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Show HN: 289x speedup over MLP using Spectral Graphs

https://zenodo.org/login/?next=%2Fme%2Fuploads%3Fq%3D%26f%3Dshared_with_me%25253Afalse%26l%3Dlist...
1•andrespi•1m ago•0 comments

Teaching Mathematics

https://www.karlin.mff.cuni.cz/~spurny/doc/articles/arnold.htm
1•samuel246•3m ago•0 comments

3D Printed Microfluidic Multiplexing [video]

https://www.youtube.com/watch?v=VZ2ZcOzLnGg
2•downboots•3m ago•0 comments

Abstractions Are in the Eye of the Beholder

https://software.rajivprab.com/2019/08/29/abstractions-are-in-the-eye-of-the-beholder/
1•whack•4m ago•0 comments

Show HN: Routed Attention – 75-99% savings by routing between O(N) and O(N²)

https://zenodo.org/records/18518956
1•MikeBee•4m ago•0 comments

We didn't ask for this internet – Ezra Klein show [video]

https://www.youtube.com/shorts/ve02F0gyfjY
1•softwaredoug•5m ago•0 comments

The AI Talent War Is for Plumbers and Electricians

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1•geox•8m ago•0 comments

Show HN: MimiClaw, OpenClaw(Clawdbot)on $5 Chips

https://github.com/memovai/mimiclaw
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I Maintain My Blog in the Age of Agents

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2•jerpint•8m ago•0 comments

The Fall of the Nerds

https://www.noahpinion.blog/p/the-fall-of-the-nerds
1•otoolep•10m ago•0 comments

I'm 15 and built a free tool for reading Greek/Latin texts. Would love feedback

https://the-lexicon-project.netlify.app/
2•breadwithjam•13m ago•1 comments

How close is AI to taking my job?

https://epoch.ai/gradient-updates/how-close-is-ai-to-taking-my-job
1•cjbarber•13m ago•0 comments

You are the reason I am not reviewing this PR

https://github.com/NixOS/nixpkgs/pull/479442
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Show HN: FamilyMemories.video – Turn static old photos into 5s AI videos

https://familymemories.video
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How Meta Made Linux a Planet-Scale Load Balancer

https://softwarefrontier.substack.com/p/how-meta-turned-the-linux-kernel
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A Turing Test for AI Coding

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How to Identify and Eliminate Unused AWS Resources

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A2CDVI – HDMI output from from the Apple IIc's digital video output connector

https://github.com/MrTechGadget/A2C_DVI_SMD
2•mmoogle•18m ago•0 comments

CLI for Common Playwright Actions

https://github.com/microsoft/playwright-cli
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Would you use an e-commerce platform that shares transaction fees with users?

https://moondala.one/
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Show HN: SafeClaw – a way to manage multiple Claude Code instances in containers

https://github.com/ykdojo/safeclaw
2•ykdojo•24m ago•0 comments

The Future of the Global Open-Source AI Ecosystem: From DeepSeek to AI+

https://huggingface.co/blog/huggingface/one-year-since-the-deepseek-moment-blog-3
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The Evolution of the Interface

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Azure: Virtual network routing appliance overview

https://learn.microsoft.com/en-us/azure/virtual-network/virtual-network-routing-appliance-overview
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Seedance2 – multi-shot AI video generation

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Πfs – The Data-Free Filesystem

https://github.com/philipl/pifs
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Go-busybox: A sandboxable port of busybox for AI agents

https://github.com/rcarmo/go-busybox
3•rcarmo•34m ago•0 comments

Quantization-Aware Distillation for NVFP4 Inference Accuracy Recovery [pdf]

https://research.nvidia.com/labs/nemotron/files/NVFP4-QAD-Report.pdf
2•gmays•35m ago•0 comments

xAI Merger Poses Bigger Threat to OpenAI, Anthropic

https://www.bloomberg.com/news/newsletters/2026-02-03/musk-s-xai-merger-poses-bigger-threat-to-op...
2•andsoitis•35m ago•0 comments

Atlas Airborne (Boston Dynamics and RAI Institute) [video]

https://www.youtube.com/watch?v=UNorxwlZlFk
2•lysace•36m ago•0 comments
Open in hackernews

Trump announces 50% tariff on Brazil for Bolsonaro trial, trade deficit

https://www.cnbc.com/2025/07/09/trump-brazil-tariffs-bolsonaro.html
19•kamaraju•7mo ago

Comments

matheusmoreira•7mo ago
And there was much rejoicing. I waited years for this news. 50% is far too low! I pay nearly 100% taxes when I import products, american or otherwise.
owebmaster•7mo ago
I can't wait for the 50% reciprocal taxes on Big Tech, finally
matheusmoreira•7mo ago
Do it! Crush them with taxes to finance this circus we call a country. Hopefully they'll leave Brazil over it.
owebmaster•7mo ago
Hopefully!
alganet•7mo ago
Fine, old man. Do your art of the deal thing.

