Logic Puzzles

Are you hopeful for the future? Do you think AI can change the future for the best? Do you believe we are living in the most interesting time of humankind? If you want to meet and socialise with like minded people, this event is for you. The principle is simple: we walk for about one hour: parks, forest, mountain. It’s an opportunity to do your daily steps as well as meet interesting people. We welcome students, professionals, expats, entrepreneurs, learners and experts. Only requirements: you are optimistic. The event is in English, but feel free to bring another language with you. See you there! Jef

Time for our biweekly peer Satsang gathering! This is an open, equal and low-key gathering for spiritual seekers from all walks of life to get together, talk, feel connected and grow. The gathering will last for about two hours. Bring questions, thoughts, or just your presence. We'll see what unfolds once we're there. If you're interested but can't make the currently indicated time, the event is full or you have any other questions, get in touch with me at thijshugenholtz@gmail.com and we'll see what we can do! Location: Buurtcentrum Hart van Noord, Trumanlaan 60 Utrecht but the entrance is opposite Geallieerdenlaan 24

If you are living in The Netherlands, by now, you may well have noticed the amount of open water. If you enjoy cycling in the city, you may wish to feel safer as you navigate the bridges and canals. And you may also want to get ready for visiting the beach, pools or the many lakes this summer. Learning how to swim takes approx 1 year and it all starts with the very first lesson. New comers enroll via our website and pay € 30,50, this is the first lesson and a goody bag. After the class you agree with the personal swim coach how to continue to obtain your final objectives. Enrolling is only possible via [www.your-personal-swim-coach.nl ](https://www.your-personal-swim-coach.nl/)hence a rvsp via meetup is not enough.

A great ride along the Vecht and Gein rivers. You will love this route. Please ride single file along the winding river as there can be cars around each corner. **Route:** https://connect.garmin.com/modern/course/441606271 GPX: https://drive.google.com/file/d/17-T_pT_GH3QKSFcH1WWgfArvxSdAkVzO/view?usp=sharing **Afterwards:** Drinks at Polder https://maps.app.goo.gl/tbt5DDG7YLU3uWvaA **Rules:** \- Download the route to your cycling computer so you can always find your way home \- Make sure to arrive on time \- Before you ride\, decide as a group how you want to ride: you can split up in a fast and a slow group or stay together\, but make sure to discuss what pace you are going to ride and whether you are going to wait if someone is slower than the group\, or not\.

Samen sporten, gewoon voor de fun, elke week een divers programma, met allerlei verschillende sporten. Je hoeft niet de beste te zijn, maar wel zin hebben om samen te spelen en te leren. Tijdens een training doen we verschillende spelletjes, basketbal, voetbal. volleybal, spikebal, honkbal. Kom je ook, de bal ligt bij jou!! Eerste keer meedoen is altijd gratis, daarna kan je beslissen of dit voor jou is, of niet!! Dus kom een keer proberen. Kan je niet op deze dag, we sporten ook op andere dagen nl Zondag om 9:30 of Maandag om 20:30 Stuur mij een berichtje als je op die dagen een keer wil proberen! The amount of people rsvp'd to this game doesn't match the real number of people at the event, as Meetup is only used for promotion purposes.

New Year, New Sport! 🏐 ​Whether you've never played volleyball before or it’s been many years since you last hit the court, you are very welcome to join our Beginner Group! ​We train every Monday at 9 PM at Gymnasium Bibian Mentel in Zeeburgereiland. ​Come learn the basics, get moving, and meet new people in a fun, relaxed environment. ​Get more info here: ​WhatsApp Group: https://chat.whatsapp.com/EnPEK1bHLiTGdpqz6Vtbm4 ​Instagram: @brazucavolley

