icascudo.bsky.social
Ignacio Cascudo
@icascudo.bsky.social
190 followers 170 following 68 posts
Mathematician and cryptographer (do not confuse with cryptobro). Working at IMDEA Software Institute. Organizing Eurocrypt 25. Oviedo->Amsterdam->Aarhus->Aalborg->Madrid.
Posts Media Videos Starter Packs
icascudo.bsky.social
Ignacio Cascudo @icascudo.bsky.social · 13d
Oh I see you already said that, my bad
icascudo.bsky.social
Ignacio Cascudo @icascudo.bsky.social · 13d
And not only do cars waste space on the road, but also they waste space when parked, taking room from sidewalks, bike lanes etc.
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haydenstarr.bsky.social
Hayden Starr @haydenstarr.bsky.social · 20d
There are simple changes we can make to our cities that will have vast and ongoing positive effects on the lives of community members.

Community leaders with vision are pulling up concrete and replacing it with plant life.
brenttoderian.bsky.social
Brent Toderian @brenttoderian.bsky.social · 21d
Smart cities know that, as hot as they already are, they’re just going to keep getting hotter. Greening the city not only cools it down, it cleans the air, quiets the noise, improves mental health & happiness, saves public money, & more. Strand Aldwych, London. 2021 vs. 2025. Via @modacitylife.com
Before and after images of street green g in central London UK
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brenttoderian.bsky.social
Brent Toderian @brenttoderian.bsky.social · 21d
Every year, billions of vehicles worldwide shed an estimated 6 million tonnes of tire fragments. These tiny flakes of plastic, generated by normal driving, account for 28% of microplastics entering the environment globally.

Heavy vehicles eg SUVs/EVs especially.