I won't play victim, I won't support tariff retaliation. We're a peaceful nation, interested in diplomacy, with a long history of healthy commerce with the US and close ties to the north american people. This is the only sane response that one could give to such an announcement.

matheusmoreira•7mo ago
So much for peace and diplomacy. Looks like Lula is gonna retaliate and start a trade war with our second biggest trade partner even though we're exporters of commodities.
alganet•7mo ago
> Looks like

Rumours.

I approve the Itamaraty's reaction of not acknowledging the letter and sending it back.

Lacking a proper world leader, we the people must take the responsability of actually not negotiating with terrorists. We need to step up.

vitorgrs•7mo ago
Lula said today that they will try to negotiate (how? Trump is asking something that you can't negotiate), and if the day comes the tariff starts, then Brazil will retaliate with another 50% back.
matheusmoreira•7mo ago
Trump has already threatened to retaliate if he does that. Said he'll throw whatever value Lula musters up right back at him on top of the 50%. If he does what you're saying, Trump is expected to make ours a 100% tariff.

He's also threatened to apply 100% tax on countries trying to replace USD as their reserve currency, which is exactly what Lula and his friends are once again threatening.

China has a lot of leverage due to the fact they manufacture the USA's technology. We sell commodities. Natural resources and soy.

alganet•7mo ago
Are you trying to name drop stuff to gauge how I keep interacting with this kind of discussion?

Maybe it's unconscious on your part, IDK. Do you understand what you're doing?

vitorgrs•7mo ago
Sorry, didn't understand what are you saying...? Did you confuse me with another person?
alganet•7mo ago
Nope, that's for you.

I said "rumours". You jumped right in at it with more rumours and name dropping.

Are you doing it because you see other people doing or do you know what you're doing?

owebmaster•7mo ago
Honestly reading his post I'm having a hard time understanding what you are talking about.

> I said "rumours". You jumped right in at it with more rumours and name dropping.

that is what happens when someone agrees with your "rumour"?

weird interaction.

alganet•6mo ago
This is most likely because you don't understand that I was approaching the subject from the foreign relations perspective.

I did gave a big hint though (mentioning the Itamaraty)! It was hard to miss, but somehow you missed it.

Of course it's weird. It is meant to bring this lesser known approach to a potential public that does not know much about it.

owebmaster•6mo ago
It would be a better interaction if you made things more clear in place of thinking we thought too much about your way to write.

> I did gave a big hint though (mentioning the Itamaraty)! It was hard to miss, but somehow you missed it.

  I approve the Itamaraty's reaction of not acknowledging the letter and sending it back.

  Lacking a proper world leader, we the people must take the responsability of actually not negotiating with terrorists. We need to step up.
Missed what? Your point is that the Itamaraty did not acknowledged a tweet-letter and "sent it back"? Are you talking that our foreign ministry is competent? If that is the case, I agree, that is obvious for any brazilian that knows the bare minimum of foreign relations.
alganet•6mo ago
If you understood and agreed, why did you said it was weird?

If you didn't understood, why didn't you asked for clarification?

It seems that what you really missed was an opportunity to engage the interaction in a healthy way. Or maybe you missed an opportunity to listen more respectfully to the opinions of others.

Look how far you dragged this discussion out of scope. It's kind of obvious that you made a mistake.

owebmaster•6mo ago
> If you understood and agreed, why did you said it was weird?

I agreed with your first post, not the weird reply to someone that engaged with your post agreeing with you.

> Look how far you dragged this discussion out of scope. It's kind of obvious that you made a mistake.

That is exactly what I think you did with that reply.

alganet•6mo ago
Giving the lack of good candidates, I'll take the lead again then, and bring back the discussion to its tracks.

Trump thinks he's the US. He thinks he is the country. You (all commenters on this sub-thread alike) are playing his game, a cult of personality game.

If I talk about presidents, I make nations smaller than them. Therefore, Trump to me is just like a used car salesman in this discussion.

In our country, Brazil, the Itamaraty answers foreign relation issues. Not the media, not president interviews. We, as a people, do not want to live in a cult of personality. I think our diplomats represent well that intent.

You are free to disagree, of course, and cheer for your favorite leader. But in that case, you need to do it in another sub-thread. I do not welcome that kind of discussion.

Now you met a different kind of brazillian, with a different kind of argument. Not new, not exactly original, but way different than you seem to be used to.

