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woliveirajr

4,287 karma · joined January 26, 2015

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woliveirajr··on Ink droplets in motion snag top prize in Nikon Small World contest
It would be funny if it was a Canon printer. Their quality and reliability are another league.
woliveirajr··on Smart people don't think others are stupid (2012)
And smart people suffer [0] [1] [2] [3] [4] exactly because they, first, think that others can have the same scrutiny about things and get surprised/disappointed when they find out how other people reach conclusions. Loneliness is the most common.

[0] https://doi.org/10.1111/j.0963-7214.2005.00328.x

[1] https://doi.org/10.1111/bjop.12181

[2] https://doi.org/10.1016/j.intell.2020.101465

[3] https://studenttheses.uu.nl/handle/20.500.12932/28009

[4] https://link.springer.com/article/10.1007/s43076-023-00313-8

woliveirajr··on Opus 5.5 agents discover two room-temperature magnetic semiconductor candidates
who created the GIRLS [0]. Oh my, we surely [1] live in a simulation played by a teenager.

[0] https://en.wikipedia.org/wiki/Pick_operating_system#History [1] https://en.wikipedia.org/wiki/Airplane!

woliveirajr··on Opus 5.5 agents discover two room-temperature magnetic semiconductor candidates
Once upon a time, in Brazil, there was a campaign about STDs. They decided to call the male genitalia as "Braulio". That name become ruined forever.
woliveirajr··on Anthropic is a supply chain risk for all of us
Not only Anthropic but any LLM that refuses to produce an answer because of some objection.

I know that no company want to be associated with a headline that their model was used to {something}.

Instead of helping us better learn something, we're heading (in fast pace) to the world where we won't be free to think outside allowed topics.

Example: I asked some LLM to give me the spell (from a certain religion) to bring justice to someone. It refused as it would be "too powerful and could be use to cause damage".

woliveirajr··on First Principles Thinking
And it's a skill that you'll use in other contexts. Over too learn and practice it in IT/physics, and you find out that you can use it to psychology, humans around you are dealt with another depth and different outcomes become possible
woliveirajr··on Don't Paste the AI, please
I'd love the link to all those Principles
woliveirajr··on Online clinics and influencers are promoting Cialis as a longevity drug
Sildenafil [0] was synthesized to treat high blood pressure. Erectile disfunction was a side effect that raised much more interest.

Tadalafil [1] followed the path of Sildenafil about the phosphodiesterase type 5 (PDE5) enzyme inhibitor.

Help to live longer was the main objective since the beginning.

[0] https://en.wikipedia.org/wiki/Sildenafil#History [1] https://en.wikipedia.org/wiki/Tadalafil#History

woliveirajr··on Compression is prediction
There is Compression done by Prediction by partial matching [0]

There is the Kolmogorov Complexity [1], Normalized Information Distance [2] and Normalized compression distance [3] that correlates those.

Finally, there's the Pre-Big Bang Informational Compression and the Delayed Release of Antimatter [4]

All big {rabbit/black} holes to lose some time, if you have any.

[0] https://en.wikipedia.org/wiki/Prediction_by_partial_matching

[1] https://en.wikipedia.org/wiki/Kolmogorov_complexity

[2] https://homepages.cwi.nl/~paulv/papers/chapter08.pdf

[3] https://en.wikipedia.org/wiki/Normalized_compression_distanc...

[4] https://philarchive.org/rec/GREPBI

woliveirajr··on Parametron: 50s Japanese computer that uses neither transistors nor vacuum tubes
Some years later, Goto was considered harmful :-)
woliveirajr··on The Cold Email
In 2013 there was some question about the SuperCow Powers that some programs had. I took time to ask Jason Gunthorpe about it. He didn't answer my email: we make a post about it [1] that became the canonical explanation. That had a huge impact on me: how could I take so long to answer simple questions from friends when Jason Gunthorpe took time to answer mine?

[1] https://web.archive.org/web/20190322061230/https://plus.goog...

woliveirajr··on US tobacco firms applied tobacco strategies to globalize ultra-processed foods
It seems similar to just regular marketing. Previously, beverages and drugs companies have used the same playbook, and data analysis just got better. Social sites are just the next step with even more behavioural data.
woliveirajr··on The Secret Garden of Rock-Paper-Scissors
Seems a lot like Normalized Compression Distance (https://en.wikipedia.org/wiki/Normalized_compression_distanc...) and Kolmogorov Complexity.
woliveirajr··on Digital Identity Management in Norway Is a Catastrophe
Brazil has the same. It's possible to login in the government platform by your bank login. Simplifies a lot for the general population that won't use password managers and so on. And, as banks use a 2FA, security is improved.
woliveirajr··on Toxicity on Social Media – The Noisy Room
Perhaps this: https://en.wikipedia.org/wiki/Spiral_of_silence
woliveirajr··on Barn Owls Know When to Wait
C= |2p - 1| doesn't do what the author wishes.

