Optometry

Join us for an evening of French conversation at B Espresso Bar in the atrium of the Toronto Royal Conservatory of Music (near St. George station)!
We welcome all levels of French, and it's free\*.
Venez pratiquer votre français! \*While there is no fee to attend this event, guests are expected to purchase something from B Espresso Bar, in accordance with RCM's restrictions on usage of the cafe atrium space. **Building location:** The Royal Conservatory is at 273 Bloor St W, between Varsity Stadium and the Royal Ontario Museum (ROM). There are entrances off Bloor St. and Philosopher's Walk. If you enter from Bloor St through the large glass doors, follow the hallway on the left beside the staircase and turn left at the end. (Closest TTC: St. George) **Notes and restrictions:** The host may or may not attend this event. Attendees are encouraged to seat themselves at two or more adjacent tables, as needed. Please form groups of 6 people at each table; do not rearrange chairs and tables to accommodate more people, as this obstructs the narrow walking space. Guests are expected to order something from the cafe, and are asked to please refrain from bringing outside food or drink. Attendees must leave the building at 8pm when the cafe stops serving. **Contributions:** If you are a regular with us and would like to support the group, please send any contributions by e-transfer to [diskutomeetup@gmail.com.](http://diskutomeetup@gmail.com.) The yearly donation goal and amounts received year-to-date will be tracked anonymously on [this google sheet](https://docs.google.com/spreadsheets/d/18GfqYsis8Cf2XGg4KsKQJsY_0Fv3bsSQHwJAxvC1Km8/edit?usp=sharing). Thank you so much for your support.

**First Meetup: Trix & Tarneeb Night** Come join us for a relaxed evening of cards, good company, and great beverages! Whether you're a seasoned Trix player, a Tarneeb devotee, or just curious about these beloved card games, you're welcome at the table. We'll be gathering at a local café to shuffle up, deal out, and enjoy some friendly competition over coffee and bites. This is all about having fun and connecting with fellow card game enthusiasts — no pressure, no scorekeeping, just good vibes. Come with friends or come solo – you'll be put together in groups of 4! Bring yourself, bring a friend, and get ready to play! **What to expect:** * Casual games of Trix and Tarneeb throughout the evening * A welcoming crowd of all skill levels * Great café atmosphere with food and drinks on hand * A chance to meet people who share your love of cards New to the games? No worries — experienced players will be happy to walk you through the rules. See you there!

**This is a ticketed event. Please register at [this link](https://luma.com/wbpv7ouu).** In this talk, Talha Paracha will present insights from his latest research on using language models for improving software security ("Hallucinating Certificates", to appear at ICSE 2026). Certificate validation is a crucial step in Transport Layer Security (TLS), the de facto standard network security protocol. Prior research has shown that differentially testing TLS implementations with synthetic certificates can reveal critical security issues, such as accidentally accepting untrusted certificates. Paracha et al. introduce a new approach, MLCerts, to generate synthetic certificates that leverages generative language models to more extensively test software implementations. Recently, these models have become (in)famous for their applications in generating content, writing code, and conversing with users, as well as for "hallucinating" syntactically correct yet semantically nonsensical output. The authors leverage two novel insights in their work: (a) TLS certificates can be expressed in natural-like language, namely in the X.509 standard that aids human readability, and (b) differential testing can benefit from hallucinated malformed test cases. MLCerts finds significantly more distinct discrepancies between the five TLS implementations OpenSSL, LibreSSL, GnuTLS, MbedTLS, and MatrixSSL than the state-of-the-art benchmark Transcert. ​​​**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).

Eventbrite Link: **[https://www.eventbrite.ca/e/448735799857?aff=oddtdtcreator](https://www.eventbrite.ca/e/448735799857?aff=oddtdtcreator)** **Indulge in Wednesday wonders! Toronto's comedy sensation unfolds at 8 PM. Unwind with laughter in the heart of the week.** Step into a world of Wednesday wonders at 8 PM! Backroom Comedy Club invites you to a midweek escape filled with uproarious laughter and top-tier stand-up comedy. Join Toronto's finest comedians for an unforgettable evening of entertainment. Reserve your seat now and make your Wednesday delightful with humor, wit, and the best of the city's comedy scene!

