · 5 months ago
My suggestion would be to create an account for her with Nubank or Mercadopago, which are easier to use, faster to login than any banking apps, and have PIX more readily available after login, and then keep some money on the new account just for the kind of purchases she'd use pix for. I do that for myself just for ease of use.
carlos_rpn commented on Blender releases their Oscar winning version tool   blender.org/download/rele... · Posted by u/babuloseo
sam_lowry_ · 5 months ago
MySQL is a much better choice for sysadmins than Postgres. Postgres won because it was easier to migrate from Oracle.
carlos_rpn · 5 months ago
Honest question: why is MySQL better for sysadmins?
carlos_rpn commented on I'm Done with Ubuntu   ounapuu.ee/posts/2025/02/... · Posted by u/LorenDB
fph · 7 months ago
Is there around a Linux distro that manages to get compartmentalized apps (Snaps / Flatpaks or whatever) right? I feel like they have security advantages, even if people hate them because they don't work out-of-the-box.

Android has compartmentalized apps by design, and it seems like everything work there, but that's because developers are forced to think about it and make it work.

carlos_rpn · 7 months ago
Can't you just use an AppImage (if available) for things you don't want to bother with instalation? I only use it for emulators, and I don't really explore the OS anymore, so I'm not sure if they have any downsides.

u/carlos_rpn

KarmaCake day49April 14, 2017View Original