Less Wrong

**3D Workshop** * **Ontwerpen met Fusion360** * **Scannen in 3D** * **Het gebruik van 3D printers** **Je bent nu welkom in de nieuwe locatie NewTechPark** Je kunt ook online aan deze fysieke bijeenkomst deelnemen. De bijeenkomst is dan op de locatie te volgen. Als je [hier](w.j.put@hccnet.nl) vooraf een mailtje stuurt kun je dinsdagavond tussen 19.00 en 20.00 uur inloggen met Jitsi voor vragen, of ter kennismaking met hcc!3D. Online neem je deel aan de bijeenkomst met [https://wij.hcc.nl/3D](https://wij.hcc.nl/3D) [(Alleen toegang als je zichtbaar bent met voor- en achternaam. )](https://wij.hcc.nl/3d)

Thierry Berger is bringing an exclusive Rustlang themed [Techy Cards](https://github.com/ThierryBerger/techycards) edition, come to play and go home with your playable booster! Date: Tuesday May 19th 19H30–21H30 Location: Bunk Hotel Utrecht Catharijnekade 9, Utrecht, NL

Join us for an evening of good vibes! Whether you’re a local or an expat, Mingle Mania is the perfect place to socialize and make friends or even to practice languages. 🤝🤼‍♂️💬🙋‍♂️🫂 👉 Join [https://chat.whatsapp.com/GopSuzuFKRBKeYVKQrX4pE](https://chat.whatsapp.com/GopSuzuFKRBKeYVKQrX4pE) The group has many regular members, we intend to do various type of events, the goal is to build a strong community for all sorts of activities. If you have an event idea that you would like to see happen, let us know. We generally have about 20 participants, the age is between 20 and 60 averaging somewhere around 30, language exchange is not strictly enforced, culture exchange happens naturally. **mingle** (verb, intransitive): to move among people and talk to them, especially at a social event. 📍 **What We Are:** * A diverse group of locals and expats * ...going out at least every Tuesday 😊 🆓 **Event Details:** * It is free to join and operated on a voluntary basis! * Please honor the bar by ordering at least one drink.

Hi Everyone, This is our weekly open hackerspace evening! Usually from 19:00 :-) Feel free to drop by, come and nerd with us! See this Tuesday! We're in room 126, ring the room number and we'll open the door. We're located on the first floor

Do you want to meet fellow Women in Rust at RustWeek 2026? Join our friendly and vibrant community for lunch on Tuesday 19 May at 12.45pm CEST. Find us at a dedicated table at the raised area in the Speys (lunch area). You can access the area via the stairs in the lunch area. This will be an opportunity to share experiences, expand your network, and simply enjoy a chat with like-minded individuals. Please note that a RustWeek 2026 ticket is required to enter the venue. More info at https://2026.rustweek.org.

Every Tuesday, the group 024 Waalrunners go for a run at a distance of between 7km - 10km depending on the group. Everyone is welcome to join, you just need to turn up at 20:00 on Tuesday in front of Cafe De Hemel. There are different routes every time, and the group welcome all new people to join them. [https://www.facebook.com/024waalrunners-710731759317504](https://www.facebook.com/024waalrunners-710731759317504)

**Please note:** registration for this event is **not** via meetup.com; this is an announcement only! See below on how to buy tickets for the event. **RustWeek 2026!** RustNL is incredibly excited to announce the 4th edition of our conference. The world's biggest Rust conference includes one day of workshops, two days of talks (in 3 parallel tracks), a hackathon, social activities, and more! The conference, on Tue & Wed May 19-20, is the main event. **Conference tickets for individual developers** The regular price for conference tickets for individuals are priced at €237.50. With this link, you can get a 10% discount on individual tickets: [https://event.onliveevent.nl/rustweek-2026/register?code=RUSTNL-MEETUP](https://event.onliveevent.nl/rustweek-2026/register?code=RUSTNL-MEETUP). More info: [https://2026.rustweek.org/](https://2026.rustweek.org/) If your employer pays your ticket, we ask you to buy an "Employer-paid" ticket (€413 ex VAT), to help cover the cost of the conference. **Come meet the Rust Project team members** We are proud to host the Rust All Hands for the 2nd time, which takes place later in the week. Folks from the Rust project teams will be at the conference, so it will be a great opportunity to meet them and attend talks in the "Project track", with each project team (language, compiler, library etc) presenting on a current topic. **Location** The conference is held at Kinepolis Jaarbeurs in Utrecht, right next to the central train station.

