Cryptography

**Shake off the week at the Reggaeton Beginner Class at The Vibe!** Whether you’ve never danced before or just want to move your body and have a good time, this class is all about good energy, Latin beats, and letting loose. Expect empowering Reggaeton grooves, body rolls, confidence-boosting combos, and a whole lot of fun — no pressure, no judgment, just pure VIBES! Your teacher Nat (@nat.so.fun) will guide you through all the steps, help you feel the rhythm in your body, and hype you up from start to finish! *Don’t be fooled by the number of people on the event page — our weekly crew ranges from 10 to 20 amazing humans: first-timers, regulars, and a few silent fans who never mark “going” but always show up 😉* *** ### **Booking is mandatory!** To secure your spot, please book in advance via our website: [BOOK HERE](https://www.thevibedance.ch/schedule) *** ### **Rates** 💃 Single Class: CHF 28 → Zurich Together Special: CHF 24 (15% off) Use code **"ZhT_VIBE"** at checkout *** ### **When?** **FRIDAY** **18:30 – 19:30 \| Beginner Reggaeton** *** ### **Where?** **The Vibe Dance Studio** Hohlstrasse 488 8048 Zürich (Just 3 minutes from Altstetten Train Station and 15 min from HB) *** ### **More info:** 🌐 [thevibedance.ch](https://thevibedance.ch/) 📸 Instagram: [@nat.so.fun](https://www.instagram.com/nat.so.fun) \| [@thevibedance.ch](https://www.instagram.com/thevibedance.ch) Got questions? Just text or call: 📞 +41 78 329 71 77 *** **See you on the dance floor – let’s Reggaeton together!** 💥🫶💃

Freitags, 10:00–10:40 Uhr, 23. Jan–27. März 2026, Kadampa Meditationszentrum Schweiz, Mirabellenstrasse 1, 8048 Zürich-Altstetten, 7.50CHF, https://www.kadampa.ch/freitag-morgen-meditation/ Gönn dir eine 40-minütige Atemmeditation mit einfühlsamen Erklärungen, die dir hilft, zur Ruhe zu kommen und neue Energie zu tanken. Spüre, wie dein Geist klarer wird, sich innere Anspannung löst und du dich leichter fühlst. Diese Meditation ist die perfekte Gelegenheit, dich bewusst mit dir selbst zu verbinden und den Übergang ins Wochenende achtsam zu gestalten. Die geführten Meditationen sind Drop-In-Kurse – eine Anmeldung ist nicht erforderlich. Komm einfach vorbei, geniesse die wohltuende Atmosphäre und starte deinen Freitagmorgen voller Gelassenheit.

Hello dear Challengers, if you wish to join the Limmat swim and strengthen your body, join me to that swim. I will give you a short introduction on the "why" you should do it and then you will tell me if you want to do it. I am a trained lifeguard (SLRG), I did also the Hypothermia Module and I am swimming in the cold since 2015. Take with you all the necessary to swim, flip/flop, safe buoy (something like the orange donut here below, if you have it) and a Thermos. https://secure.meetupstatic.com/photos/event/a/a/7/5/600_466843637.jpeg See you there! Massimo ps: Limmat temperature https://www.zh.ch/de/umwelt-tiere/wasser-gewaesser/messdaten/wassertemperaturen.html

**Join Us for Marketing Meetup Friday!** 🎯 Calling all marketers in Zurich – whether you’re slinging ad campaigns, crafting content, running strategy, or just curious about where marketing is heading next... this is the place for you! 🚀 We’re meeting up for an easygoing after-work apéro to chat, connect, and share ideas on how we’re all navigating the wild (and rapidly changing) world of marketing. Expect good atmosphere, great people, and the kind of conversations that don’t happen over Zoom. 😉 This meetup is part of a growing community of 500+ marketing professionals, entrepreneurs, and marketing enthusiasts based right here in Zurich. We kicked things off in May 2025, and since then we’ve been meeting monthly to swap ideas, grow our network, and inspire each other to get better at what we do. This is already our 8th event, and the energy keeps building! **When?** * Friday, February 20th at 19:00 **Where?** Schauspielhaus Schiffbau – at Schiffbau Bar 📍 Schiffbaustrasse 4, 8005 Zürich (Closest tram stop: Schiffbau – or just a short walk from Hardbrücke. on the opposit side of the main road to SOHO.) **What to Expect:** A cozy get-together with marketers of all stripes – agency folks, in-house pros, freelancers, entrepreneurs, brand builders, growth hackers, SEO nerds, and everything in between. Whether you come to swap ideas, make new connections, or just sip a glass of wine in good company – you’re welcome here. When you arrive, you will see a sign with our logo, and I (Antonia) will be there to say hi and point you towards the group. 👋 **WhatsApp:** Stay in the loop — join our [WhatsApp Community](https://chat.whatsapp.com/FrvMFseIB7SGFTKmeGoD7s) for real-time event updates and reminders. **LinkedIn:** Be part of the conversation — join our [LinkedIn group](https://www.linkedin.com/groups/13240084/) for key announcements, the latest community news, and to connect with fellow local marketers. **Do I Need to Register?** Nope! But if you hit "Going," it helps the bar staff (and us) know how many awesome people to expect. 💡 **Photos & Videos at the event** Please note that photos and videos will be taken during the event for documentation and promotional purposes (e.g. on our social media, and future event materials). By attending this event, you acknowledge and agree that you may appear in such photos or videos, and consent to their use and publication by the organizers. If you do not wish to be photographed or filmed, please inform the event organizer upon arrival. Got questions? Just drop a comment or message us directly. Let’s raise a glass to smart ideas, fresh inspiration, and great company. Looking forward to meeting you! 🥂✨

