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Vitor Py

@vitorpy.com

Brazylijczyk w Polsce. Living in PoznaΕ„, formerly Dublin, London, and Rio de Janeiro. Computer scientist. Zero-knowledge proofs, applied cryptography. Speaks πŸ‡§πŸ‡·πŸ‡¬πŸ‡§ + really bad πŸ‡«πŸ‡·πŸ‡΅πŸ‡±πŸ‡³πŸ‡± - always looking for conversation practice! https://vitorpy.com

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Latest posts by Vitor Py @vitorpy.com

Isn't "trust, but verify" a Russian saying?

10.03.2026 18:18 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Maps from Flightradar 24 show that air travel between Europe and Asia is increasingly becoming a challenge. There are only two corridors left which allow uninterrupted travel.

09.03.2026 14:03 πŸ‘ 462 πŸ” 106 πŸ’¬ 13 πŸ“Œ 12
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05.03.2026 01:56 πŸ‘ 1614 πŸ” 309 πŸ’¬ 55 πŸ“Œ 46

But the thing he said about LaTeX is pure heresy. We need atproto-native LaTeX publishing! With atproto-native Zotero builtin!

04.03.2026 19:46 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

TIL Yann and I have similar ideas about how to change publishing.

The additions I'd make are
- Make conferences smaller w/ presentations by invite (similar to @togelius.bsky.social suggestion)
- Build social media tooling for sharing/discussion and paper meta data to support it.

04.03.2026 14:45 πŸ‘ 6 πŸ” 1 πŸ’¬ 1 πŸ“Œ 0
Slide: We ended up in casinos

Not by choice, but by design platforms built to extract attention, maximise engagement, and serve private profit above all else.

Slide: We ended up in casinos Not by choice, but by design platforms built to extract attention, maximise engagement, and serve private profit above all else.

It's not just that we live under private government of the monopolies, but it's private government by casinos. #Rebuild

03.03.2026 13:09 πŸ‘ 33 πŸ” 9 πŸ’¬ 1 πŸ“Œ 2

Sorry, I have no experience with Rocq :(

04.03.2026 07:43 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Most common flow so far appears to be to use a "generic" model (ChatGPT 5.3 gets a lot of praise) for generating informal proofs, with specialized models doing autoformalization and feedback.

04.03.2026 07:35 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
Aristotle API

Oh, you should try Aristotle from Harmonic, which does Lean autoformalization. It's downright impressive.

aristotle.harmonic.fun

04.03.2026 07:33 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Alive and moving -> huge heaps of money that would bring me close to or at my retirement goal.

Cooked within cultural context -> yeah, definitely free

Weird.

03.03.2026 21:35 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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And some still insist there's no value to generative models πŸ€¦β€β™‚οΈ

03.03.2026 20:38 πŸ‘ 14 πŸ” 4 πŸ’¬ 1 πŸ“Œ 2

Don't forget Abu Dhabi!

03.03.2026 20:25 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

What is so maddening about Europe these days is that even in Europe this is not the Big Story. We are so captured by American drama, and the easy content its news providers overwhelm us with.

03.03.2026 14:00 πŸ‘ 62 πŸ” 13 πŸ’¬ 6 πŸ“Œ 0
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DENMARK SAYS ITS WILLING TO FUND FRENCH EU+ DETERRENT POLICY

After Macrons speech yesterday Denmark is willing to assist in funding an EU+ nuclear deterrence policy. Others are expected to follow. It’s quite extraordinary how quickly the realities of the situation are dawning on EU+ nations.

03.03.2026 09:13 πŸ‘ 162 πŸ” 39 πŸ’¬ 6 πŸ“Œ 4

It isn't personal, it's a mere acknowledgement of the behavior of your country mates.

03.03.2026 09:40 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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The French singing La Marseillaise in a nuclear submarine base is deeply symbolic.

France built its own independent nuclear deterrent after WWII to never again have to suffer a similar humiliation. Now France is offering to ”advance” that deterrent to other European countries.