Are you an **expat** in **Utrecht** and do you want to **learn how to swim?** Look no further! Dive into **personalized swimming lessons** with **Your Personal Swim Coach**. Whether you’re a beginner looking to learn the basics or an advanced swimmer seeking to refine your technique, our expert coaches offer **tailored sessions** that fit your needs. **De Kwakel** is a great pool close to the city center, has free parking, and is easy to reach by bus. It's an **amazing learning environment!** **Don't wait any longer:** **[Sign up for a Try Out Lesson!](https://www.your-personal-swim-coach.nl/product/try-out-adult-swimming-lesson/)** Want to learn more first? Go to our **[website](https://www.your-personal-swim-coach.nl/)** or **[schedule a call!](https://calendly.com/ypsc/new-meeting)**

(english/german below) **Bitcoin Pizza Dag!** Op 22 mei 2010 betaalde programmeur Laszlo Hanyecz 10.000 BTC voor twee pizza's — de eerste gedocumenteerde aankoop met bitcoin. Hij plaatste een bericht op een forum waarin hij BTC aanbood voor pizza; een andere gebruiker ging akkoord, bestelde de pizza's en leverde ze af. Die transactie werd later bekend als "Bitcoin Pizza Day". Laszlo bewees dat Bitcoin als ruilmiddel gebruikt kan worden. **Sluit je bij ons aan voor pizza-avond bij De Pizzabakkers! (vanaf 18:00)** RSVP zo snel mogelijk; we moeten reserveren bij De Pizzabakkers en er is beperkte plek. Zorg dat je je geladen Lightning-wallet meeneemt! *** **English: Bitcoin Pizza Day!** On May 22, 2010, programmer Laszlo Hanyecz paid 10,000 BTC for two pizzas — the first documented purchase using bitcoin. He posted on a forum offering BTC for pizza; another user accepted, ordering pizzas and delivering them. That trade later became famous as "Bitcoin Pizza Day," Laszlo proved that Bitcoin can be used as a medium of exchange. **Join us for pizza diner at De Pizzabakkers! (from 18:00)** Please RSVP as quick as possible as we need to make a reservation at De Pizzabakkers and there is only limited space. Be sure to bring your loaded lighting wallet along with you! *** **Deutsch: Bitcoin Pizza Tag!** Am 22. Mai 2010 zahlte Programmierer Laszlo Hanyecz 10.000 BTC für zwei Pizzen — der erste dokumentierte Kauf mit Bitcoin. Er postete in einem Forum und bot BTC für Pizza an; ein anderer Nutzer akzeptierte, bestellte die Pizzen und lieferte sie aus. Dieser Tausch wurde später als "Bitcoin Pizza Day" bekannt. Laszlo bewies, dass Bitcoin als Tauschmittel verwendet werden kann. **Begleite uns zum Pizza-Abend bei De Pizzabakkers! (ab 18:00)** Bitte antworte so schnell wie möglich; wir müssen bei De Pizzabakkers reservieren und es gibt nur begrenzten Platz. Nimm unbedingt deine geladene Lightning-Wallet mit!

