Machine Learning

**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 your community of fellow Intuitives and MBTI nerds for a casual evening of engaging conversation. We get together every second Sunday – with a mix of regulars and new friends. There is no fee to attend, though we ask that you support the venue by ordering something to eat or drink. **Feel free to contact event host B. via Facebook/Meetup messenger, or text/call 416-712-8635 for directions**. About the venue: The Pint Public House Nearest Subway: Union Station Map / Directions: https://maps.app.goo.gl/G5GfXDSQXeifJ5ot5 We make an effort to find pubs that are quiet and introvert friendly, with a section to ourselves. We make no effort to muffle our extroverts, but should they get out of hand, our resident INTJ will use their death stare, to pull them back in line.

【College Park food court is closed again, so we change the location to the food court in Aura Concourse（384 Yonge St., Toronto, ON）, near the College Station.】 I am helping organize a mandarin-english language exchange downtown. If you want to improve your Mandarin/English, feel free to come by downtown and meet others to practise your language. There will be native Mandarin and English speakers to help you! Or you can share your language skills with others! Every Sunday 3:00pm-5:00pm Aura Concourse（384 Yonge St., Toronto, ON) [ Please find a table with "meetup" label (like the Featured photo).] [ Usually in front of the pharmacy ] —————————————— 大家好： 【College Park的food court又给封了，所以我们把活动地点换到了 Aura Concourse的food court（384 Yonge St., Toronto, ON），靠近College Station。】 我正在组织一场中英文交流活动。如果你想提高你的普通话或者英语，那就快来参加吧！你可以在这里认识很多母语为普通话或者英语的新朋友！他们都非常乐于帮你提高你的中英文表达能力！也欢迎你同我们一起分享你的语言技巧! 谢谢! 每周日 3:00pm-5:00pm Aura Concourse food court（384 Yonge St., Toronto, ON） 【请找到一张桌子，桌上有张纸，写着“Meetup”。】 【位置通常在药房前面】 ———————————————— 大家好： 【College Park的food court又給封了，所以我們把活動地點換到了Aura Concourse的food court（384 Yonge St., Toronto, ON），靠近College 】 我正在組織一場中英文交流活動。如果你想提高你的國語或者英語，那就快來參加吧！你可以在這裡認識很多母語為國語或者英語的新朋友！他們都非常樂於幫你提高你的中英文表達能力！也歡迎你同我們一起分享你的語言技巧！ 謝謝! 每週日 3:00pm-5:00pm Aura Concourse food court（384 Yonge St., Toronto, ON） 【請找到一張桌子，桌上有張紙，寫著“Meetup”】 【位置通常會在藥房前面】

This group is for badminton enthusiasts who are passionate about exploring the connections between metabolism, energy, and exercise. We are welcome beginner plus, intermediate and advance level players looking to improve your skill or a seasoned player seeking to optimize your performance on the court, this group is for you! Join us for friendly games. This badminton session is a weekly event and it is followed with dinner together but it is optional. Since we have 3 courts and allowed the maximum of 24 players so that everyone signs up for this event will be placed on waiting list FIRST then will be moved to the joining list on WEDNESDAY MORNING. Court fee: It will be informed at the comment section by 4pm. Cost per person is either $162 (for 3 courts) divided by the number of players attended OR $108 (for 2 courts) divided by the number of players attended. My email address will be provided at that time for etransfer.