This is one of our most popular events, which has been going on for decades. Anyone is welcome to join us! No registration or membership is required to join us in this friendly atmosphere to meet new people and catch up with old friends - a great way to build a network within the greater community.

Every last Sunday of the month ( Women only event) A chance to meet - swap books, grab a coffee and have a chit chat How it will work • Bring a book or two you have read and happy to swap (please do not expect it to be returned we are swapping ) • Grab a coffee have a chat and browse through the books on offer • Rule - please take the same amount of books you donate ( this enables all who donate get a book and also means the host is not carrying home left over books 😅) * If you dont have a book - please still feel free to join for coffee and chit chat join the WhatsApp chat here https://chat.whatsapp.com/IQ44Sqnm2iIDanJAEzqAzb

SUNDAY FUNDAY Join us for our monthly Brunch catch up :D **All you can eat!** A delicious selection of hot and cold options 1 Coffee or Tea and 1 Orange Juice included. After midday Pasta options also become available CHF 48.00 per person Menu Info [HERE](https://www.ambrosi.ch/sonntags-brunch/) Limited seating / ONLY BY CONFIRMATION Please **join the chat** **[HERE](https://chat.whatsapp.com/ImecPuRlcMx0ND8RBp19Y5)** and **seating has to be confirmed** in the chat!

Welcome to the Open Level Play Session. This session takes place every Saturday from 12:15 to 13:45 at the Yonex Badminton Hall Hardbrücke. The number of players on the waitlist one week in advance determines the number of courts booked. If you are on the waitlist but can no longer attend, please remove yourself as early as possible. Open to players of all skill levels. This session is for doubles with a relaxed and social focus. Ideal for casual play, improvement and meeting new players. Payment can be made via TWINT after the session.

**⚠️ Ticket needed :** [https://social-circle.ch/](https://social-circle.ch/) Take a break from screens and reconnect with yourself and others at our Digital Detox event in Zürich’s most inviting creative space, Paint it Easy. We’ll kick off the evening with a relaxed atmosphere, setting the tone for a mindful and inspiring night. 📲Join our craft group: [https://chat.whatsapp.com/JPIASNUJGwD23UUweSe0s3](https://chat.whatsapp.com/JPIASNUJGwD23UUweSe0s3) Choose your path for the evening (workshops are first come, first served): 💬 **Connection, Play, Learn** **Workshop:** Reducing your screen time ✨ **Want to continue your digital detox after the event?** For those who feel inspired to go deeper, you’ll have the option to join a **30-Day Unplug Challenge** 📵 A gentle, playful program with small weekly offline challenges, reflection prompts, and an accountability buddy — designed to help you reduce screen time and build healthier habits, without going extreme. Details will be shared during the event 💛 **Deep Talk with Question Cards:** Dive into meaningful conversations and connect with fellow participants on a deeper level. **Boardgames:** Just for fun or to meet new people. 🎨 **Creative Activities:** * **Drawing** (included) * **Canvas Painting** (CHF 10/hour + canvas, e.g., 30x40 cm: CHF 9) * **Pottery Painting** (CHF 20–45 per piece) * **Jewellery Making with Beads** (CHF 10/hour + materials, avg. CHF 20–30) * **Linocut Printmaking** (CHF 25–35 per piece) 📍 **Location:** Paint it Easy, Zürich 💰 **Early Bird Ticket:** CHF 15 (standard CHF 18) **Includes :** Welcome drink\*, drawing material, notebook, games, workshop **Doesn't include** : optional creative activity fees (depending on your choice) *\*Warm drink, homemade iced tea, or lemonade* No experience needed—just bring your curiosity and an open mind! Whether you're painting, reflecting, or connecting, this is your space to recharge, express, and enjoy. ​📸 Photos and short videos may be taken during the event. Let the host know if you prefer not to be in them. Tickets are non refundable. Want more events like this? Join our community! [https://chat.whatsapp.com/DNCKCapTzlSKqBqS8EQckJ](https://chat.whatsapp.com/DNCKCapTzlSKqBqS8EQckJ)

Ending the Sunday afternoon and weekend in style with a fat rave. ENTRY IS FREE Music styles: House, Afro House, Melodic House, Melodic Techno, Tech House Date: Sunday 22.02.2026 Time: 15:00 - 20:00 Address: Cave Club, Langstrasse 81, 8004, ZH LINEUP Monte Carlo (15:00-16:00) Double Nine (16:00-17:00) Ancient Astronaut (17:00 - 18:30) Talkback Heads (18:30 - 20:00)

