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Technical facts disproving political and tech claims on online child safety: Protecting children online requires knowing who is a child. Knowing who is a child requires knowing ages. Knowing ages requires knowing everyone's age across all devices, apps, and internet services. That requires age checking services. Age checking services cannot comply with government mandates to be "robust". "Robust" age checking originated in Australia and is now in US and EU legislation. It means "best endeavours" with specific legal intent. "Robust" age checking requires proving age beyond doubt. Age estimation services can never be "robust". You cannot have a "robust" service without verifying everyone's identity through government issued ID or extensive personal, financial, or behavioural data. Without enough data, device, app, or service access is denied until official ID is provided. Verifying every identity destroys privacy. Storing verification data on servers creates instant risk. Identity verification enables governments to monitor citizens and censor speech. As Larry Ellison said, people change behaviour when monitored through digital surveillance. Parents can already protect children from online harms using existing technology. In 2012, I demonstrated poor parental controls on BBC Newsnight, leading me to build early safety tools for Samsung and Apple. I also built the first Android time curfew capability 14 years ago. Today, iOS and Android offer built in controls to block unsuitable apps, websites, and content by age rating, alongside granular curfews. Real world risks like bullying exist online, but parents can manage access just as they manage real world exposure. Exhibit A: If parents can already block access for free on their own phones, why do governments push legislation that forces identity collection, exposing data to cybercriminals and tech companies? Exhibit B: Why are governments, tech companies, and NGOs not educating parents on existing settings that are free of charge and "robust", even while citing tragic cases to push legislation? In 2004, I co-founded the W3C standard for Content Labelling and URI Classification, co-inventing account and folder classification to label content based on risk and compliance. I advocated for voluntary account verification to stop impersonation long before people knew it was even possible. Mandatory identity verification to use a phone or internet service is dystopian control. I would never advocate or support that. I have advised the US DOJ, NCMEC, CEOP, and IWF on child exploitation detection. EU Chat Control and UK image scanning mandates will not tackle exploitation. They break end to end encryption and VPNs, introducing dangerous spyware, and puts more children at risk.

hay un problema bastante común en system design que se llama cache stampede. imaginate que tenés un dato que miles de usuarios consultan todo el tiempo. para no ir a la DB en cada request, lo guardás en cache durante 5 minutos. mientras está ahí, todas las requests leen desde cache y la base casi ni se toca. el problema aparece cuando pasan esos 5 minutos y el dato expira. si justo en ese momento llegan cientos o miles de requests, todas buscan el dato en cache, ninguna lo encuentra y terminan yendo juntas a la DB. de golpe, algo que casi no tocaba la base puede generar miles de consultas por el mismo dato. y esto puede saturar la DB, aumentar muchísimo la latencia y empezar a afectar también otras partes del sistema que dependen de ella eso es un cache stampede. ¿cómo lo evitás? (1) podés hacer que solo una request regenere ese valor en cache mientras las demás esperan. (2) y si tenés muchas keys con TTL similares, podés agregar jitter al TTL: una pequeña variación aleatoria para que no todas expiren juntas. así distribuís las expiraciones en el tiempo y evitás ese pico de carga.

I like that Microsoft Word hasn’t gotten better or gained any additional functionality in 20 years but does use 10x the RAM now. Good stuff Microsoft