*To join this event, you must be able to speak full sentences in Mandarin. This event is for those wanting to practice Mandarin and/or English. Here, you can chat with others and play board games in either language to improve your linguistic skills. Feel free to join our WeChat group during the event, as it is the best way to stay connected with us. If you have any questions, leave a comment on this event page. ＜中文版＞ 此活动是以聊天和玩桌游练习中文或英文，等级不限，平时有6-10位参加者。此活动微信群可在活动中加入，互相学习，天天向上。 如果您有任何疑问，请随时在活动页上留言或联系主持人

Welcome! We’re excited to have you join us for games, fun, and great company. To make sure everyone feels safe and respected, we ask that all attendees follow these simple rules: **💰 Cover Fee & What’s Included** * A cover fee of $12 will apply (plus HST and an 18% gratuity) - regardless of arrival time. Please arrive early if this is a concern. * Access to our full game library for the duration of your visit * $4 off any food or drink item (valid same day only) * Friendly staff on hand to recommend games and help you get started! **💬Be Kind & Respectful** * Treat others with courtesy, patience, and good sportsmanship. * All skill levels are welcome — help newcomers feel included! * Disagreements are fine, but bullying, shouting, or rude behavior is not. **🚫 Zero Tolerance for Harassment** * Harassment of any kind will not be tolerated. This includes: * Unwanted touching, comments, or attention * Hate speech, slurs, or discrimination based on race, gender, sexuality, ability, religion, or background. * Stalking or intimidation * Inappropriate or sexual behavior **🧼 Help Keep It Fresh (Hygiene Policy)** * Please arrive clean, in freshly laundered clothes, and use deodorant. * Wash your hands before games, especially after eating. * We will take action on repeat offenders if hygiene becomes an issue. **🧍 Respect Personal Space & Boundaries** * Ask before touching someone or joining a game. * No pressuring others into playing or socializing. * If someone says “no” or seems uncomfortable, respect it immediately. **🎥 Photos & Privacy** * Always ask before taking someone’s photo or video. * Do not post images of others without permission. **🧑‍⚖️ A Message from the Venue** * The venue will close at 11:00 PM sharp. Please keep this in mind when starting new games near closing time. * Our staff are here to help. Please follow their guidance — especially if they step in to address a concern. * Repeated or serious violations will lead to removal from the venue and this Meetup group. 📍 Location: 3216 Yonge Street, Toronto, ON M4N 2L2 🕖 Time: 7:00 PM – 11:00 PM 🍽️ Food & drinks available on site. No outside food, please. 🎟️ RSVP required — space is limited!

Canadas only weekly all women comedy show! Grab your tickets here [Tickets](https://www.eventbrite.ca/e/femme-fatale-comedy-the-funniest-women-in-comedy-tickets-852445356007?aff=ebdssbdestsearch)

Eventbrite Link: **[https://www.eventbrite.ca/e/436240616427?aff=oddtdtcreator](https://www.eventbrite.ca/e/436240616427?aff=oddtdtcreator)** **Savor the laughter at Sizzling Saturdays! Toronto's comedy spectacle starts at 8 PM. A night of uproarious fun awaits!** Join us for a sizzling Saturday night at 8 PM! Backroom Comedy Club presents a comedy extravaganza featuring Toronto's top comedians. Immerse yourself in an evening of wit, humor, and uproarious laughter. Make your Saturday memorable—reserve your seat now for an unforgettable entertainment experience!