**RSVP here via EventBrite [here](https://www.eventbrite.nl/e/you-and-your-brand-a-casual-networking-hour-tickets-1984283125243).** Expand your visibility. Join a casual online time to share about you, your brand and business, and learn more about other business owners, locally and globally. Share upcoming events and workshops, too. After each business owner gets the spotlight to share, we then move into a topic-oriented discussion. This month, the topic is begin chosen by [Isabella Maria Noguera, MSc](https://www.linkedin.com/in/isabellamarianoguera/) over of Be Your Brand Consulting. Every session closes with gratitude and a creative activity, so have a pen and paper, tablet, or something available in case we write/create/draw. **RSVP here via EventBrite [here](https://www.eventbrite.nl/e/you-and-your-brand-a-casual-networking-hour-tickets-1984283125243).** *-* *\*\*\*The only requirements are a minimum age of 18 years old, be a business owner or preparing to launch,* *and **at least three attendees** register to make it a worthwhile hour for everyone.\*\*\**

Donderdag 21 mei 2026 is het weer tijd voor onze Techday: hét vaste moment waarop we kennis delen, elkaar inspireren en nieuwe ideeën direct in de praktijk brengen. Deze editie pakken we het aan als een conferentie in het klein. Drie sprekers, drie verhalen, één middag – drie verhalen voor de prijs van één. Wat kun je verwachten? **Dirk neemt een kijkje onder de motorkap van AI** AI voelt voor veel mensen als magie. In deze talk probeer ik de magie weg te nemen door een kijkje te nemen onder de motorkap. Een essentieel bouwblok van moderne AI is een neuraal netwerk. Als je begrijpt hoe een neuraal netwerk werkt, is het een stuk makkelijker om te begrijpen hoe en waarom een LLM werkt. De beste manier om iets te begrijpen is door het te bouwen, vanaf scratch. Dus dat gaan we in deze talk doen. Door dat te doen leren we over artificial neurons, activation functions, backpropagation en meer. **George vertelt hoe AI Cyberaanvallen verandert** George Schizas (extern), voormalig IT Manager, nu werkzaam als CISO, vertelt over zijn ervaringen in de Cloud Cyber Security en hoe hackers met behulp van AI nieuwe aanvalsmethoden kunnen gebruiken om kwetsbaarheden op te sporen en te exploiteren. Hij geeft voorbeelden van manieren om in Kubernetes omgevingen in te breken en noemt manieren om dit tegen te gaan. **Roland duikt in de wereld van de fraude fabriek** Als ontwikkelaar kom je dagelijks in contact met technologie en de laatste jaren natuurlijk ook vaak met AI. JIJ snapt heel goed wat de voordelen en de gevaren zijn, maar hoe leg je complexe onderwerpen als AI gegenereerde afbeeldingen, Voice Phishing en Hallucinaties uit aan je ouders, de buurvrouw, of je kinderen? Ik neem jullie mee in een realistische situatie waarin Anna en haar familie opgelicht wordt met behulp van verschillende technieken en hoe dit oplichters-landschap met behulp van AI verandert. **Wanneer:** Donderdag 21 mei 2026 **Wat:** Techday – conferentie-editie “AI kansen en valkuilen” **Voor wie:** Iedereen (!) die nieuwsgierig is en wil leren **Agenda** 14:45 - 15:00 - Inloop 15:00 - 16:00 - Neurale netwerken 16:15 - 17:15 - AI risico’s en kansen 17:15 - 18:00 - Eten 18:00 - 18:45 - Fraude fabriek We zien je graag op de Techday!