🌆🚶‍♂️ THE PATH WALK & LUNCH ADVENTURE 🚶‍♂️🌆 Toronto’s Underground City… Let’s Go Get Lost (On Purpose) Did you know Toronto has an entire second city beneath the city? Welcome to **PATH (Toronto)** — a 30-kilometre maze of tunnels, walkways, food courts, shops, office towers, and hidden corners connecting more than 70 buildings in the downtown core. It’s climate-controlled. It’s slightly confusing. It’s uniquely Toronto. And we’re going to explore it together — above ground first, then descending into the urban underworld like the confident city adventurers we are. [NOW Magazine piece](https://web.archive.org/web/20220429041937/https://nowtoronto.com/lifestyle/health/toronto-walk-exploring-the-path-in-winter) about the PATH awhile back. 👉 **Don’t forget to join our WhatsApp group** – [CLICK HERE!](https://chat.whatsapp.com/H59mSCbsAi018gYANrKAnc?mode=ac_t) *** 🗺️ The Plan We’ll begin at Wellesley Station and start by walking west. Then we’ll head south and eventually make our grand entrance into the PATH system. From there, we’ll continue indoors, weaving our way south through the network — past office towers, hidden corridors, and pockets of unexpected energy — all the way down to **Union Station**. At Union, we’ll head into the food court to grab lunch, sit down, and actually socialize (because that’s the point, right?). Expect lots of conversation, a little “Wait… where are we?” and a whole lot of discovering how this city secretly works. It’s part walking tour, part social hang, part urban exploration. *** 🌧️ Rain or Shine (Mostly Shine Because… Indoors) This walk goes ahead rain or shine. The beauty of the PATH? We’ll be indoors for large portions of the route. That said, we’ll start above ground — so dress appropriately. It may be wise to bring a backpack or bag for your coat once we’re inside. You don’t want to be carrying it dramatically over your arm like you’re in a soap opera. *** 🐾 Important Notes Dogs are not allowed in the PATH system. Service animals are of course welcome. *** 🧢 Meetup Details 📍 Meetup Spot: Main entrance of Wellesley Station (near the bank of PRESTO machines) 🫎 I’ll be wearing my Moose Hat ⏰ Start time as listed — please arrive on time We’ll begin promptly so we can stay on route. *** 🎟️ **Meetup Fee:** $5 cash in person **or** e-transfer to 📧 \*\*[mathewmaclean@hotmail.com**](http://mathewmaclean@hotmail.com%2A%2A/) This fee helps support the group and allows us to keep hosting events like this. Thank you for supporting community! 💖 *** 🌈 Who Is This For? This group is open to anyone who wants to be social and make friends — whether single or not. We also host: 🎬 Movies 🚶 Walks & hikes 🎭 Arts & culture outings 🍽️ Restaurant meetups There’s always something happening. And remember — you can just show up on the day if you’re unsure about your schedule. *** ⚠️ A Gentle Reminder Sometimes life throws curveballs and events may need to be canceled — please keep an eye on updates. *** 👤 Organizer: Mathew Questions? Post on the event wall or email 📧 torontomoviesandoutings@hotmail.com Come for the tunnels. Stay for the laughs. Leave knowing a secret shortcut through downtown that most people still pretend to understand. Toronto has layers. Let’s go explore one of them. 🏙️✨

We experience and produce humour through the memes we spread and the inside jokes we share with friends, and we even use it when facing life’s most difficult challenges. Humour can help us bond, cope, and rethink our assumptions. But what makes something funny? Why do humour and the laughter it produces play an important role in our culture? One answer is that humour can help break down barriers and bring people together. As Victor Borge once said, “Laughter is the shortest distance between two people.” Humour can also be used as a social instrument to call out misconduct. How is it that humour fosters community and division at the same time? At our next Curiosity Café, we’ll revisit the silly and serious sides of humour, and explore the role that humour plays in how we connect, think and live. Together, we’ll discuss questions like: * How does humour help break down barriers and bring people together? * Does humour have a unique ability to help us find common ground and strengthen relationships? * On the other hand, does how we respond to humour have implications for our social capital? * How might jokes or humour be perceived by people from different backgrounds? * Is it possible to create humour that’s both provocative and inclusive? * How might humour give us a sense of control? * What is or should be the role of comedy in society? Join us for a lively and collaborative conversation moderated by Erik Ai and Dylan Michels, where we’ll explore questions, new and old, and (hopefully) share plenty of laughs along the way. **Space is limited!** **Please obtain a “Pay-What-You-Can” ticket from Curiosity Café at [this link (click here)](https://www.eventbrite.ca/e/curiosity-cafe-revisited-no-laughing-matter-humour-in-our-lives-tickets-1985339500891) to attend this event. You need a ticket to be admitted.** See the above link for more info about tickets and other options including a limited number of free tickets. Come and hang out with us, grab food, and read through our handout from 6-6:30pm. Our structured discussion will run from 6:30-8:30pm with a 10 minute break in the middle. Hope to see you there! ***__________________________________________________________________*** This event is brought to you by [Being and Becoming](https://beingnbecoming.org/), a Toronto based non-profit. We aim to create community around exploring everyday concepts and experiences so that we may live more intentional, thoughtful, and meaningful lives. We use philosophy as a tool with which we can come to a richer understanding of the world around us. By offering activities, spaces, and other opportunities for conversation and co-exploration, we hope to enable the meeting and fusion of individuals and their ideas. Everyone is welcome, regardless of background: indeed, we believe the journey is best undertaken alongside explorers from a variety of disciplines, cultures, backgrounds, and experiences. Find out more about Being and Becoming [here](https://beingnbecoming.org/). About the Curiosity Café Series: For those of you who haven’t had the opportunity to join us at our Curiosity Cafés and are wondering what they’re all about: every two weeks, we invite members of our community to come out to the Madison Avenue Pub to engage in a collaborative exploration of our chosen topic. Through these events, we aim to build our community of people who like to think deeply about life’s big questions, and provide each other with some philosophical tools to dig deeper into whatever it is we are most curious about.