A diffuse harm hurts many people a little; a concentrated harm hurts one person a lot. Other things equal, diffuse harm seems less bad than its concentrated counterpart. For example, shortening a billion happy lives by a second each seems less bad than shortening one happy life by a billion seconds (\~30 years). But this attractive thought is surprisingly difficult to maintain. Although many problems for such a view are known, a particularly vivid difficulty arises in cases that involve a sequence of social positions, each very similar to the last, such as the Fortuna’s Wheel scenario. In such cases, it follows, from rather minimal assumptions, that diffuse harm is just as bad as its relevantly similar concentrated counterpart. In response, some may wonder whether the parity of diffuse and concentrated harms holds only in these special sequential cases. But it can be argued that the approximate parity of diffuse and concentrated harms extends well beyond such cases. Specifically, it can be argued that in many realistic cases, a diffuse harm will bring about an outcome approximately as bad as a relevantly similar concentrated harm. Diffuse harm is easily underestimated. Zach Barnett https://philosophy.nd.edu/people/faculty/zach-barnett/ Assistant Professor Department of Philosophy University of Notre Dame **About the Speaker:** Zach received his PhD from Brown University in 2018. He joined Notre Dame in 2023, moving from the National University of Singapore, where he taught for five years. Zach mainly studies ethics, practical rationality, and epistemology, and he hopes that his work is convincing, surprising, and easy to understand. Current research interests include collective action problems, aggregation and risk, and followability of norms. His representative publications include "Rational Moral Ignorance" (2021) in *Philosophy and Phenomenological Research*, "Why You Should Vote to Change the Outcome" (2020) in *Philosophy & Public Affairs,* "Philosophy Without Belief" (2019) in *Mind*, and "No Free Lunch: The Significance of Tiny Contributions" (2018) in *Analysis*. **\* \* \* \* \* \* \* \* \* \* \* \* \* \* \* \* \* \* \* \* \* \* \* \* \* \* \* \*** This is a talk with audience Q&A presented by the University of Toronto's Centre for Ethics that is free to attend and open to the public. The talk will also be streamed online with live chat here [to be posted]. About the Centre for Ethics (http://ethics.utoronto.ca): The Centre for Ethics is an interdisciplinary centre aimed at advancing research and teaching in the field of ethics, broadly defined. The Centre seeks to bring together the theoretical and practical knowledge of diverse scholars, students, public servants and social leaders in order to increase understanding of the ethical dimensions of individual, social, and political life. In pursuit of its interdisciplinary mission, the Centre fosters lines of inquiry such as (1) foundations of ethics, which encompasses the history of ethics and core concepts in the philosophical study of ethics; (2) ethics in action, which relates theory to practice in key domains of social life, including bioethics, business ethics, and ethics in the public sphere; and (3) ethics in translation, which draws upon the rich multiculturalism of the City of Toronto and addresses the ethics of multicultural societies, ethical discourse across religious and cultural boundaries, and the ethics of international society. The Ethics of A.I. Lab at the Centre For Ethics recently appeared on a list of 10 organizations leading the way in ethical A.I.: https://ocean.sagepub.com/blog/10-organizations-leading-the-way-in-ethical-ai

Pay attention! We’re delaying a week for those of you who may be on Spring break and/or celebrating the holiday. Ok, no pancakes, but waffles-a-plenty. Join the local UX and Digital Design community for a casual monthly breakfast. Look for us upstairs!

Whether you've never done improv before, or you've done it for so long you knew Del Close on a personal level, or anywhere in between, come join us! Swing by *Gresso's* for the **Columbus Improv Comedy Meetup** for some fun and games! The idea behind improv is to create entire scenes from scratch based on a suggestion from the audience. This can be done in game form, like *Whose Line Is It Anyway*, *ComedySportz*, or *Wild 'n Out*; it could also be done to tell stories, like *Middleditch and Schwartz*. Our meetup, which is central Ohio's longest running (and free!) weekly comedy event, brings the games (and occasionally different forms) for you to play in a safe, supportive, and compassionate environment. Not only is it a lot of fun, but you get to work on thinking faster on your feet, plus it's an excellent way to meet new people and make friendships that'll last a lifetime! Ask yourself if you want to join the **Columbus Improv Comedy Meetup**, and say "Yes, And" that you'll have fun!