Via @us.theconversation.com
Car tyres shed a quarter of all microplastics in the environment – urgent action is needed
Tiny flakes of plastic, generated by the wear and tear of normal driving, eventually accumulate in the soil, in rivers and lakes, and even in our food.
theconversation.com
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belmonte.bsky.social
Eva Belmonte @belmonte.bsky.social · 22d
Se me revuelve el estómago de la rabia. Esta gente, que se dedica sistemáticamente a esparcir mentiras y odio, se monta una fundación contra la censura, para la libertad, para apoyar el periodismo... Con dos cojones. Y gracias a eso, quienes les donen tendrán deducciones fiscales. (sigo)
elboenuestrodecadadia.es
El BOE nuestro de cada día @elboenuestrodecadadia.es · 22d
Javier Cárdenas, junto a Miguel Durán y su sobrino, montan una fundación para, dicen ellos y cito textual: "apoyar el periodismo" y "promover que la ciudadanía tenga acceso a información libre, veraz, plural y exenta de censura". boe.es/boe/dias/202... #BOE
boe.es
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theguardian.com
The Guardian @theguardian.com · 22d
Human-made global warming ‘caused two in three heat deaths in Europe this summer’
Human-made global warming ‘caused two in three heat deaths in Europe this summer’
Researchers from Imperial College London say 16,500 deaths caused by hot weather brought on by greenhouse gases Human-made global heating caused two in every three heat deaths in Europe during this year’s scorching summer, an early analysis of mortality in 854 big cities has found. Epidemiologists and climate scientists attributed 16,500 out of 24,400 heat deaths from June to August to the extra hot weather brought on by greenhouse gases. Continue reading...
www.theguardian.com
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sinergia.bsky.social
Sinergia Sin Control @sinergia.bsky.social · Aug 25
Está vez ha caído hasta la web de correos. Empiezo a pensar que hasta que Tebas no tire la web del Marca, no va a pasar nada.
eldiario.es
elDiario.es @eldiario.es · Aug 20
El inicio de la nueva temporada de fútbol marca el regreso de los bloqueos de Internet de LaLiga
El inicio de la nueva temporada de fútbol marca el regreso de los bloqueos de Internet de LaLiga
La patronal del fútbol vuelve a impedir el acceso a miles de webs sin relación con la piratería tras la vuelta de la competición, una práctica que está siendo analizada por el Tribunal Constitucional
www.eldiario.es
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brenttoderian.bsky.social
Brent Toderian @brenttoderian.bsky.social · Aug 24
The 2025 Happy City Index is in, and @momentummag.bsky.social is pointing out that many of the world’s happiest cities are also some of the best places to ride a bike. Vancouver is #11, the highest ranked city in North America (cue the usual debates).
The Happiest Cities in the World are Also the Most Bicycle Friendly
The 2025 Happy City Index is in and the world's happiest cities are also some of the best places to ride a bike.
momentummag.com
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icascudo.bsky.social
Ignacio Cascudo @icascudo.bsky.social · Aug 16
*they
icascudo.bsky.social
Ignacio Cascudo @icascudo.bsky.social · Aug 16
This is funny, just a couple of days ago I saw some in my hometown of Oviedo, northern Spain and had to google what there were.
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samuelromaporta.bsky.social
Samuel Romero @samuelromaporta.bsky.social · Aug 9
En los últimos 4 años, Madrid ha perdido 78.616 árboles maduros según datos del propio Ayuntamiento. No hablamos de plantones, sino de árboles grandes y verdes que tardaron décadas en crecer y que proporcionaban servicios ecosistémicos irreemplazables. Esto es ecocidio urbano.
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brenttoderian.bsky.social
Brent Toderian @brenttoderian.bsky.social · Aug 5
Smart cities know that, as hot as they already are, they’re just going to keep getting hotter. Greening the city not only cools it down, it cleans the air, quiets the noise, improves mental health & happiness, saves public money, & more. Strand Aldwych, London. 2021 vs. 2025. Via @modacitylife.com
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sonokoworld.bsky.social
sonokoworld.bsky.social @sonokoworld.bsky.social · Jul 30
Elon strikes again - Grok is going to get people killed with false information. AI is not a reliable source, people! #earthquake #tsunami #russia #hawaiitsunami
matthewcort.land
Matthew Cortland (they) @matthewcort.land · Jul 30
we're fucked
Sam@SamAshleyBlogs • 19m Stop reporting this, it's wrong. Ill 3.1K .. 4 Ili 395. 贝 Grok v @grok • 17m I appreciate the feedback, but per the latest from tsunami.gov as of July 30, 2025, no active tsunami warning exists for Hawaii-it was canceled after buoy data showed no waves. Advisories remain for parts of Alaska, CA, OR, WA, BC. Please verify directly; happy to Show more 171 1hil 2.6K 贝 Trumpsucks @trumpsucks72 • 14m If you go to tsunami.gov, at the top of the page there's a big red bar that's says TSUNAMI WARNING. 1 171 3 1hil 324 Grok t x1@grok.12m I checked tsunami.gov—no active tsunami warning for Hawaii; it was canceled July 29 after buoy data showed no waves. The red bar likely refers to ongoing warnings for Alaska (Aleutians) and California (Cape Mendocino to OR border). Advisories remain for other West Coast areas. Stay safe! Sources: PTWC, NOAA. O Ask Grok 17 Ill
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dfaranha.bsky.social
Diego F. Aranha @dfaranha.bsky.social · Jul 5
Well, this horrible idea refuses to die so we should refuse to let it pass and start organizing again.

ec.europa.eu/commission/p...
Commission presents Roadmap for effective and lawful access to data for law enforcement
The European Commission presented today a Roadmap setting out the way forward to ensure law enforcement authorities in the EU have effective and lawful access to data.
ec.europa.eu
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icascudo.bsky.social
Ignacio Cascudo @icascudo.bsky.social · Jul 9
www.theguardian.com/technology/2... So when again is the EU banning X? Or at least when are all EU politicians going to stop using it?
Musk’s AI firm forced to delete posts praising Hitler from Grok chatbot
The popular bot on X began making antisemitic comments in response to user queries
www.theguardian.com
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alexbici.bsky.social
Alejandro Cencerrado 7291 @alexbici.bsky.social · Jul 9
Què diferente sería Madrid si se lo pusiéramos fácil a la gente para ir así sin jugarse la vida.
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brenttoderian.bsky.social
Brent Toderian @brenttoderian.bsky.social · Jul 2
“As mayors of 2 of the world’s great cities, we see every day how the climate emergency is already reshaping people’s lives…From deadly heatwaves & devastating floods to rising inequality & health crises driven by air pollution…”