It's completely fine that you find it weird that I keep trying the diplomacy stuff. You're used to the leader talk stuff, probably never saw anything other than that. Now you have.

Having made the proper introductions (unecessary, you could have read the history of the Itamaraty and inferred why I answered that way), now you are better equipped to talk with me. If you don't do that and go back to leader vs leader nonsense, I will assume ill intent.

In regards to diplomacy, it is in the interest of our nation to keep commerce with the US. We have a long history of it. Our nations also have much in common culturally, and our peoples are connected in several ways.

These tariffs represent a break of that trust. We, as a nation, were spied on, meddled with and bullied. Our apparent inaction to some of those breaks of trust is not due to fear or some secret alliegence, but to work for enduring peace (we're tolerating a clown, trusting that people will see beyond the circus).

owebmaster•6mo ago
> Having made the proper introductions (unecessary, you could have read the history of the Itamaraty and inferred why I answered that way), now you are better equipped to talk with me. If you don't do that and go back to leader vs leader nonsense, I will assume ill intent.

You sound like a teenager that learned about diplomacy and the Itamaraty recently and thinks everyone else is an ignorant.

> You are free to disagree, of course, and cheer for your favorite leader. But in that case, you need to do it in another sub-thread. I do not welcome that kind of discussion.

Yeah. Here we go again. Your way to argue is really, really weird. I will just say that I agree with everything you said prior this part and leave you to discuss with your imaginary opponents alone.

alganet•6mo ago
Keep the discussion in the subject or get out.
vitorgrs•7mo ago
I didn't mention any rumors. I talked about an interview Lula gave that I watched. Not sure why you are so stressed.
alganet•6mo ago
I understand, it's not intentional then.

I'm talking about foreign relations. That's why I mentioned the Itamaraty.

You're talking about news, media, interviews, etc.

You didn't noticed what my angle was, and you wanted to participate, but ended up talking about a different thing.

matheusmoreira•6mo ago
So your point is president Lula's own statements are worthless and we should be discussing possible diplomatic backroom deals instead. Who's really discussing rumours here?

The only diplomacy I want to see is of the gunboat kind. The supreme court made it clear gunboat diplomacy was their condition for folding. They said something akin to "if they park an aircraft carrier next to us then we'll see". I would have loved to see that.

alganet•6mo ago
Perhaps I'm saying he trusts the Itamaraty with official information. Official diplomatic channels are the norm, not media theatrics (miles ahead of you, "do your art of the deal thing" was the first thing I said, you failed to see behind the nuance).

Perhaps I'm saying nothing about election politics, and I'm more worried about the longstanding brazillian diplomatic tradition.

Perhaps I knew someone would bring a specific discussion to this, and disarmed it beforehand (which is super weird, I agree, but within the realm of previsibility).

Let's put some possibilities on the table:

1. You have no knowledge about diplomacy. You think it's talking soft or something like that, and you're repeating things you heard from someone else.

2. You know what diplomacy is, and you're playing dumb.

2a. You know what diplomacy is, and you're playing dumb to provoke me into going into a discussion that clearly has no conclusion.

2b. You know what diplomacy is, and you're playing dumb because you're suspicious of the way I approached the subject outside of common narratives.

3. You understand as much of the dynamics as I do, but you're putting me in a situation that I need to explain it more pedanticly (totally fine, I already explained in a simple way before, so this would be dumb on your part).

---

Which one is the closest to what you feel? Is there another one? Please, enlighten us. Don't be shy to assume option 1 if that's what it really is.

See? Cards on the table. Honesty. Try it, it's good.

matheusmoreira•6mo ago
I don't have much knowledge about diplomatic channels and their dynamics. I'm only interested in this issue because it could provide a solution to the supreme court problem. Trump is putting pressure on Brazil; whether that's political, military, economic or diplomatic pressure seems like a minor detail. What matters to me is how that's going to change Brazil.

I'd appreciate a discussion about how the diplomats might contribute towards solving the judiciary dictatorship problem. I assume they would only act to preserve the status quo via negotiation and deescalation. That's the opposite of what I want them to do.

alganet•6mo ago
Not everything is about you. Keep your stuff away from mine.
matheusmoreira•6mo ago
I'm having trouble understanding what "your stuff" even is. You apparently believe that diplomats act independently of the brazilian administration and that the president's words and actions have no diplomatic consequences. Lula's words directly contradict what you said in your first post: he said he will retaliate with tariffs if negotations do not move forward.

