Crowdsourcing

This is a ticketed event. Please register at [this link](https://luma.com/lpikw708). ​Ryan Faulkner explores various papers that address cooperation and safety in multi-agent LLM simulations. Some of the core topics will include: * ​Moral behaviour of agents in high-stakes, zero-sum, and morally charged social dilemmas * ​Governance and sanctioning dynamics and the ways that LLM agents often fail to cooperate and free-ride in common-pool resource game * ​Mechanism design interventions like mediation, contracts, and elected leadership are explored to steer agents toward safer outcomes. ​This research also reveals that LLMs adapt their behavior based on awareness of their conversational partner's identity. ​​​**Event Schedule** 6:00 to 6:30 - Food and introductions 6:30 to 7:30 - Presentation and Q&A 7:30 to 9:00 - Open Discussions ​​​​​​If you can't make it in person, feel free to join the live stream starting at 6:30 pm, via [this link](https://www.youtube.com/@Trajectory-Labs/live).

We’re still working to get more people into these Meetups, but our goal is to give PlayYourCourt members a few social tennis outings each week in addition to your practice sessions and Challenge League matches. These Meetups are co-ed, super laid back, and all skill levels are welcome. Post your skill level and a suggested court in the comments section so we can round up as many players as we can for some tennis fun! Also, if you’re looking to meet new practice partners or play some matches and you aren’t already in the PlayYourCourt Community, you can go here to see what we’re all about and sign up: https://www.playyourcourt.com/tennis-community/toronto-ON/meetup/ If you love tennis, we’d love to have you! Be sure and watch the quick video that explains how everything works. Happy hitting! - Scott

This is a ticketed event. Please register at [this link](https://luma.com/e69uao09). ​In his talk, Samuel Simko from ETH Zurich will present his recent work on adversarial defenses for LLMs, developed with the Jinesis Lab (University of Toronto). The talk will cover a series of approaches, ranging from triplet-based contrastive learning defenses to honeypot-style defenses designed to avoid worst-case behavior. He will also discuss patterns observed in contest-winning manual jailbreaking prompts, ideas for tamper-resistant safeguards, and the current limits of attacks, defenses, and evaluation methodologies. ​**Event Schedule** 6:00 to 6:30 - Food and introductions 6:30 to 7:30 - Presentation and Q&A 7:30 to 9:00 - Open Discussions ​​​If you can't attend in person, join our live stream starting at 6:30 pm via [this link](https://www.youtube.com/@Trajectory-Labs/live).

(Inside Malang Bar & Lounge) 🎟 $12 Admission — includes shared pool table access 🧑‍🤝‍🧑 Open to all! Limited to 35 attendees – secure your spot now! 🗓️ Every Thursday, 7:00 PM 📍 918 Dundas St E Unit C2/C3, Mississauga, ON L4Y 4H9 🤝 Curated networking activities for easy connection Forge meaningful bonds and expand your network at our vibrant community gathering! This isn't just another event; it's an opportunity to connect with like-minded individuals in a relaxed and inspiring atmosphere. Imagine an evening filled with engaging conversations, shared laughter, and the beginning of powerful new collaborations. You'll discover fresh perspectives, unlock potential opportunities, and strengthen your professional and personal circle within the Synergy Hub community. Don't miss out on crafting unforgettable moments and building your invaluable support system. For added fun and easy ice-breaking, attendees will have access to shared pool tables, creating a casual and interactive way to connect throughout the evening. • Expand your professional and personal network • Discover potential collaborations and opportunities • Gain fresh insights and diverse perspectives • Strengthen your sense of community and belonging Come for the connections. Stay for the community. Leave with lasting relationships.