**For this series you need to register via our website:** https://www.maitreya.nl/nl/programma/db-module-9-samsara-and-nirvana-4/2026-04-13. This is a module in the foundational Discovering Buddhism Series with Annelies van der Heijden (at our center and online). **Samsara & Nirvana** Investigate what “samsara” is and how we are stuck in it. Find out what “nirvana” is and how to achieve it. All living creatures know suffering—this is the Buddha’s first noble truth. And many of us also know how ordinary pain can grow into extraordinary suffering due to the power of our minds. In Buddhism, these negative states of mind that lead to suffering are called delusions. They are a primary cause for us being stuck in samsara—the cycle of endless rebirths that ordinarily propels one’s mind toward more suffering. The good news is that complete liberation from the suffering of an afflictive mind (nirvana) is entirely possible. Explore the meaning of samsara and nirvana with Annelies, and learn how to move out of a state of inevitable suffering to one of pure and irreversible peace. Find out how to develop your own determination to be completely free from suffering (renunciation) and its role on the spiritual path. Get empowered with practical tools for dealing with disturbing emotions up to the point of elimination, and reflect on the possibility of nirvana––and how that differs from enlightenment. [🎥 - ](https://www.youtube.com/watch?v=4Ws04VqqiZY)[Click here for an introduction to the topic](https://www.youtube.com/watch?v=c_dQCFWtPxY)

For our next hike we'll be following a beautiful 9.5km route starting at Soest-Zuid train station and ending at Amersfoort Central Station. On the way we'll pass by the Soesterduinen dunes and the Birkhoven forest. Will you join? Utrecht Hiking Community aims to organise one hike per month in the Utrecht Region. Anyone is welcome to join, no matter whether you're a beginner or an experienced hiker, a local or an expat, a professional or a student, as long as you bring a good mood. We are not about fast hiking, but about social hiking: being active, exploring places, meeting like-minded people and just generally having a fun walk. We'll be starting from Soest-Zuid train station at 10.30AM. This time we won't be following a circular route, which means we won't end at our starting point, but we'll end at Amersfoort Central Station instead. Those who want to return to Soest-Zuid station afterwards to get back to their car, can take bus 70 from Amersfoort, which is going every 15 minutes. Please try to arrive to Soest-Zuid on time. We'll start our hike at 10.30AM and won't let the whole group wait for you in case you're arriving later. Only in case the train scheduled to arrive at 10.24AM has some delay, we'll wait for that train to arrive. If you're arriving after we have departed, you can send a message on WhatsApp to +31621177691, so we can share our location with you and you can try to catch up with us. Soest-Zuid station has a toilet, but please don't count on it to work. When checking the route, it was closed. On the way there are no public toilets, so please use a restroom before you arrive. The route is going over both paved and unpaved roads and we'll even be walking through the sand of the Soesterduinen dunes for a bit (not for long, as it's harder to walk through the sand than on the paths). Please wear good shoes, bring something to drink for on the way and use SPF if it'll be a sunny day Dogs are allowed on the route, but need to be kept on a leash on parts of the route. After the walk, those who want can join for lunch/drinks in the center of Amersfoort. This is not directly next to Amersfoort Central Station, but at a distance of another 15-20 minutes of walking. Since we do make some costs while organising our hikes (MeetUp subscription, travel expenses), a small donation would be very much appreciated. You can do so by following this link: https://www.ing.nl/payreq/m/?trxid=s9tT34cUyD97YuSHhIYbTIqN4LfxLAn9 If you have any questions, please feel free to ask. See you on Saturday 9th of May at Soest-Zuid train station!

Not everyone who has ever worked in academia chooses to continue their career there. Sometimes academic work turns out not to be the right fit; sometimes it is simply different from what you expected. Some people entered with high ideals that did not come to fruition. Have you worked in an academic setting for at least one year (roughly full-time), and would you like to reflect on your experiences with others who have since left? Join the Journal of Trial and Error event on May 7, from 20:00, at Utrecht University Library City Center. During the evening, we will engage in an open dialogue. Together, we will explore what lessons the university can learn for improving science and higher education, and how these insights might help make academia more sustainable and appealing for the next generation. Register for the event here: https://trialanderror.org/lustrum-ex-academia-2026.

**Zondag 10 mei presenteert OPA een boekpresentatie voor Dingen doen denken, het nieuwe boek van auteur Jeroen van den Eijnde en ontwerper Jannie Guo.** Dingen doen denken bevat teksten die Van den Eijnde schreef tussen 1994 en 2025, van persoonlijke observaties tot bijdragen aan vak en publieksboeken over design en ontwerpend onderzoek. Kunstenaar en ontwerper Jannie Guo heeft het boek vormgegeven. Beiden verzorgen een presentatie met aandacht voor de teksten van Jeroen en het ontwerp van Jannie. Walter Jansen van Het Colofon gaat met hen in gesprek. Graag aanmelden via info@hetcolofon.nl met de vermelding van het aantal personen.

