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Tiago Peixoto

@tiago.skewed.de

4.7K followers 580 following 470 posts

Statistical mechanic, secular Bayesian. Prof. of Complex Systems and Network Science @ IT:U, Austria Head of the “Inverse Complexity Lab”. @invcomplexity.skewed.de https://skewed.de/lab

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Tiago Peixoto @tiago.skewed.de · Mar 12

🚨 New paper on ArXiv:

“Uncertainty quantification and posterior sampling for network reconstruction”

TL;DR; We present an efficient method to sample the entire ensemble of possible network reconstructions that are compatible with an indirect observation, e.g. a dynamics.

Short thread: 1/N

Tiago Peixoto @tiago.skewed.de · 1d

The writing was on the wall from day 0. Bluesky was never decentralized, it's not really intended to be, and it is a matter of time before it gets enshitified just like Twitter.

The right conceptual model should be like mastodon, but without the brain damage. But alas...

Chanda Prescod-Weinstein 🌌 @chanda.blacksky.app · 1d

I don't even know what to say about @aaron.bsky.team announcing that actually they feed all images posted on Bsky into an AI that just a year ago they told everyone they had banned from using Bsky images

Tiago Peixoto @tiago.skewed.de · 1d

Thank you, I'll try it out.

Tiago Peixoto @tiago.skewed.de · 1d

Is this what you are referring to? github.com/iains/gcc-da...

Does it have M4 optimization support on par with clang/xcode?

Are the binaries ABI compatible with what clang/xcode produces?

Ideally I would like to use GCC with the formula for graph-tool: formulae.brew.sh/formula/grap...

GitHub - iains/gcc-darwin-arm64: GCC master branch for Darwin with experimental support for Arm64. Currently GCC-16.0.0 [October 2025]

GCC master branch for Darwin with experimental support for Arm64. Currently GCC-16.0.0 [October 2025] - iains/gcc-darwin-arm64

Tiago Peixoto @tiago.skewed.de · 1d

Kudos for contributing to GCC!

But then, you must understand very well when I say that GCC isn't as well supported in MacOS as in GNU/Linux.

Also, -march/mtune is not really about cross compilation, but *native* comp., and that not being able to optimize for a native platform is a big deficiency.

Tiago Peixoto @tiago.skewed.de · 1d

Also, if you want a challenge, try to develop a homebrew recipe that uses GCC instead of xcode.

For an even bigger challenge, try to get that recipe merged.

Utter nightmare.

Tiago Peixoto @tiago.skewed.de · 1d

I'm not talking simply about Darwin support, but about native apple silicon support (aarch64) on Darwin.

Initial support for chips up to M3 has been merged only in the very latest release (www.phoronix.com/news/GCC-15-...). Support for M4 is inexistent.

www.phoronix.com

Tiago Peixoto @tiago.skewed.de · 1d

GCC doesn't even support aarch64 on Darwin, so you can't build native binaries on M1/M4. There's no interest from apple to support GCC on the platform, so it always lags behind. It's not a first class citizen.

Tiago Peixoto @tiago.skewed.de · 1d

Ranges, views, and coroutines. I also like that 'auto' can really be used anywhere, as well as captures. And now we have a print() function!

Tiago Peixoto @tiago.skewed.de · 1d

To be honest, I have no idea. I've been using this language for more than 20 years. All the references I read as a beginner (e.g. Stroustrup) have surely been updated, but I haven't kept up with them.

Tiago Peixoto @tiago.skewed.de · 1d

That's incorrect.

You can *install* GCC on MacOS. Actually using it is a completely different issue, since the platform is not well supported, and using it is a nightmare of bugs and incompatibility.

Tiago Peixoto @tiago.skewed.de · 1d

I've been porting some code from C++17 to C++23. Many nice improvements in the language!

A side note: Clang is so much worse than GCC in almost everything, from compilation times, runtime performance, to C++23 coverage... GCC alone is a good reason to dump MacOS for GNU/Linux (among many others).

Reposted by Tiago Peixoto

Kevin M. Kruse @kevinmkruse.bsky.social · 4d

When you drag a woman by the hair, beat her and force her to kiss your flag, that’s how you tell the world you are the Good Guys

Jordan Uhl @jordanuhl.com · 4d

Absolutely heinous.

Reposted by Tiago Peixoto

Zachary Neal @zpneal.bsky.social · 7d

Want to promote transparency and clarity in network research by helping develop 𝐆𝐮𝐢𝐝𝐞𝐥𝐢𝐧𝐞𝐬 𝐟𝐨𝐫 𝐑𝐞𝐩𝐨𝐫𝐭𝐢𝐧𝐠 𝐀𝐛𝐨𝐮𝐭 𝐍𝐞𝐭𝐰𝐨𝐫𝐤 𝐃𝐚𝐭𝐚 (𝐆𝐑𝐀𝐍𝐃)?

Sign up to get involved here: tinyurl.com/help-with-GR...