Observability is supposed to help us understand our systems but for many teams it has quietly become one of the most expensive and least flexible parts of the stack. Plenty of organizations take polished SaaS platforms like Datadog to get real value quickly early on, only to hit the same wall later: runaway costs, pricing tied to architectural decisions, and vendor lock-in so strong it makes Rogers and Bell both blush. In this talk, I’ll walk through a real-world case study of a JVM-based production system that migrated away from a Datadog-centric observability setup to an open-source, OpenTelemetry-based platform. We’ll dig into the why behind the move, the architectural decisions that mattered, the mistakes along the way, and how the team ended up with pragmatic visibility into latency, errors, and resource usage at a fraction of the cost. The second half of the talk is practical and forward-looking. I’ll show how OpenTelemetry unlocks real choice by acting as a neutral data plane for your telemetry. From there, we’ll look at modern, off-the-shelf observability backends you can plug in within minutes without rewriting applications or installing new agents. Want to dual-write, swap vendors, or route data somewhere new? This is how you do it without a big-bang rewrite or another long-term commitment with a new vendor. This session is for engineers and CEOs who are feeling the observability cost squeeze, want leverage back from vendors, and are looking for realistic ways to modernize monitoring without lighting their entire stack on fire each time they decide to change their tools of choice. **About the venue** Free Times Cafe has bistro-style seating and a full food and drink menu. Please consider helping to support the venue by planning to have supper during the talk. **Speaker Bio** Alexei Zenin is a Platform Engineering Consultant based out of Toronto, Canada. Over the course of his career he has worked across the Healthcare, Marketing, Video Games, and Banking industries. He loves to tackle hard problems in the distributed systems space with a focus on scaling platforms both from a technical and process perspective. He is a strong advocate for highly maintainable and well tested code while at the same time pragmatically delivering value to the end user. He has contributed to the broader tech community, namely to Confluent’s blogs on Apache Kafka, spoken at Current 2022 in Austin, Texas, and spoken at XP Game Summit 2025 in Toronto, Canada. During his 5 years at Uken Games he contributed to several games like Who Wants to Be a Millionaire and Jeopardy. One title of note he saw from inception to completion was a game for Tim Hortons built right into the official app, Tim’s Word Challenge. Millions of Canadians have played it along with their morning coffee. He also got to work with Netflix on several unannounced games during his time at the studio. Currently, Alexei is working with various clients, both large and small to modernize and streamline their platforms with the most appropriate tools and practices. Outside of his professional life, he gives back to his community by volunteering at UofT. He also enjoys paddleboarding and attending live rock concerts to reset after long coding sessions.

Hello everyone, **\*Please kindly read carefully-thank you\*** Join us for a fantastic and hilarious evening of mix, mingling, getting to know each other; and of course a super funny comedy show at **Absolute Comedy!** \*Joined by my other social groups too so we can anticipate a fabulous turn out and night **Event Fee:** I will be in the front lobby (look for me-Steve & group) Early Bird Price: **20 dollars in advance (e transfer any day prior to the day of the event)** Day of Event Price **25 dollars when you arrive (HST is included)** Cash or through e transfer to: steveflemming11@gmail.com More event details below: Sincerely, Steve Flemming (Organizer) **Event Details:** **Thursday Night Comedy Show! (at Absolute Comedy) (Yonge and Eglinton)** \*Please arrive between 7:30 & 7:50 for a little pre-show mingle which will be a great way to get to know everyone before the show starts \*You will see us in the front bar area of the venue when you first come in \*Plenty of parking on Yonge street and in residential area \*Walking distance (3-4 minutes) from the Yonge & Eglinton subway station \*You will be expected to purchase minimum beverage and/or appetizer once inside the comedy show to support the staff and comedians \*Dinner menu is also provided as well, so bring your appetite if you like :) **Going to be a great night gang with lots of laughs!**

March 26th for the OpenClaw Meetup. Fraternal Order of Eagles - 17 Elm St, Toronto, ON M5G 1H1 [https://maps.app.goo.gl/tKyQGWh6pqSu5KTi8?g_st=ic](https://maps.app.goo.gl/tKyQGWh6pqSu5KTi8?g_st=ic) from 5-8p More information to come.. speakers, guests, talks..etc

**SUBSCRIBE TO [THE MAILING LIST](https://torontorationality.beehiiv.com/). EVENTS ARE NO LONGER POSTED HERE.** ​Arguing about important things doesn’t usually lead to people changing their mind. Double Crux is a technique for making discussions more productive and understanding the actual reasoning of those who disagree with us. Sometimes it even helps to better understand the foundations of your own beliefs. Together, we'll learn about [Double Crux](https://www.lesswrong.com/posts/ya59PtGeYnCG25eWn/double-crux-in-a-box), and then break into pairs with someone we disagree with to practice finding out why our views are different and what might change our minds. ## Location Enter the Mars Atrium via University Avenue entrance. We'll meet at the food court in the basement. I'll be wearing a bright neon yellow jacket. ## Detailed Directions to the Food Court Enter from University Avenue and walk east until you see escalators. Take the escalators down. The food court is to the east of the escalators. If you are lost/confused, ask a security guard to direct you to the food court. [This event is cross-posted from LessWrong.](https://www.lesswrong.com/events/wuMwSJJEKZHfccoRs/toronto-acx-meetups-everywhere-spring-2025)

Join us for a relaxed and creative watercolour meetup at a local café. Whether you’re a complete beginner or an experienced painter, all skill levels are welcome. Each session will begin with brief introductions, followed by a short overview of watercolour techniques and optional theme ideas to spark inspiration. From there, you’re free to settle in and paint—either alongside the group or in your own corner of the café, depending on seating. We’ll wrap up the meetup by coming back together for a casual show-and-tell, where anyone who’d like can share their work. The meetup is free if you bring your own supplies. If you need materials, a $5 fee will cover basic watercolour supplies. Come unwind, experiment, and connect with others through art.