Come along, lovely queer hikers! 🌿✨ This time we’re serving an easy-going queer nature moment with a short loop through **Landgoed Heidestein** near Zeist. Think dreamy forest paths, shimmering fens, a peaceful forest pond, and heather fields - a lot of diversity for such a short walk :) We’re teaming up with **Cocktail (COC’s group for LGBTQIA+ refugees & asylum seekers)** for this event, so besides soaking up nature, we’re creating space for connection, sharing stories, and learning from each other’s journeys and experiences. Expect a vibe that’s part hike, part picknick, part wholesome community exchange. 🌈 Bring your snacks and blankets, as we’ll pause along the way for a relaxed picnic moment together. Because queer joy isn’t just about where we go, but who we walk with. 💖 **Practical info** 📏 **Distance:** 5 or 7 km (loop walk) 📍 **Start:** Bus stop Prinses Margrietlaan, Zeist (5km option) Driebergen-Zeist station (7km option) 🏁 **End:** Back at the starting point 🥾 **Level:** easy - chill pace 🤝 **Meeting point:** outside the train station **Driebergen-Zeist at 13:45** or bus stop **Prinses Margrietlaan (Zeist) at 14:20** ❗You’re welcome to join from another direction. If you come by car you can park at P+R Driebergen-Zeist. Please note: we published this hike with Cocktail simultaneously, which is also why we lowered the participant number from Hiking Queer NL's side. Pack your: 🍱 snacks 🚰 water 🧥 rain coat/umbrella ☀️ sun screen 🏳️‍🌈 anything else you might need ❌ If you signed up and cannot make it in the end, please cancel your RSVP attendance so we know how many people will show up and someone else can take your place instead. 💗 A voluntary donation helps us to keep the Meetup group up and running :) you can either pay via a Tikkie or in cash after we finish the hike. *Hiking Queers Netherlands & Cocktail (COC)*

\# This meetup is around a third\-party organizer\, Focus Filmtheater\. You can either purchase your ticket online or right before the session\. **Seats are numbered**. # **Title**: The President’s Cake **Language**: Arabic **Subtitles**: English **Length**: 106 min **Director**: Hasan Hadi **More info**: https://www.focusarnhem.nl/agenda/english-subs-the-presidents-cake/ **Ticket link**: https://www.focusarnhem.nl/tickets/144299/ **Synopsis:** In poverty-stricken 1990s Iraq, young Lamia is selected to prepare a cake for the President’s birthday. Because basic ingredients are hard to find, Lamia goes on a journey in search of eggs, flour and sugar. It becomes a tender, tragicomic odyssey, offering a child-eye’s view of life under authoritarianism. Hasan Hadi’s affecting debut feature follows 9-year-old Lamia. She is tasked with bringing a cake to school for the President’s mandatory birthday celebration. Against a backdrop of crippling poverty and food shortages, she journeys from her marshland home to a nearby city in search of ingredients. Coming along with her are her grandmother Bibi, her best friend Saeed and her beloved pet rooster Hindi. Shot on location in Iraq with nonprofessional actors, this tender, tragicomic odyssey offers a poignant child’s-eye view of life under authoritarian rule. The film was inspired by Hasan Hadi’s childhood memories of 1990s Iraq under Saddam Hussein, and was awarded the Caméra d’Or at Cannes for best first feature. **How it works**: I will be at Focus around 18:30, where we can meet before the movie starts. You can message me to find us. Screening starts at 19:00. After the movie, we can have a drink together. Hope to see you soon!

**Welcome to Drunken Philosophy** a casual, curious social discussion **Optional topic for this meetup: What's up with all the AI hate?** A recent survey found that 74% of Americans have a negative view of AI, and I want to know why. Come out and debate whether AI is good or bad. My hot take: a labor-saving tool that could potentially help cure cancer gets called dangerous because it might raise unemployment or cause a speculative investment bubble, that tells you a lot more about capitalism and the economic system we live under than it does about the tool itself. As a computer programmer, I think AI is a wonderful tool that has increased my productivity by at least an order of magnitude. I'd go so far as to say Claude Code is the best tool I have ever used. Debate me and name a better one. Is AI potentially dangerous? Yes, but so are a lot of tools. Chainsaws. Steam engines (early ones would occasionally explode and kill everyone in the room). Do you think cavemen sat around debating whether fire could be used as a weapon or for self-harm, and decided not to discover it? I have two friends who hate AI for opposite reasons: one thinks it's a fad and not useful, and the other thinks it's going to take over everything and cause human extinction. Come out tonight, have a friendly debate, and make some friends. No lectures. Friendly crowd. Drop in for one drink and stay if it's fun.