This is a public event. https://www.mamalouise.nl/stemmen/#meer Location: Amsterdam https://share.google/cwDD8kYtynE6gveog Please WhatsApp your meetup organisor Mari for your confirmation!

**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)

📍 Hilversum Station, 11:00 → Pinetum → back by ~15:00 🚶‍♂️ Short walk (~20–30 min each way) 🎯 Main location: Pinetum Blijdenstein (€4 entry) This time we’re keeping it shorter and focusing on one beautiful spot: the Pinetum — a small botanical garden dedicated to pine trees, full of interesting shapes, textures, and quiet corners to sketch. We’ll meet at Hilversum Station at 11:00, walk together to the garden (arriving around 10:30), and spend about 2 hours sketching. There are some benches, but not many — please bring a foldable chair if you’d like to sit while sketching (blankets won’t work here). Around 14:00, we’ll head back toward the station. If people feel like it, we can grab coffee and maybe lunch at Mout before wrapping up around 15:00. Bring: Sketching materials Water Foldable chair Comfortable clothes + an extra layer No pressure on skill level — quick sketches, detailed studies, or just experimenting are all welcome. Come for the trees, stay for the sketches 🌲✏️

When judging morality, should we prioritize **intentions/duty** or **outcomes/results**? It introduces two influential philosophers as representatives of these approaches. * **Immanuel Kant (deontology):** An action is moral when it is done from **duty** and follows rational, universal principles (the **categorical imperative**). Certain acts—like lying—are wrong regardless of the consequences; you can’t do a wrong thing for a right reason. * **John Stuart Mill (utilitarian consequentialism):** The morality of an action is determined by its **effects**, specifically how much **happiness/well-being** it produces. Mill argues that some pleasures are “higher” than others, and that good intentions don’t redeem harmful outcomes. ## Discussion Questions 1. **The lying dilemma:** A murderer comes to your door and asks if your friend is hiding inside. Kant would say you must not lie. 2. **Can good intentions rescue a bad outcome?** 3. **The organ harvest problem:** A surgeon has five patients dying of organ failure and one healthy patient in for a checkup. Killing the one to harvest organs would save five lives, and the math works out for the utilitarian. Why does this feel so deeply wrong? Is that feeling a point in Kant's favor, or just a bias we should overcome? 4. **Do rules need exceptions?** Kant insists moral rules must be universal, with no exceptions. But most of us can imagine extreme scenarios where any rule seems like it should bend. Does the need for exceptions fatally undermine deontology, or is the strength of the system precisely that it refuses to bend? 5. **Who gets to calculate the consequences?** Utilitarianism asks us to maximize good outcomes, but we're notoriously bad at predicting consequences. If we can't reliably know the results of our actions, is it practical to base our entire moral system on outcomes? Does this uncertainty push us back toward rules and principles? 6. **Everyday morality:** Think about a real moral decision you've made recently, even a small one. Did you reason more like a Kantian (what's the right thing to do in principle?) or more like a utilitarian (what will produce the best result?)? Do most people naturally lean one way? 7. **Justice vs. the greater good:** A town can prevent a deadly plague by sacrificing one innocent person. The greater good is clearly served. But is it just? Can an action be morally right and deeply unjust at the same time? 8. **The big synthesis question:** Are these two systems actually opposed, or do they often arrive at the same answers by different paths? Is it possible that we need both: rules to guide us in the moment and consequences to evaluate systems and policies over time?