Let’s do some coding together at a cafe! No more working alone in the weekend. Here, we write code together. And I mean together together. Not occupying-the-same-space-but-separate together. Here’s how it works: Jennifer brings her mobile app project, tells everyone that it is like Pinterest for recipes and she’d like to work on the nav bar. Paul and Chloe think Jennifer's project is fascinating, and they join the group. They gather around Jennifer’s laptop and work on the nav bar for 2 hours. Jennifer is the one typing out the code while Paul and Chloe research, brainstorm, and offer suggestions. If you’re feeling stuck on your own project or need a motivation boost, bring it to mob programming! Want to learn by watching how others code and solve problems? Join someone else’s project at this event! Oh and we love your half-done projects that you are a bit embarrassed to share. Absolutely bring those to the event! **Discord**: We use Discord to share screen & code snippets during the event. Also feel free to share your projects here before the event! https://discord.gg/yvAGbh4PpD **Event policy**: * We have 0 tolerance for harassment. * We don’t allow the projects that are not meant to be shared in public such as school assignments, interview tasks, or trade secrets. * The goal is to write code. We discourage you from pitching business ideas here, doing code reviews, or spending the whole event on planning what to do. * Please buy a drink, and tip the barista well.

Please make your reservation on dayofus.com. This is a paid event. DayOfUs brings strangers together for unforgettable dinners. Every week, we curate group dining experiences at great local restaurants — you + five new faces. No awkward planning, no group chats that go nowhere — just good food, good vibes, and conversations that matter. ### **Here’s how it works:** 1. **Take our quick quiz** in the DayOfUs app to share your preferences. 2. **We match you** with a group of like-minded people. 3. **We book the restaurant** — you simply show up and enjoy. 4. **You leave with new friends** (and maybe a new favorite restaurant). ✨ **Not a dating app** – we’re all about human connection and building friendships. ### **Why Join Us?** * **Effortless** – We handle all the planning. * **Fresh every week** – New people, new restaurants. * **Personality-based matching** – Not just random pairings. * **Local & traveler friendly** – Whether you’re new in town or just looking to meet more people. **📅 This listing is for awareness only — bookings are made through our app or website.** ✅ **Join today and get 10% off your first dinner** with code: **MEETUP10** **Download the Day of Us app**: [App Store Link](https://apps.apple.com/us/app/day-of-us-meet-new-friends/id6748222136 "https://apps.apple.com/us/app/day-of-us-meet-new-friends/id6748222136")💻 **Or sign up on our website**: [dayofus.com](https://www.dayofus.com/?utm_source=eventbrite&utm_medium=post&utm_campaign=toronto&utm_content=diningtable "https://www.dayofus.com?utm_source=eventbrite&utm_medium=post&utm_campaign=toronto&utm_content=diningtable") Your registration does not include your individual food and drink purchases. You will pay for your own order. ## **FAQ** **Do I pay here on Meetup?** No — we don’t take bookings here. Please sign up through our app or website to join a dinner. **Is this a dating event?** Nope! Our focus is on genuine friendships and expanding your social circle. **Do I need to come every week?** Not at all. You join whenever you’re free and feel like meeting new people. **Refund Policy** Refunds are available when you cancel at least 48 hours before your scheduled dinner (handled through the app).