Click Here For More Videos: https://www.facebook.com/share/r/17bwkttXhV/ *********************************** Salsamante Dance Academy will be at Swerve Every Tuesday Night to share the Rhythm & Energy of Bachata & Salsa. These are Beginner Level lessons to get you comfortable and understand the two dances. Spread the Good News to all. Swerve Dance & Fitness Complex 640 Lakeview Plaza Blvd A, Worthington, OH 43085 Bachata 7pm-8pm Salsa 8pm-9pm $15 - One Lesson $20 - Both Lessons

**Important time note:** Please plan on arriving between 5:30 and 6:00 as the elevators lock after 6 and you'll need to message us and we'll need to come get you. The building address is 4450 Bridge Park The entrance is 6620 Mooney St, Suite 400 You will need to scan your ID at the door to get a visitor badge. **Abstract** TBD **YouTube Link** TBD

This is a time where players of all ages, and skill levels can gather and enjoy a nice Sunday full of Chess!

We may pick a specific topic and post in advance or may discuss current events and various ad hoc topics . We would love to spend time hanging out and getting to know one another. Atheist, agnostics, other non-theists, and atheist-friendly people are welcome to join us. Note: COUNT operates a Facebook page at www.facebook.com/groups/COUNT.discussions (http://www.facebook.com/groups/COUNT.discussions/) to promote discussions among members and visitors.

This is an in-person meeting. At this meeting you will get answers to depression and anxiety. Find out the source of them and how to get rid of them. Did you know that unwanted emotions like anxiety, depression, unhappiness, loneliness, hopelessness, anger, fear, or feelings of irritation don’t just fall on you for no reason. They are not random occurrences that simply happen to people's minds. They are definitely not due to a chemical imbalance in your brain from some nebulous chemical reaction "by chance". Your negative emotions are the symptoms of the painful experiences that you have which are not healed, and which are still affecting you. The effects of these painful experiences are exacerbated by the pressures or difficulties of the other problems in your life. Come to our Meetup, where we can introduce you to some of the knowledge, tools and techniques of the breakthroughs in the field of the mind that we can apply to this ever important area of life. Be sure to click on the red "Attend" button below to come to this local event. We look forward to seeing you there. This group is created by the Hubbard Dianetics Foundation of Central Ohio and Church of Scientology of Central Ohio.

Join us for an hour of writing! We’ve discovered that it’s strikingly helpful to write with other writers. See if it’s true for you at 7:00pm on Wednesday, February 11 at Streetlight Guild. Be it a book, blog, script, essay, dissertation, resume, melody, poem or just plain work stuff, you are invited to write it with us. No one will see what you've written or give you unsolicited advice. Instead of just thinking about writing, come and get some real writing done. **SCHEDULE:** 6:45ish - Quick introductions 7:00 - Timer starts: write for 1 hour 8:00 - The End **OPTIONAL SOCIALIZING** happens before and after the writing hour. Writing is very solitary. Connecting (and sometimes even commiserating) with other writers is a cool thing. **BEING LATE IS OKAY:** just show up and get settled! If you were on time, please be willing to make room for the friendly latecomer. Happy writing & I look forward to seeing you at Streetlight Guild! **WHAT SHOULD I BRING?** Whatever you need to be able to write! You're welcome to bring earplugs/headphones if noise will bother you! **OTHER IMPORTANT DETAILS:** * **RSVP:** Please RSVP by 6:00pm the evening of the meeting. This helps me know how many to expect, and if we'll need additional space! * **COVID:** While masks are not required, please be mindful of the other writers around you and their comfort levels. * **WIFI/OUTLETS:** Outlets are limited, so please ensure your devices are charged when you come! But Streetlight Guild does have free WiFi! Yay! * **PARKING:** There is free public parking at Streetlight Guild.