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.

Ready to add more fun, movement, and connection to your week? Come join our group dance classes at [Access Ballroom](https://studioaccessballroom.com/)! We have classes **every day except Tuesday**—that’s Monday, Wednesday, Thursday, and Friday at 7:50pm, and Weekends at 3:40pm. Visit our [Monthly Calendar](https://studioaccessballroom.com/class-schedule/) to view the group class Schedule. To sign up you can also download our APP that is in both the Google Play store and the Apple Store. Just look up Access Ballroom. Whether you’re a total beginner or already have some moves, you’ll fit right in! We always have multiple teachers on hand to guide every level, so everyone gets the attention they need. Our amazing environment and welcoming atmosphere are what make us one of Toronto’s premier Latin and Ballroom studios—and it’s why we have the most Google reviews in the city! Don’t just take our word for it—come experience the energy, laughter, and community for yourself. We can’t wait to see you on the dance floor!

This group is to discuss and practice our French . Everu

7.30pm-10.30pm Social Dance Usually more than 50 people join us for a fun Salsa/Bachata night. The best way to end the weekend! You don't need to have a partner or be an experienced dancer. We provide two classes for beginner level and intermediate level. ◾When You Arrive ◾ - Sanitize your hands before entering the dance studio & in between dances, please - Do not come to dance if you show any symptoms of cold/flu ◾ Drop in : $15 ◾ * Every Sunday * 📍39 Glen Cameron Road, unit #1 Thornhill, Ontario From: 7.30 - 10.30 pm Cover fee: $15 at the door We will also be hosting two free salsa lessons and a bachata lesson: (it's included) *6.30pm-7.30pm Bachata L1 by Estephan [small room] *6.30pm-7.30pm Salsa by David [large dance studio] *7.30pm-10.30pm Sunday Social Dancing [large dance studio] * Music: Mostly Salsa & Bachata, some Merengue and a few Cha Cha and Kizomba. Come out and enjoy the night away! * Usually, more than 50 people are attending this social, and people switch partners, so you don't need to bring a partner. 647-504-9876

Hello everyone, I'd like to invite you out to our **Dinner with Friends Gratitude Party!** -Reserved seating, friendly people, good conversation and great food awaits! So please plan to join us if you can :) \*Joined by my other groups too; so we can anticipate a fantastic evening **Time: 6:30 p.m. -9:30 p.m.** **Location:** La Carnita - Good Fortune Bar (Main Floor) **Address:** 130 Eglinton Ave. Toronto, ON M4P 2X9 Event Details Bellow: Sincerely, Steve Flemming (Organizer/Host) Event Details: **Dinner with Friends Gratitude Party! (Dinner, Cocktails and Conversations)** -The great thing about this dinner party is you're free to move around to different tables and meet the other members too throughout the evening **Dinner Party Topics** may include but not limited too: Travel, Culture, Spirituality, Relationships, Modern Dating, Work/Life balance, Life after Marriage, Dating Apps, Comedy, History, Art, Technology, Economy, Music, Movies, Sports, Fashion, Hobbies, Books, Psychology, Philosophy, the Future, History, Pop Culture, Theatre, etc.) **Arrival Time:** \*Join us any time between 6:30 pm and 7:15 pm (if you can) for a fun and highly interactive evening as we get to know the members over dinner and great conversations (of your choice) Event goes until roughly 9:30 pm **Event Fee:** 5 dollars (cash only please) (HST included) or in advance by e transfer to **[steveflemming11@gmail.com](http://steveflemming11@gmail.com/)** \-\-\-\-\-\-\-\-\-\-\-\- **Friendly Reminder:** \*One beverage or appetizer minimum to support the venue- this is greatly appreciated :) \-\-\-\-\-\-\-\-\-\-\-\- **Parking Available:** \*Plenty of free street parking on Eglinton and (Residential area south/east of venue for free) **Close to Subway Station:** \*Also right beside the Yonge/Eglinton subway station :) \-\-\-\-\-\-\-\-