Has it been just you and your phone lately? It’s easy to feel connected yet still feel alone. Digital interactions can’t replace the warmth of eye contact, real laughter, and meaningful conversations. True connection happens when we step away from our screens and show up as ourselves — present, open, and engaged. At Fast Friending, we create spaces where real relationships begin — just genuine conversations and shared moments. Because nothing compares to meeting face-to-face, discovering common ground, and walking away with a connection that truly feels real. **Book tickets now & save money -** [https://toro28thmarch.eventbrite.co.uk](https://toro28thmarch.eventbrite.co.uk) \*You can use any debit or credit card to purchase your ticket at PayPal checkout. It will ask you for your email address but that is only to send you a receipt. You do not need a PayPal account. EVENT COST: Early Bird - CAD$ 10 per person Regular Ticket - CAD$ 15 per person Cash at meetup - If you have not purchased your ticket in advance then you can pay CAD$ 20 cash when you meet Faye at the venue. **Our venue for the evening** \- High Park Brewery is spacious\, has comfortable seating and not very noisy\. We have a reserved area where our members can meet each other in a supportive environment\. **Here’s how your evening will flow:** **7:00 PM – Welcome** Arrive at 7:00 PM and be welcomed by your host, Faye, who will guide the evening and help with introductions. Feeling shy? Come a little early and she’ll ease you into small-group conversations. You’re also welcome to bring a lady friend along for free. **7:30 – 8:30 PM \| Fast Friending** Chat with a new attendee every 3 minutes, ensuring you meet a variety of like-minded ladies and gentlemen. **After 8:30 PM \| Open Mingling** Reconnect with those you enjoyed speaking to and continue meaningful conversations at your own pace \- We are not a close knit tight group\. Our evenings are warm and comfortable for members attending for the first time and those coming alone\. You will not feel alone\! \- We have many groups in this city\. Members of our other groups who RSVP are included as guests of the organisers in order to give you an indication of expected people\. \- This evening is for ladies and gents in the 25 to 45 age group\. While some will be at the younger end of this range there will also be others at the other end of the range and lots in\-between\! You will naturally gel with others of your own age range and so you will always find many attendees who fit your range\. \- We are not a 'dating' group\. We are focused on helping ladies and gents meet other like minded ladies and gents\. You will generally find a good gender balance \(maybe not perfect\) at all our events\. **Why do we have tickets?** 1. Cover our costs - Our host is compensated for their time and work. We also pay meetup and have dedicated staff to manage our events, hosts, venues and communication. 2. Group Safety - By securing your ticket we have a record and you contribute to a well organized evening where everyone is more committed and better behaved. 3. Management - Tickets help us better manage attendee group size, book suitable space and activity. \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- ABOUT [fastfriends.co.uk ](https://fastfriends.co.uk/)- We have connected members successfully for the past 10 years in over 30 cities (operating as Expatsclub, MeetConnectDevelop and fastfriends.co.uk). \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- You can contact our founder Dan on +447715705005 with any questions or ideas. \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- **Here are some videos which will give you some guidance and comfort to make your attendance more productive.** Secrets for socialising at our meetups - [https://bit.ly/44ZdVwx](https://bit.ly/44ZdVwx) Making new friends -[ https://bit.ly/455TsWY](https://bit.ly/455TsWY) How to make people like you instantly - [https://bit.ly/3Vj5PeT](https://bit.ly/3Vj5PeT) Members review - [https://bit.ly/3yHfu6d](https://bit.ly/3yHfu6d)

We are back after a well needed break. This time we are staying in the city for another cafe hopping event. Lets meet outside Queen’s park subway and venture into different directions of downtown and maybe Yorkville. Detailed map itinerary to follow closer to the date. I will let cafes know that we are coming but some cafes can be small or have no washrooms so please plan accordingly and drink responsibly. Haha. Its $2 event to cover the Meetup fee. You can pay using this link: https://buy.stripe.com/bJe00j7KXf3if8caTsdZ605 Thanks and see you all.

Builders, creators, architects, admins, consultants - come one, come all. This one's for you. We're bringing a little friendly competition to the Columbus ServiceNow community while highlighting the cool things people have built on the platform. Five presenters will take the stage to showcase something they've built, solved, designed, or imagined on the ServiceNow platform - and a panel of judges (plus YOU, our amazing audience) will score them live. So basically, America's Got Talent but make it ServiceNow's Got Talent. Bring a notepad if you'd like 'cause you'll definitely be learning something new. Each presenter gets 10 minutes max to wow the crowd with: • A demo • A real-world business solution • A bold idea • A UX transformation • Or a creative use of the platform Judging Criteria: 🏆 Business Value 🚀 Innovation ✨ User Experience This event is about celebrating ideas, sharing knowledge, and showing how ServiceNow can drive both business impact and meaningful user value. Come learn. Come support. Come get inspired. Refreshments and bites will be provided. And maybe next time… you’ll be on stage.

Rev. Steven Clevenger is an ordained spiritualist minister with over 40 years experience as a Spiritual Healer, Clairvoyant and Spiritual Teacher, educated and trained at the White Lily Chapel. Rev. Siobhan Wolf Shaffer is an ordained spiritualist minister and certified medium and healer with over 20 years experience. She began her development in 1988 in Pennsylvania and continued when she moved to Ohio in 1998 where she studied at Rays of Lights Church with Rev. Steven Clevenger. Our full worship services consist of an inspirational lecture, healing meditation, and messages from the spirit world that serve to demonstrate evidence of eternal life. Please visit our Official Church Website (http://raysoflightchurch.com) for more information.