03.03.2026 08:14 πŸ‘ 539 πŸ” 136 πŸ’¬ 18 πŸ“Œ 45
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U.S. Troops Were Told Iran War Is for β€œArmageddon,” Return of Jesus Advocacy group reports commanders giving similar messages at more than 30 installations in every branch of the military

EXCLUSIVE: At more than 30 installations, U.S. commanders told troops the war on Iran is a Christian war.

The Military Religious Freedom Foundation has been β€œinundated” with more than 110 complaints.

One NCO said they were told the U.S. war is to bring about Armageddon and the return of Jesus…

03.03.2026 01:54 πŸ‘ 12840 πŸ” 6394 πŸ’¬ 1319 πŸ“Œ 4135

Like it or not, the US voted for him twice.

03.03.2026 09:04 πŸ‘ 4 πŸ” 0 πŸ’¬ 2 πŸ“Œ 0

Lots of ❀️ from a foreigner living in the beautiful Wielkopolska!

01.03.2026 10:53 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Hello, thank you for visiting our Bluesky page! Another Day in Poland is run by two Polish people and one foreigner, all living in Poland. Our aim is to share the culture and history of this fascinating country. We share the things we see every day.

🧡 1/6

01.03.2026 10:47 πŸ‘ 13 πŸ” 4 πŸ’¬ 1 πŸ“Œ 1

Secretary Hegseth announced this afternoon that DOD will cease ALL graduate study by military personnel at universities including MIT, all the Ivies, Stanford, etc because such schools teach "the enemy's wicked ideology" to officers.

thehill.com/policy/defen...

27.02.2026 21:48 πŸ‘ 2496 πŸ” 1036 πŸ’¬ 432 πŸ“Œ 767
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Most programmers are taught that L1 is the β€œtop level” cache on x86.


It’s not quite true anymore!


Intel calls it the Decoded Stream Buffer (DSB), AMD the OpCache.

Only enough room for ~4,000 micro-ops, but there are interesting ways to take advantage of it.

27.02.2026 19:42 πŸ‘ 150 πŸ” 18 πŸ’¬ 4 πŸ“Œ 1

You’re correct in pointing to this, but the blame doesn’t necessarily lie with the career logisticians, but rather in the acquisition community that focused on lowering life cycle costs and the mass implementation of performance based logistics contracts.

24.02.2026 21:21 πŸ‘ 17 πŸ” 6 πŸ’¬ 2 πŸ“Œ 0

Euronews: European Commission President Ursula von der Leyen announced the β€œOne Europe, One Market” strategy, a plan to fully integrate the EU’s single market by 2027 to help the bloc catch up with the United States and China.

24.02.2026 06:51 πŸ‘ 136 πŸ” 35 πŸ’¬ 1 πŸ“Œ 0
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hello fellow kids

20.02.2026 22:55 πŸ‘ 2934 πŸ” 260 πŸ’¬ 221 πŸ“Œ 208

Amazing!

22.02.2026 00:04 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Just published: Bringing End-to-End Encrypted AI to Linux with TPM-Backed Passkeys. Built on @vitorpy.com's work. I contributed patches for Brave and Firefox support and made the WebAuthn PRF extension work during sign-on. ffoerg.de/posts/2026-0...

21.02.2026 20:47 πŸ‘ 1 πŸ” 1 πŸ’¬ 1 πŸ“Œ 0
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Okay, this is quite outstanding from Bedford Council.

19.02.2026 08:26 πŸ‘ 11936 πŸ” 3081 πŸ’¬ 204 πŸ“Œ 242
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ignore the rumors, computer science is still cool

here's my predictions for 2026

18.02.2026 18:34 πŸ‘ 152 πŸ” 13 πŸ’¬ 6 πŸ“Œ 0
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πŸ‡©πŸ‡ͺπŸ‡ΊπŸ‡Έ Germany plans to massively expand its foreign intelligence agency’s powers, fearing the U.S. could halt intelligence sharing under Trump, - POLITICO

Berlin wants the BND to gain authority for sabotage, offensive cyber ops, AI surveillance and broader espionage.

18.02.2026 11:02 πŸ‘ 216 πŸ” 50 πŸ’¬ 5 πŸ“Œ 4