Archetypal Coaching — Activate Your Goals with Ancient Wisdom Ready to energize your goals and gain clear direction? In this weekly meetup, we work with powerful archetypes from ancient traditions to align your intention, sharpen your strategy, and ignite real momentum. 4 Sessions Per Month Tap into the power of 4 ancient traditions: • Egyptian — Strategic clarity & long-range vision • Scandinavian — Decisiveness & breakthrough energy • Greek — Harmony, inspiration & personal charisma • Sephirotic (Kabbalistic) — Deep integration & energetic anchoring. Each 90-Min Session Includes: • Group energy alignment (20 min) • Personal goal setting in the energy of the week’s tradition (20 min) • Group activation & anchoring (20 min) • Personal alanyses, archetypal insights & support circle (30 min). What You’ll Gain: ✓ Mental clarity & motivation ✓ Energetic support for your path ✓ Clear, inspired next steps ✓ A deeper connection to purpose. When: Every Sunday afternoon 4-6pm Fee: $50 CAD per session (Limited spots available) Facilitator: Andrey Litvinov — Business Coach, Psychotherapist, Grand Master of Reiki Yggdrasil To Reserve Your Spot: Pre-registration required via WhatsApp or Telegram Message: t.me/AndyTherapist WhatsApp: +1 437 606 6502

Hello everyone, Please join us for an inspiring, interactive and insightful afternoon as we continue to move closer to living the life we wish to live using the amazing and miraculous Law of Attraction. We're going to have a lot of fun too! \*Joined by my other personal growth and social groups too; so we can anticipate a terrific turn out, with wonderful like minded people **Date:** Sunday, March 29th 2026 **Arrival Time:** Arrive between 4:00 pm and 4:30 pm **Where to Meet us?** **Location: La Carnita - Good Fortune Bar (Main Floor)** **Address:** 130 Eglinton Ave. Toronto, ON M4P 2X9 **Free Parking:** on Eglinton and Residential area **Yonge and Eglinton Subway:** (Very close, 3 minute walking distance) Event Details below: Sincerely, Steve Flemming (Organizer/Host) \-\-\- Event Details: **LAW OF ATTRACTION: Live the Life You Truly Wish To Live!** **(Sunday, March 29th)** -Take your life to the next level with increased clarity, joy, fulfillment, abundance and peace -Deepen your understanding on how to apply the **Law of Attraction** so it works in all areas of your life (Personal, Professional, Social & Romantic) -Develop your confidence and sense of self so you are more open to receive what the universe wants to give you -Tap into your inner source of passions, talents and creativity that will guide you to a life beyond your wildest imagination *(And then ask the Universe for even more!)* \*Interactive, inspiring and insightful afternoon designed to help you live the life you truly desire and truly deserve to live (with greater flow, energy, ease and purpose) \*This event will be effectively facilitated with powerful insights, useful tools, practical exercises and group participation \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- ***Our Instructor/Facilitator:*** **Steve Flemming** is the founder of **Soul City Social Club since 2006.** He produces monthly events on subjects involving personal/spiritual growth, modern dating and healthy relationships while incorporating the **Law of Attraction and other useful tools.** Each event is designed to help you experience greater joy, inner peace, confidence, fulfillment, love, meaning and aliveness in our lives. Steve is a professional group Facilitator and Inspirational Speaker. Steve has an ongoing passion to help shift people's lives and consciousness for the better in areas that matter most to you. https://www.meetup.com/SoulCity/ \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- **When to arrive: (Ask for Steve when you arrive-or head to back area)** -Please arrive between 4:00 pm and 4:30 pm (to get registered and settled in) -The formal part of the afternoon will start shortly after 4:30 p.m. and go until roughly 6:30 p.m. -Stick around after for more mingling and our dinner party (optional) \*no extra charge for attending the dinner party event \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- **Event Fee:** 10 dollars upon arrival (HST included) (Cash only when you arrive or in advance by e transfer to- steveflemming11@gmail.com \-\-\-\- \*Lunch/Dinner & Beverage Menu available too \*Includes reserved seating for the group \*At least one Beverage and/or appetizer minimum to support the staff and venue \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- **Parking Available:** \*Plenty of free street parking on Eglinton and (Residential area south/east of venue for free) **Close to Subway Station:** \*Also very close to the the Yonge/Eglinton subway station \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-