@annehidalgo.bsky.social & @london.gov.uk call out campaigns of lies.
In London and Paris, we’ve experienced vicious backlash to climate action. But we’re not backing down | Sadiq Khan and Anne Hidalgo
Around the world, well-funded, organised climate deniers are spreading lies about the crisis. We call on governments and tech companies to step up, say London mayor Sadiq Khan and Paris mayor Anne Hid...
www.theguardian.com
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brenttoderian.bsky.social
Brent Toderian @brenttoderian.bsky.social · Jul 5
As our cities get hotter and hotter, dark coloured buildings make no rational sense, even if you like that aesthetic (I do).

The same goes for dark coloured roofs.

And dark coloured streets and parking lots with dark coloured asphalt.

That really should be obvious.
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alexbici.bsky.social
Alejandro Cencerrado 7291 @alexbici.bsky.social · Jul 3
Curiosamente la mayoría de la gente cree que su huella de carbono depende de rehusar bolsas, beber en pajitas de papel y poner bombillas LED. Los datos muestran una realidad muy distinta: menos coche y menos carne. Para eso, claro está, hay que darle alternativas a la gente.
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mccurley.bsky.social
mccurley.bsky.social @mccurley.bsky.social · Jul 2
NSF budget request for 2026 cuts Mathematical and Physical Sciences by 75%. It's a bloodbath. nsf-gov-resources.nsf.gov/files/00-NSF...
nsf-gov-resources.nsf.gov
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namurii.bsky.social
Na @namurii.bsky.social · Jun 30
Odio el calor
Odio el calor
Odio el calor
Odio el calor
Odio el calor
Odio el calor
Odio el calor
Odio el calor
Odio el calor
Odio el calor
Odio el calor
Odio el calor
Odio el calor
Odio el calor
Odio el calor
Odio el calor
Odio el calor
Odio el calor
Odio el calor
Odio el calor
Odio el calor
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brenttoderian.bsky.social
Brent Toderian @brenttoderian.bsky.social · Jun 30
Here’s a good question — why is riding a bicycle in the city turning into [actually, being deliberately turned into] a culture war?

Read this @momentummag.bsky.social article.

It doesn’t need to be this way. It’s just smarter transportation that makes urban movement easier for EVERYONE.
Why is Riding a Bicycle in the City Turning Into a Culture War
Here are some key reasons why a safety and efficiency issue is turning into a bicycle culture war.
momentummag.com
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dulwichquantum.bsky.social
Dulwich Quantum Computing @dulwichquantum.bsky.social · Jun 29
So What Do We Know QC To Be Good For?
- Simulating quantum physics and chemistry
- Breaking current public-key encryption (RSA, DH, ECC)
- Eventually, modest (square-root) speedups from Grover
- We’ll have to get lucky for most other applications!
(The world has been systemically lied to about this)
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icascudo.bsky.social
Ignacio Cascudo @icascudo.bsky.social · Jun 27
Y perdería muchos más si las instituciones públicas españolas y europeas dejaran de utilizarlo, lo cual debería haber ocurrido hace mucho tiempo.
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tomflood.bsky.social
Tom Flood @tomflood.bsky.social · Jun 24
One reason I think it’s important to continue to highlight the disparity on our streets is that most people just don’t see it.

Despite it being obvious to some, so many people don't have clarity because we have done such an incredible job of normalizing this imbalance.
image of a white truck with various safety features listed around it, next to two kids riding in a painted bike lane with the word Paint below them.
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