Should be c =|2p|-1

woliveirajr··on Scientists identify brain waves that define the limits of 'you'
A cell phone vibrating in your pocket: in the first days, after some days of use, many people would feel it vibrating as a muscle sensation, not as external thing vibrating.
woliveirajr··on Management Time: Who's Got the Monkey? [pdf]
Well, that actually happens a lot, with many causes.

For example: manager is perfectionist (at some level), it takes more time to delegate than doing it yourself, there's some attitude from the subordinate to undermine the manager, there's lot of work in a specific season and manager prefer to do it himself than risking his job due to a bad work form a subordinate

In an ideal world, of course the manager would replace the subordinate. But in real life, sometimes you can't find someone in the adequate time and is better to have him doing 75% of the work instead of 0%...

woliveirajr··on Kernel bugs hide for 2 years on average. Some hide for 20
But the patchset should use the same license as the original code, shouldn't?
woliveirajr··on A4 Paper Stories
Reverse: perhaps carrying a measuring tape [0] ?

[0] https://www.amazon.com/Measure-iBayam-Measuring-Measurement-...

woliveirajr··on Standard Ebooks: Public Domain Day 2026 in Literature
> tighter

I found it amusing, considering all those memes about German words with 35 letters each.

And, as I get older, I began to consider letter size relevant to choose a book edition. Gave up buying new books and went for used, older editions with bigger letters.

woliveirajr··on Beginning January 2026, all ACM publications will be made open access
Didn't expect Brazil being off the "List of Countries Qualifying for APC Waivers"

Knowing the reality of the Brazilian's public universities, the bureaucracy of the Government and the condition of the students in general, I'm pretty sure we won't have articles from Brazil anymore.

woliveirajr··on I'm Kenyan. I don't write like ChatGPT, ChatGPT writes like me
And good students are getting in trouble (meaning "have to explain themselves") to lousy teachers just because they write well, articulate ideas and can summarize information from documents where other regular people would make mistakes.
woliveirajr··on Texas Attorney General Sues Epic for Gatekeeping Medical Data
I never understood how any exams results aren't given to the person and are hold by the doctor/hospital/company.
woliveirajr··on Rubio stages font coup: Times New Roman ousts Calibri
And now I know why the default font was changed in Word. Arg. Don't think I like Times New Roman but it was the recommend font for academic papers in Brazil (and the recommendation still persists).
woliveirajr··on Show HN: Gemini Pro 3 imagines the HN front page 10 years from now
"Ask HN: How do you prevent ad-injection in AR glasses?"

Things that I haven't thought but, after seeing it, makes total sense. Scary.

woliveirajr··on The People Outsourcing Their Thinking to AI – Rise of the LLeMmings
When you go through a problem and have to solve it, you learn to see patterns (of mistakes) and develop a sense for similar problems. Outsourcing the thinking will speed you up for known problems but won't develop your thinking ability.

The gap between those who can solve new problems (and so earn money with it) and those who can't will only increase, with all the social consequences of it. Idiocracy[0] becomes more and more a documentary.

[0] https://www.imdb.com/title/tt0387808/

woliveirajr··on How the deadly Hong Kong fire spread
It's interesting to see that the bamboo are still holding it's structure despite all the fire. And that having one flammable material in all floors (the window-protecting foam) comes down to "the weakest link" is all it's needed to begin such hell.
woliveirajr··on Dissecting Flock Safety: The Cameras Tracking You Are a Security Nightmare [video]
I'll just leave this one here

https://news.ycombinator.com/item?id=15075384

woliveirajr··on Android developer verification: Early access starts
I'm pretty sure Brazil doesn't have a law saying that Google must forbid sideload. I'm sure that government (be it President, Central Bank etc) doesn't pressure Google about it.

I'm sure some private actors (for example, banks) would love that smartphones are as tight as possible (reason: [0]). Perhaps the same reason applies to Google [1]. But no, "Brazil" isn't demanding that from Google.

[0]: consider that some virus (insecure apps, for example) could somehow steal information from bank apps (even as simple as capture login information). The client might sue the bank and the bank might have to prove that their app is secure and the problem was in the client's smartphone.

[1]: the client, the bank etc might complain to Google that their Android is insecure

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