Columbus Code & Coffee is excited to partner with GiveBackHack to put on the Healthtech Impact Sprint from 3/28-3/29 at Rev1 at The Peninsula! RSVP here using promo code CODEANDCOFFEE: https://luma.com/tk2jdrxk This is a health-specific version of GBH’s traditional weekend event. Participants pitch, research, and prototype health-focused projects for a chance to earn to $5K in funding from The Columbus Foundation and IGS Energy. On Saturday, folks will pitch their idea, form teams, and build. On Sunday, they’ll finalize their pitches before showcasing their work to the community and judges. # ​Schedule ​**Sat, Mar 28** * ​​9a: Doors open & breakfast * ​9:30a: Kickoff and intros * ​​10a: Ideation session * ​​11a: Pitches & team formation * ​​12p: Working lunch * ​​2p: Mentor visits * ​​5p: Free work (optional) * ​​9p: Doors close ​​**Sun, Mar 29** * ​9a: Doors open * ​10a: Mentor visits * ​​12p: Showcase * ​​1p: Final pitches & awards * ​​2p: Wrap *** # ​ FAQs ​**Do all ideas have a chance at getting funded?** ​​Not all ideas will move forward after initial pitches on Saturday. Once pitches are complete, we’ll vote for top ideas and form teams around the 4 – 7 ideas with the most votes. You must recruit **at least four total team members** (including the founder) to move forward and have a chance at getting funded on Sunday. If your idea doesn’t move forward, you can join another team! ​​**Do I have to submit my idea online prior to the event?** ​​Unlike previous years, we don’t have the option to submit your idea online prior to the event. Instead, everyone will be going through a brainstorming exercise on Saturday that’ll help you prepare for your initial pitch. ​​**Will we be working for 24 hours straight?** ​​Nope. The event is split over two days. You’ll be building on Saturday and pitching on Sunday. ​​**Do I have to pitch an idea?** ​​Nope. You can also simply join a team. ​​**What types of entrepreneurs does GBH support?** ​​While GBH most often works with technology startups, we support *any* organization (for- or non-profit) that makes an impact on health in the US or across the world.

Main Library, Meeting Room 2B Join us for a welcoming evening of reflection, gentle music, and meaningful conversation. We’ll begin with a short grounding moment, followed by a brief reading from spiritual or philosophical traditions, and an open reflection circle where participants can share (or simply listen). Libera Animae is an interfaith community focused on inner growth, creativity, and authentic connection. All backgrounds are welcome.

**First meetup of the Columbus AI Engineering group.** We’ll kick things off with a practical, beginner-friendly discussion on: **How LLMs like ChatGPT actually work — and how to build real applications with them.** We’ll cover: * what’s actually happening under the hood (at a high level) * why LLMs behave the way they do (hallucinations, prompt sensitivity, etc.) * how people are building real systems with them today * where things break in practice This will be a **short, informal talk (\~15–20 min)** followed by open discussion and Q&A. Whether you’re an engineer, builder, or just curious about how modern AI systems work, you’re welcome to join. No slides, no fluff — just real conversation about real systems. We’ll hang out afterward and get to know each other.

It’s time to take control of your mental health. How do you get rid of stress, anxiety and uncertainty? These emotions are buried deep in your reactive mind. Find out what the reactive mind is, and in the process find yourself. Here is the secret of being positive and free: Thinking positively is not enough. You also have to get rid of the negative thinking. Your mind is like a garden. You can plant many beautiful flowers in it, but if you don't get rid of the weeds when you plant your flowers, the weeds will soon take over the whole garden. A positive thought is like a flower in your mental garden, and a negative thought is like a weed. You cannot expect to have a positive mindset if you continue to have negative thoughts dwelling and growing there. So, how do you get rid of the negative thoughts? That's what this Meetup is all about. Attend this local meeting and find out! The Meetup event will be led by a consultant who had helped many people live happier in 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 Dianetics & Scientology life improvement center.

Central Ohio Radio Enthusiasts—CORE—is an informal community for anyone enthusiastic or curious about radio—whether you're new to radio and want to learn or you've been tinkering for years and want to share. Ham radio operators, GMRS users, Meshtastic fans, software-defined radio nerds, makers, and technical and non-technical folks are all welcome. No experience required or expected. This month we have **WiFi HaLow: Introduction and Practical Use** with **Alex Barbur**. Details are are [core.radio](https://core.radio).