I'll just do what you asked and refrain from replying to you in the future.

alganet•6mo ago
Generally:

Your stuff: "I heard that...", "Leader says...", "You're like a teenager..." etc

My stuff: "Traditionally...", "What is reasonable?", "I'll explain..." etc

These two kinds of discourses don't mix.

matheusmoreira•6mo ago
For the record, not once did I call you a teenager or anything of the sort. That was someone else.
alganet•6mo ago
You're working as a collective consciousness. It's less impressive than it sounds.

You hear stuff from one of your trusted sources, and you repeat it. When you find something that can align with your discourse, you interact.

The point is that you all share "the same stuff", stuff I'm not interested in. It's the other way around, the mass of internet arguments you're a part of lacks the kind of stuff I have. That's why you're so drawn to it.

Relax, it's all mostly unconscious behavior. It's not about you specifically, more the swarm you belong to.

matheusmoreira•6mo ago
I'm not "working as a collective" or anything of the sort. I'm not part of any "swarm" either. I merely try to come to my own conclusions to the best of my ability based on the information available to me. It's not like I have insider access.
alganet•6mo ago
I said relax, it's unconscious. Like you said you would refrain from replying to me, but you keep coming back. You can't avoid it.
coffeebeanHH•7mo ago
Hhhh I actually opened the link to truth social. It's fun how stupid a letter from a world 'leader' can sound. Feels a bit like being back in school.

Anyways. Fun would be if Lula goes for the run imposed by trump. Just tax imports from US by 200%, then trump goes 250. Add another 250% and so on.

matheusmoreira•7mo ago
Grab some popcorn then because it looks like Lula is heading down that path. Things are gonna get fun very soon.

Not even two days now and we've got leftists burning with patriotic fervor on social media. They've suddenly found a willingness to defend Brazil's sovereignty against US interference despite the fact they're unrepentant globalists. These are the same guys who hate the military and everything it represents. The same people who did everything in their power to destroy Bolsonaro, the guy who revived brazilian nationalism for a brief four years.

Watching this circus is truly a surreal experience.

owebmaster•7mo ago
Please don't bring the circus to HN.

> The same people who did everything in their power to destroy Bolsonaro, the guy who revived brazilian nationalism for a brief four years.

it is laughable to see Bolsonaro supporters destroy logic and call nationalism congressmen and ex-presidents asking for the US to tariff the Brazilian economy. But it is even more funny to see this backfiring - which is obvious, there is always a limit to how much you can attack your own country for political gains, including for the globalist far-right.

Lula is reelected now.

matheusmoreira•7mo ago
I'll stop posting if dang asks me to. Not you.

I didn't say the calls for tariffs were nationalism either. I said Bolsonaro managed to revive brazilian nationalism during the brief four years he was in power. I meant to imply that the current administration managed to destroy said nationalism. Destroying it was one of their explicit goals. They likened it to the denazification of Germany. Watching them appeal to nationalism now is just hilarious to me.

This is exactly what brazilians asked for and it's exactly what they should get. It's gotten to the point I think it'd be great if Lula was reelected. The brazilian right wing shouldn't have to spend years cleaning up the messes they leave behind only for them to come back later to enjoy the good times we've created. Let them hold onto power a little longer so that the bomb blows up in their hands.

Refrain from replying to me again if you can't muster enough respect to have a coherent discussion about our country's politics without calling others "minions". Bolsonaro is a coward who betrayed everyone who supported him. People went to jail for this guy while he was hiding in the USA like a rat. Don't call me a "Bolsominion".

tumsfestival•7mo ago
It's what happens when you don't play ball with the biggest bully there is this side of the pond. Not surprising at all though, the US has been continuously pushing their agenda around these parts for many decades now, even aiding the former military dictatorship, now aiding our former putschist president and his criminal family. Then they wonder why every day we're inching closer to China and their allies instead of them.
matheusmoreira•7mo ago
The real coup was perpetrated by the unelected judges of the supreme court all the way back in 2019.

https://news.ycombinator.com/item?id=39966382

https://news.ycombinator.com/item?id=36543423

Their power keeps increasing to this day. It disgusts me every time they utter the word democracy.

I for one am very happy to see Trump sanction this place. Right now it looks like he's the only person in the world able and willing to put pressure on this dictatorship of the judiciary. I hope I'm around to see him personally sanction everyone involved.

tumsfestival•7mo ago
You sound absolutely deranged to say the least.
matheusmoreira•7mo ago
You sound like you cannot refute even a single one of the arguments presented.

Not the first time people try to gaslight me and call me mentally ill for expressing my views. Please note that I'm absolutely open to counterpoints. I'm secretly hoping someone will convince me that this country isn't the judiciary dictatorship I believe it is. Sadly it looks like you're not going to be that person.