Épisode 1 – Introduction au monde du quantique appliqué à la cybersécuritéPrésentation de la série et des intervenantsDiscipline : mathématiques, informatique et physique quantiqueObjectif : protéger les communications face aux menaces futuresNotions clés : clé secrète, chiffrement, confidentialitéComparaison cryptographie classique vs cryptographie quantique

US President Donald Trump has announced sweeping tariffs on global trade, adding taxes of as much as 50% to imports from some countries. The tariffs, he says, are “reciprocal” – calculated to address currency manipulation and trade barriers that other countries place on the US. However, when you look at how the new tariffs were actually calculated, that claim does not add up. Tim Harford speaks to Thomas Sampson, an associate professor at the London School of Economics, to understand what is going

In this episode, we answer the question we left hanging at the end of Episode 13: What is a sigma-algebra?We will explore the properties of a sigma-algebra and explain why we want our event space to be one. Next, we will discuss probability spaces in a simple yet rigorous way, which will set the stage for understanding random variables and the mathematical treatment of risk measures.Finally, we will discover why it can be inconvenient to swim naked.Are you ready to wear a swimsuit?Become a supporter

Send us a text In today’s episode, we’re talking about comparison problems: what they are, why they’re tricky, and how we can help students build strategies to solve them. We’re gonna start today’s episode with a problem. Omar made 22 baskets during practice. He made 9 more baskets than Eli. How many baskets did Eli make? This is a comparison problem and there are 3 types of comparison problems we can use with students. And they are all hard! We are chatting about: Different types...

Neighbours, everybody needs good neighbours, and since the end of the Second World War that’s exactly what the US and Canada have been. They’ve enjoyed free trade agreements, close knit economic ties - and not so friendly ice hockey matches. But recently this relationship has soured, with President Trump calling them “one of the nastiest countries to deal with”. It looks like the era of mostly free trade is over, with a raft of tariffs set to come into force on April the 2nd, or “liberation day”

Dr. Wall highlights key findings from two meta analysis research articles about dyscalculia.

Nel mio ultimo articolo su questo blog sostenevo che bisogna mettere al centro i problemi che si vogliono risolvere, non le tecnologie che si vogliono adottare, anzi, di per sé, non si dovrebbe neppure voler adottare una tecnologia, ma trovare le tecnologie corrette a partire dal problema, ma questa è tante volte solo teoria: in pratica, molto spesso si parte avendo già in testa delle tecnologie, e non è neppure sbagliato, se comunque si mantiene il focus sul problema.Ho fatto cenno anche ad un

This account recounts a nightmarish incident at PayPal where a flawed implementation of Shamir Secret Sharing, a cryptographic technique for distributing a secret key among multiple parties, nearly caused a catastrophic system failure. The author, a PayPal engineer, explains the process of Shamir Secret Sharing and how he implemented it to improve security by distributing the master encryption key. However, a seemingly minor incompatibility between the Linux and Solaris operating systems, involving

We cover Anthropic’s groundbreaking Model Context Protocol (MCP). Though it was released in November 2024, we've been seeing a lot of hype around it lately, and thought it was well worth digging into. Learn how this open standard is revolutionizing AI by enabling seamless integration between LLMs and external data sources, fundamentally transforming them into capable, context-aware agents. We explore the key benefits of MCP, including enhanced context retention across interactions, impr...

Send us a text Imagine a student looking at you, frustrated, saying, 'I don’t get it.' It’s tempting to step in and rescue them, right? Today, we’re talking about productive struggle—why it’s a game-changer for math classrooms and how to make it happen without letting kids flounder. We are chatting about: What productive struggle isWhy it's important to let students struggle in the math classroomHow to foster productive struggle Links mentioned in this episode: 📘 Principles to Acti...

In this episode, we come back to the definition of risk and start discussing how we can measure it. That is why we need to introduce risk measures. But that requires us to be more formal and speak about the sample space and the event space in a more mathematical way.Ready to discover the power set?We are paving the way to introduce the probability space, a pivotal concept for us.Ready to take the risk?Become a supporter of this podcast:

Migrating the US government to quantum-resistant cryptography is hard, luckily the gamer presidents are on it. This episode is extremely not safe for work, nor does it reflect the political opinions of, well, anybody. "Security Cryptography Whatever" is hosted by Deirdre Connolly (@durumcrustulum), Thomas Ptacek (@tqbf), and David Adrian (@davidcadrian)

Hardworking women are the backbone of our communities, families, and relationships—yet they rarely receive the recognition they deserve. This heartfelt episode celebrates the countless contributions women make every day, from managing households and raising children to supporting their partners and pursuing their own dreams. "The true glue to the family, the true glue to everything," as we describe them, women across all backgrounds deserve our respect and appreciation. Whether they're schoo...

On 27 December 2024, astronomers spotted an asteroid that was potentially heading towards earth.Named 2024 YR4, it was estimated to be between 40m and 90m across, with the potential to cause massive damage if it hit a populated area of the planet.The chances of that happening, however, seemed to fluctuate significantly - ranging from 1% to a peak of 3%, before falling to virtually zero. Tim Harford investigates what was going on, with the help of Davide Farnocchia, a navigation engineer at

The finite developments theorem in pure lambda calculus says that if you select as set of redexes in a lambda term and reduce only those and their residuals (redexes that can be traced back as existing in the original set), then this process will always terminate. In this episode, I discuss the theorem and why I got interested in it.