Let’s try this popular Italian restaurant in Reynoldsburg. This is the menu: https://scaliristorante.com/#4e468054-0235-43e2-81c2-44e061341e9e

Over time I'm hoping to organize a hike to all the Franklin County Metro Parks. This is the first one so if you're interested jump in! We'll start with the Canopy Walk, a cool feature of this park. Climb 100 stairs to the top - or take the elevator if stairs aren't your thing. At the top there are a bunch of things to play on - a rope bridge, a fireman pole that we can slide down - and more! About fifteen minutes there and we'll head to the natural trail, Buttonbush, Maple and Beech Trail for 2.2 miles then do a 1.7 mile loop on the paved Greenway Trail. We'll be passing our cars as we transition if you only want to do the first loop, or the second loop. Pace of around 3.5 mph but no one left behind. If there is an interest we can grab lunch nearby afterward.

MCKS PRANIC HEALING® Level I In PRANIC HEALING® Level 1, you learn the basics of working with your energy aura, including learning to "scan," or feel the energy, to "sweep," or clean away congested energy, and to "energize," or supplement areas in your aura that have a pranic deficiency. PRANIC HEALING® has been taught to doctors, nurses, massage therapists, acupuncturists, chiropractors, shiatsu practitioners, and many others in the healing field. It has allowed them to heal confidently and consistently in the shortest learning time possible. These professionals find PRANIC HEALING® very effective and easy to apply. Other topics covered in PRANIC HEALING® Level 1: Energetic anatomy: You will learn to work with the network of chakras, meridians and auras to accelerate the healing processes of your body. Preventive healing: You will learn to remove the negative energetic patterns of a disease to prevent it from fully manifesting as a physical ailment. Self-Pranic healing: You will learn to apply these healing techniques to accelerate your own healing. Step-by-step techniques for ailments related to your: respiratory system, e.g., asthma,; circulatory system, e.g., heart ailments; gastrointestinal system, e.g., irritable bowel syndrome; musculoskeletal system, e.g., arthritis and back pain; reproductive system, e.g., menstrual problems. You'll also learn how to address common problems as migraines and sinusitis. Additionally, you'll learn to apply distant healing to loved ones who are not present in the room with you. All PRANIC HEALING® courses are "experiential," which means that you learn by actually performing the techniques and exercises in class - on yourself and those around you. During class, all the principles will be explained thoroughly and you will practice the techniques exhaustively so you will be confident in your ability to produce positive results when you finish the course. This is Day 2 of 2 Attendance at day one is required to attend day 2. The Course text book is Choa Kok Sui, "Miracles through Pranic Healing" Please bring this with you to class. PRANIC HEALING® Level 1 is a prerequisite to all other GMCKS courses. For those interested to review the class...Review fee is only $75!! LOOK AT THIS!! Review for FREE when you bring a new student to class with you.

Love getting lost in a good book? [The Book Loft](https://www.bookloft.com/) of German Village is an iconic independent bookstore packed with hard-to-find literary treasures! This isn’t your run-of-the-mill bookstore; it’s a 32-room literary wonderland that would make even the most seasoned bibliophile’s head spin (one of the largest in the country)! **MEET**: We'll gather outside the storefront and then start browsing... **DESSERT**: We'll grab some famous macaroons to start our foodie tour. [Pistacia Vera](https://www.pistaciavera.com/) is a delicious bakery and cafe in the German Village. This charming shop is especially known for its classic macarons. **HAPPY HOUR**: Italian drinks and bites at [Cento's happy hour](https://centogermanvillage.com/menus/). **PARKING**: Street parking all around here. Check the parking time limit. The bookstore and the foodie stops are all on 3rd Street within 4 blocks on the same side of the street.