Join us as we get together to see your choice of two VERY different movies – one sweet and wholesome – the other a terrifying folklore horror! Option 1 is the fun whodunnit-action-comedy-mystery led by Hugh Jackman, THE SHEEP DETECTIVES! Option 2 is the top-reviewed supernatural-horror-thriller starring Adam Scott, HOKUM! Here’s a description, trailer and plan for this event: THE SHEEP DETECTIVES: Every night a shepherd reads aloud a murder mystery, pretending his sheep can understand. When he is found dead, the sheep realize at once that it was a murder and think they know everything about how to go about solving it. The film is directed by Kyle Balda and take a look at this ensemble cast: Hugh Jackman, Nicholas Braun, Molly Gordon, Hong Chau and Emma Thompson and the voices of Julia Louis-Dreyfus, Bryan Cranston, Chris O'Dowd, Regina Hall, Patrick Stewart, Bella Ramsey, Brett Goldstein and Rhys Darby. TRAILER: https://www.youtube.com/watch?v=pyZI5oM6hWk HOKUM: In this film, a horror writer visits an Irish inn to scatter his parents' ashes, unaware the property is said to be haunted by a witch. It is written/directed by Damian McCarthy stars Adam Scott, Peter Coonan, David Wilmot, Florence Ordesh and Austin Amelio. Hokum premiered to rave reviews at this year’s SXSW Festival and is being release by Neon. It is earning a stellar 97% positive rating on Rotten Tomatoes, which calls it, “A classic haunted house story enriched with atmospheric folklore and perfectly-timed shocks!” TRAILER: https://www.youtube.com/watch?v=EVCIK_MPyhc PLAN: We’ll plan for a 7pm-ish showing of both films and will meet inside the theater lobby about 20 minutes before showtime. If the showtimes work out, we’ll try to get both groups together for a bite before the shows! Complete details and showtime will be confirmed/announced as the date gets closer. Look forward to seeing you there, Dan

[The Board Walks](http://www.theboardwalks.com/) are for curious people who love deep conversations. If that sounds like you, **bring a thoughtful topic** and join us for a 5-mile walk (10,000+ steps!). **HOW IT WORKS** **Step 1: Bring a topic** Before you arrive, think of **one** topic you want to explore. A question. A thought that's been on your mind. An obsession you want to geek out on. This is your ticket to the event. **Step 2: Circle up & share** We gather in a circle. Your friendly walk host gives a speech to set the tone. Everyone shares: your name, what you're grateful for, and your topic. That's it. 60 seconds. **Step 3: Walk, talk & float** We walk 5 miles. You naturally drift into conversation with 2-3 people at a time, pulled by topics that spark your curiosity. When you're ready to move on, just say: "I'm going to float!" **Step 4: Feel more alive** Two hours flies by. You're back where you started — but you feel different. More alive. More energized. More connected to yourself and others. That's why regulars join 20+ times. *For more details, read our [Orientation Guide.](https://www.theboardwalks.com/orientation)* **HOW TO BRING A GREAT TOPIC** A great topic = something you're genuinely curious about. Recent topics include: * "What are you passionate about right now?" * "What makes a good friend?" * "What's a belief you used to hold that you've completely changed?" * "How do you want to be remembered?" * "What would you do if money wasn't a factor?" Think of your topic like the dish you're bringing to our conversational potluck. If everyone brings an A+ dish (i.e. energizing, uplifting, expansive), we'll all walk away feeling lighter and brighter. **WHAT TO EXPECT** This isn't a fitness event with casual chitchat. It's a walking think tank where we explore life's big questions together, beyond small talk. *If you're looking for light banter or a standard networking event, this probably isn't the right fit.* But if you crave depth, genuine connection, and conversations that make you feel alive? You'll love it here. **FAQ** * Wear casual athletic attire and sneakers. It's a long walk! * We have multiple first-timers at each event. We work hard to create a welcoming, inclusive, clique-free space. * We welcome people of **all** ages, backgrounds, and industries who align with the [intention](https://www.theboardwalks.com/ground-rules) of this space. * Rain or shine, we've been out here nearly every week since July 2022. If the event is cancelled, we'll let you know. * Dogs, babies in strollers, parents, and friends are welcome — please text/email them the event link so they can RSVP and prepare a topic! **LOGISTICS** * If you'll arrive over 10 minutes late, we suggest skipping the event. It's hard to find us once we start walking, and your host can't answer messages during the event. * This walk is designed for everyone to *move together at the same steady pace* (about 20 min/mile). This format works best when the whole group moves in unison. If you have mobility limitations, we kindly encourage you to find an event better suited to your needs. * Read our [Orientation Guide](https://www.theboardwalks.com/orientation) for full details. * If you enjoy the event, send **[this](http://www.theboardwalks.com/)** to a friend or sign up for our **[newsletter](https://theboardwalks.beehiiv.com/)**. We're in multiple cities with more on the way. 🤠👋 **IF YOU WANT TO GO DEEPER...** [The Board](https://stan.store/ellebeecher/p/the-board) is the next step: a high-trust collective for renaissance people devoted to creating, connecting, and building lives that light us up. * This is a global HQ for people who crave big talk, deep connection, and dream collaborations with people across industries. If the walks feel like a spark... The Board is the fire. Apply [here](https://stan.store/ellebeecher/p/the-board).