▪️ All career stages welcome
▪️ All fields welcome
▪️ Be compensated for your time

GRAND Recruitment

Complete this short questionnaire to help develop Guidelines for Reporting About Network Data (GRAND).

Reposted by Tiago Peixoto

Drop Site @dropsitenews.com · 11d

Tiago Peixoto @tiago.skewed.de · 15d

2015 called, and they want your meme expectations back.

Tiago Peixoto @tiago.skewed.de · 15d

Pet peeve of the day: Ordinary graphs *do not* encode only "pairwise" interactions!

For example, a majority function of several inputs is encoded by a graph, but the interaction cannot be decomposed into independent pairwise ones.

Please stop spreading this silly meme!

Tiago Peixoto @tiago.skewed.de · 17d

“Call me old-fashioned, but I like my tiramisu scooped from a bowl and hitting my plate with a wobbly splat.”

There's something wrong with the British.

The Guardian @theguardian.com · 17d

Campanelle, London EC3: ‘A great illustration of the pros of working from home’ - restaurant review | Grace Dent on restaurants

Campanelle, London EC3: ‘A great illustration of the pros of working from home’ - restaurant review | Grace Dent on restaurants

A corporate-facing and not-very-Italian-at-all restaurant

www.theguardian.com

Reposted by Tiago Peixoto

Musa Okwonga @okwonga.bsky.social · 18d

Hell on earth.

Rima I Anabtawi @rimaanabtawi.bsky.social · 18d

Over 50 Gazans Reportedly Killed by IDF, Including Family of Al-Shifa Hospital Director

www.haaretz.com/israel-news/...

Over 50 Gazans reportedly killed by IDF, including family of Al-Shifa Hospital director

www.haaretz.com

Reposted by Tiago Peixoto

The Guardian @theguardian.com · 22d

Israel has committed genocide in Gaza, says UN inquiry

Israel has committed genocide in Gaza, says UN inquiry

Commission’s 72-page legal analysis cites examples including scale of killings, aid blockages and forced displacement * Middle East crisis – live updates A UN commission of inquiry concluded on Tuesday that Israel had committed genocide in Gaza and that top Israeli officials including the prime minister, Benjamin Netanyahu, had incited these acts. It cited examples of the scale of the killings, aid blockages, forced displacement and the destruction of a fertility clinic to back up its genocide finding, adding its voice to rights groups and others that have reached the same conclusion. Continue reading...

www.theguardian.com

Tiago Peixoto @tiago.skewed.de · 26d

That's a question I find myself pondering all the time: how much of clearly bad but prominent science can be attributed to charlatanism or to incompetence. It's a mixture, but at the surface the confident fool and the cynical imposter are nearly indistinguishable.

Julia M. Rohrer @dingdingpeng.the100.ci · 26d

Sometimes I wonder whether people are acting strategically (they know they’re producing bullshit but it wins) or dumb (they sincerely believe this was insightful) but actually there’s probably no difference in many cases. Like the criterion for whether you believe is whether it’s rewarded.

Tiago Peixoto @tiago.skewed.de · 26d

Bolsonaro sentenced to 27 years behind bars! 🤘

Folha de S.Paulo @folha.com · 27d

Bolsonaro é condenado a 27 anos e 3 meses de prisão

Entenda a fixação da pena de 27 anos e 3 meses de prisão para Bolsonaro

Além do ex-presidente, a Primeira Turma também condenou outros sete réus do núcleo central do episódio

www1.folha.uol.com.br

Tiago Peixoto @tiago.skewed.de · 29d

To those that post a screenshot of a paper without a link: seriously?

Tiago Peixoto @tiago.skewed.de · 29d

Bad news for MDL!

www.nature.com/articles/d41...

Compression causes cancer cells to start spreading

The switch between proliferation and invasion is triggered by mechanical force.

Tiago Peixoto @tiago.skewed.de · Sep 7

There's nothing incredible about this at all. Would anyone seriously expect a tech CEO to stand up to a sitting US president?

Goes also to show how much power the US presidency has. Remember this the next time a president you actually voted for ”failed” to bring about positive change.

Ketan Joshi @ketanjoshi.co · Sep 6

Incredible clip of tech CEOs fawning over Donald Trump. Someone store this clip in the underground archive vault

Tiago Peixoto @tiago.skewed.de · Sep 5

The power law found is no different from the 1/r^a scaling present in the age-old and ubiquitous gravity law of mobility... It's literally the exact same thing. 🤷

But it's interesting that it seems to go all the way down to tens of meters.

Sune Lehmann @sunelehmann.com · Sep 4

Super excited about our new paper on mobility that's out in Nature Human Behavior www.nature.com/articles/s41...

I love this paper for many reasons, but one is that we find beautiful 1/x power-law that spans 6 orders of magnitude hidden within the "ugly" distribution raw mobility data.

A very straight line on a loglog plot. So straight that even Aaron Clauset would call this a power-law