**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.

**The Data-Driven Brand: Using Analytics to Shape Perception** Can you use analytics to improve tacos? This being CBUSDAW, we think the answer is probably “yes”, but we’re not sure how to implement or test this theory. For our April meetup we’ve got Sara Kear, CMO of Condado Tacos, to investigate this delicious question. Sara will explore how she blends quantitative data and qualitative customer feedback to shape brand positioning and drive business decisions. We all know that marketing and analytics go way beyond attribution. Sara will show how Condado uses customer insights to inform product and pricing strategy. She’ll also highlight how Condado leverages customer feedback at scale to influence operational priorities, positioning marketing as the voice of the customer across the organization. In the last 12 years Condado has gone from one location in Columbus to 52 locations across 10 states, so we’re guessing there’s more to that growth than really good guac (though the guac probably helps). Ultimately, this talk focuses on the intersection of art and science—using data to inform creativity and build a brand that resonates with customers in a measurable way. **About Our Speaker** Sara Kear is Chief Marketing Officer at Condado Tacos, where she oversees brand, restaurant design, menu and pricing strategy, off-premise including catering, and customer data strategy. Since joining in 2021, she has helped grow the brand from 19 to 52 locations while building a data-driven marketing organization focused on loyalty and customer insights. Condado has since been named to the Inc. 5000, recognized as Breakout Retailer by Chain Store Age, and consistently ranked among FastCasual’s Top 100 Movers & Shakers. Thanks to our 2026 sponsors: [Clarivoy](https://www.clarivoy.com), [What Box Consulting Group](https://www.whatboxconsultinggroup.com), [Conductrics](https://www.conductrics.com), and [Piwik PRO](https://piwik.pro) More info at [cbusdaw.com](https://cbusdaw.com)

If you enjoy knitting, crocheting, working with yarn, this is the group for you. Meet new friends, bring your projects, learn from others.
We normally meet a few times a month during the week from 6-8pm. We will occasionally meet on weekends during daytime hours.

**Improving Office in Franklinton** Physical location: Improving Office 330 Rush Alley Suite #150 Columbus, OH 43215 Schedule: 6:00 p.m.: Socialize, eat, and drink. Improving will be providing pizza and beverages. 6:30 to 8:00 pm. Main meeting and presentation(s). Topic: Type Annotations with John Cassidy We meet on the last Monday of each Month. Presentations are given by members and friends of this group. If you would like to do a presentation (small or large) on a python topic, please contact Central OH Python at centralohpython@gmail.com

The Fellowship of the Star Schema: Transforming OLTP Data for Power BI One does not simply build reports on OLTP data. Join us on an epic journey from the depths of raw, normalized tables to the shining halls of a well-modeled star schema fit for Power BI greatness. We will demystify the differences between OLTP and OLAP, walk through star schema vs snowflake (and why Power BI has a clear favorite), and show you the compression differences between normalized and columnar storage that will make you never look at an OLTP model the same way again. We will cover the different types of dimensions, when to use them, and how to handle Slowly Changing Dimensions without losing your mind. You will leave knowing exactly how to identify a bad model, how to convert OLTP data into a clean star schema, and how to forge relationships that rule them all. Whether you are a data wizard, a curious hobbit, or somewhere in between, your models will never be the same.