bro thinks he's Magnus Carl- oh wait 🥶

Con todo el revuelo sobre la publicidad de Sídney Sweeney me quedé pensando: ¿Cuál es la diferencia entre apostar e invertir? Cuando invertimos, ¿estamos apostando? Algunas reflexiones: 👇👇👇 La diferencia fundamental está en de dónde viene el retorno esperado. 🔸Invertir Cuando invertís, colocás capital en un activo que produce o representa algo que puede generar riqueza. Por ejemplo: • Comprás una acción → participás de una empresa que vende productos, obtiene ganancias y puede reinvertirlas. • Comprás un bono → prestás dinero y recibís intereses. • Comprás un ETF de acciones → participás indirectamente de cientos o miles de empresas. • Comprás un inmueble → puede generar alquiler y/o prestar un servicio económico. 🔸Apostar Cuando apostás, tu ganancia proviene de las pérdidas de otros participantes. Es un juego de suma cero siempre. Invirtiendo podes perder plata. Pero no es de suma cero. Por ejemplo: Apostás $1.000 a que gana un equipo. Si acertás, cobrás. Si perdés, perdés los $1.000. El partido no produce riqueza adicional por el hecho de que hayas apostado. 🔸Cuidado No es simplemente: Invertir = seguro Apostar = riesgoso Eso sería incorrecto. Podés hacer una inversión extraordinariamente arriesgada y una apuesta relativamente probable. 🔸PERO NO ES TAN FÁCIL Ahh ya querías que todo fuera tan sencillo. Pero no. 🤔 ¿Cómo se diferencia invertir en una misma acción, pero en un caso la analizaste y conoces a la empresa y en otra simplemente compraste por mera especulación? “Está subiendo muchísimo, compro ahora y se la vendo más cara a otro dentro de dos días”. ¿Esto es invertir o apostar? 🤔 Y al revés: un casino puede tener probabilidades perfectamente calculables, pero eso no convierte el juego en inversión. ¿O si? Cuando el casino toma el otro lado de la apuesta, ¿está apostando o invirtiendo? 🤔 Esperanza matemática: el retorno esperado de apostar es siempre negativo. El de invertir… Bueno, queremos creer que lo podemos llevar a positivo 😝 Pero muchas inversiones pierden. Pero inclusive perdiendo, ¿eso era apostar? Una inversión arriesgada, ¿es apostar? 🔸 Creación de valor: El capital financia empresas, proyectos o infraestructura que producen bienes y servicios. Apostar es juego de suma cero. La ganancia de uno proviene directamente de la pérdida de otro. No se produce valor real. Entonces, ¿un derivado es invertir o apostar? En un contrato de futuros uno gana y el otro pierde. ¿Eso qué es? 🔸 Plazo: Invertir sería de largo plazo, pensado en años. Apostar se suele asociar con corto plazo. Pero dar liquidez a una empresa, ¿no es invertir? Especular en el corto plazo con el precio de una acción, ¿es invertir o especular? 🔸Hay quienes dicen que apostar consiste en arriesgar capital sobre un resultado incierto guiado por la suerte o el azar (juegos de azar, ruleta, eventos deportivos). ¿No hay suerte en las inversiones y algo de azar? — Dejé alguna respuesta pero muchas más preguntas. ¿Qué pensas?

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Right. Dario was already claiming that GPT2 was too dangerous to open source back in 2019. I made fun of them then. Everyone should make fun of them now.

Muy buen hilo sobre inversiones

His SECRET to Relieving Low Back Pain?!🤯

Piriformis Syndrome ??

Congrats Veselin from Uruguay!! piped.video/mZkuWQM5IyA?si=IrH9…

Commit yourself to these seven virtues: Honor, strength, courage, duty, justice, beauty, and truth.

Imaging having this bio @dhh

These are what the law enforcer see when they access your phones.

BBC: “There is so much hate on your platform” Elon: “What hate?” BBC: “There’s just a lot of hate” Elon: “What kind of hate?” BBC: “Well...I see a lot of hate” Elon: “Can you give me an example?” BBC: “There’s definitely hate” Elon: “So your evidence is basically that you personally feel like there is hate?” BBC: “ohhh....but there’s a lot of it” Elon: “How much?” BBC: “A lot” Elon: “Compared to what?” BBC: “Well...before” Elon: “Before what?” BBC: “Before there was this much hate” Elon: “Do you have data?” BBC: “I have concerns” Elon: “Do you have examples?” BBC: “I have observations” Elon: “Do you have numbers?” BBC: “People are worried” Elon: “Which people?” BBC: “People” Elon: “So basically...you arrived with a headline and forgot to bring the evidence?” Basically the entire BBC interview 😂 Elon absolutely slaughters BBC reporter in live interview

It really isn't. Embrace Peterson's simple advice: Clean your room. Then clean your computer. Don't succumb to sloppy thinking, sloppy living, or sloppy computers. (It's also just gross, and disgust is an important human instinct).

Your phone is always on for the wake word. iPhone, Android, it doesn't matter. your smart TV. your smart speaker. Amazon Echo, Google Home, HomePod. all listening for a wake word. all capable of capturing and logging more than they should. your laptop. webcam mic. always present. accessible by firmware if someone wanted it there. your smart watch. Apple just launched Siri Recap. an always-on feature that records ambient conversations, generates a title, summary, and key points, and stores them in your Siri app. yesterday. the person across from you. if they have AirPods Pro, Meta glasses, or a Ray-Ban with a camera, you are being recorded. you didn't consent to that. you have no way to know. and if you live in subsidized housing in New Hampshire: the ACLU just filed a class action because your landlord installed Mînut Monitor sensors inside your apartment without telling you. hundreds of millions of data points. movement. sound levels. activity patterns. inside your home. the wire used to require a federal agent, a judge, and a target. now it requires a software update.

Stop Stretching Your Hamstrings for Sciatica

Just had the creepiest scam ever happen 20 minutes ago. I got a call from my wife telling me she forgot her wallet and needed the credit card to pay for her gas. Except my wife was at home with me, and drives a Tesla. Same voice, bit... off, weird cadence but 100% sounded just like her. If she wasn't there, and it wasn't about gas I would have fallen for it. I entertained it for awhile to get more out of it, I was so confused. Must be some sort of voice deepfake. The responses were too fast for ai, I think it was a voice filter. I wish I had thought to record it. The future is about to get fucked. Warn your loved ones, do verbal passwords with your kids. Bit taken aback