Join us for 2 loops of the 1.1 mile trail surrounding Civic Park In Reynoldsburg this Thursday (5/7) at 6:30 pm. This is a fully paved trail so no worries about mud after a rainy week. Just come and get some exercise while connecting with others.

Sleep in on Sundays. When you've had your fill of pajama-time, roll out and have some tasty brunch with your fellow Humanists!

💌 **Online Speed Dating for Detroit Singles — Real Connections, Long-Term Thinking** This is for singles who are done with apps that go nowhere. Done with casual. Ready for a genuine conversation with someone who might actually matter. Live on Zoom. Personality matched. Built for people who want something that lasts. **Choose your age group to register:** - Ages 18-32: [Register Here](https://tempodating.com/product?productId=476.0&productType=onlineSpeedDating&city=Detroit&groupurlname=foster-meaningful-relationships-through-outdoor-exploration&ar=18-32&face_v=2.0) - Ages 30-46: [Register Here](https://tempodating.com/product?productId=476.0&productType=onlineSpeedDating&city=Detroit&groupurlname=foster-meaningful-relationships-through-outdoor-exploration&ar=30-46&face_v=2.0) - Ages 40-58: [Register Here](https://tempodating.com/product?productId=476.0&productType=onlineSpeedDating&city=Detroit&groupurlname=foster-meaningful-relationships-through-outdoor-exploration&ar=40-58&face_v=2.0) - Ages 55+: [Register Here](https://tempodating.com/product?productId=476.0&productType=onlineSpeedDating&city=Detroit&groupurlname=foster-meaningful-relationships-through-outdoor-exploration&ar=55+&face_v=2.0) 🌿 RSVP here alone does not hold your place. Complete your registration through the link above and finish the short personality quiz. --- **How it works:** 1. Register via your age group link and complete the personality quiz. 2. Join Zoom at the event time — works on any device, no downloads needed. 3. Meet Detroit singles in short one-on-one rounds matched by age and personality. 4. Mutual matches are shared after — take it forward at your own pace. 🤍 Spots are kept small to keep things personal. If you are serious about finding the right person, this is where it starts.

💌 **Online Speed Dating for Cleveland Singles — Real Connections, Long-Term Thinking** This is for singles who are done with apps that go nowhere. Done with casual. Ready for a genuine conversation with someone who might actually matter. Live on Zoom. Personality matched. Built for people who want something that lasts. **Choose your age group to register:** - Ages 18-32: [Register Here](https://tempodating.com/product?productId=476.0&productType=onlineSpeedDating&city=Cleveland&groupurlname=find-your-future-partner-through-nature&ar=18-32&face_v=1.0) - Ages 30-46: [Register Here](https://tempodating.com/product?productId=476.0&productType=onlineSpeedDating&city=Cleveland&groupurlname=find-your-future-partner-through-nature&ar=30-46&face_v=1.0) - Ages 40-58: [Register Here](https://tempodating.com/product?productId=476.0&productType=onlineSpeedDating&city=Cleveland&groupurlname=find-your-future-partner-through-nature&ar=40-58&face_v=1.0) - Ages 55+: [Register Here](https://tempodating.com/product?productId=476.0&productType=onlineSpeedDating&city=Cleveland&groupurlname=find-your-future-partner-through-nature&ar=55+&face_v=1.0) 🌿 RSVP here alone does not hold your place. Complete your registration through the link above and finish the short personality quiz. --- **How it works:** 1. Register via your age group link and complete the personality quiz. 2. Join Zoom at the event time — works on any device, no downloads needed. 3. Meet Cleveland singles in short one-on-one rounds matched by age and personality. 4. Mutual matches are shared after — take it forward at your own pace. 🤍 Spots are kept small to keep things personal. If you are serious about finding the right person, this is where it starts.