Welcome to the Competitive Play Session. This session takes place every Saturday from 10:45 to 12:15 at the Yonex Badminton Hall Hardbrücke. The number of players on the waitlist one week in advance determines the number of courts booked. If you are on the waitlist but can no longer attend, please remove yourself as early as possible. Players are accepted into the session based on skill suitability. This session is for experienced players looking for quality games. Play is focused on doubles with a competitive mindset and consistent rallies. You should be comfortable smashing, return smashes and keeping up a moderate tempo throughout the session. New players and those who are new to badminton are welcome to join the PM Session (Open Level Play). Payment can be made via TWINT after the session.

Let's make new friends! Join us for an exciting fast-friending event! Whether you’re new to the city or simply looking to grow your circle, this is your chance to connect, laugh, and have a great time with like-minded ladies & gents! **You will need to buy a ticket for attending -** [https://zurich21stfeb.eventbrite.co.uk](https://zurich21stfeb.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. TICKETS:- Early bird - CHF 10 Regular ticket - CHF 15 Cash at the meetup - If you have not purchased your ticket in advance then you can pay CHF 20 per person in cash on the day of the meetup to Neo (Please bring exact change) 'Fast friending' is our fun and quick way to help you make new connections quickly with both ladies and gentlemen. These are people in the age group of 21 and 40 and so you will be on a similar wavelength. Naturally you can always choose who to speak with based on your preference! **Here’s how our Fast Friending works:-** \- We will meet at 7\.00 and have time to get settle down and get a drink\. \- From about 7\.30 to 8\.30 we will run the fast friending system\. Half of the group \(mixed gender\) will stay in a fixed place and the other half of the group \(mixed gender\) will be asked to rotate\. During these intervals\, each pair of people will get the opportunity to talk to each other\. \- Neo will be hosting the evening and she will organize the fast friending process\. She will indicate when you should move to the next person\. \- From 8\.30 onwards we will stop the system and people will have to chance go chat and interact with those they have met as well as others\. If you are a bit shy or anxious then please come early. Neo will help you meet other members in a small group and help you settle down and get comfortable. \- 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 21 to 40 age group\. \- Our evenings are not about 'dating' or for 'romantic' connections\. 'Fast friending' is NOT 'Speed dating'\. 'Fast friending' is designed to help members meet other like minded ladies and gents\. It is about new friendships and connections\. Naturally\, new friendships can lead to dating or romantic connections\, but that is not our focus\. 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 of socializing at our meetups - [http://bit.ly/secrets-socializing ](http://bit.ly/secrets-socializing) How to make new friends - [https://www.youtube.com/watch?v=v6GB0Hc_bSs](https://www.youtube.com/watch?v=v6GB0Hc_bSs) How to make people like you at our socials -[ https://www.youtube.com/watch?v=K4guProkKrI](https://www.youtube.com/watch?v=K4guProkKrI) Why you should attend our evenings - [https://www.youtube.com/watch?v=wEjwGBXzJE8](https://www.youtube.com/watch?v=wEjwGBXzJE8) Member feedback - [https://youtu.be/bF_oxrWGqus?si=8ewukkeawt1N12nm](https://youtu.be/bF_oxrWGqus?si=8ewukkeawt1N12nm)

Bring your work or your hobby, hang out, and code with us. Follow @buckeyecocoa for more information.

As you may or may not know--I didn't until late last year--Aristotle wrote extensively on "friendship" in the Nicomachean Ethics. After 69 years the concept of friendship still creates questions and uncertainty. I had close friends in high school and for a few years after high school but our interests diverged and people moved all over the country so it was hard to maintain connections. * So if I/you haven't talked with a friend for several years, are you still friends? Are we friends who meet at Drunken Philosophy or Omnipresent Atheists? * Can you be friends with someone with whom you have virulently divergent political views? Sartre and Camus could not. * Aristotle regarded friendship as essential to a good life, not merely an added "bonus." Do you agree? * In the Nicomachean Ethics (Books VIII and IX), he claims that wealth and power are meaningless without friends. Trump has wealth and power but seems to have no real friends, but wealth and power seem meaningful to him in perverted ways. Can you have meaning in your life without friends? * Do men and women view and maintain friendships in different ways? * Aristotle categorizes friendship into three types, based on what forms the bond: * **Utility**: Based on mutual benefit, but this type is fragile and ends when the usefulness ceases. * **Pleasure**: Based on shared enjoyment (e.g., humor, hobbies). Common among youth but fades as interests change. * **Virtue (The "Complete" Friendship)**: Based on mutual respect for each other's character and goodness. You wish good for the other for their sake, not yours. * **Key Principles of "True" (Virtuous) Friendship:** * **Permanence**: Virtuous friendships last a lifetime whereas those based on utility and pleasure are fleeting. * **Reciprocity**: Requires mutual goodwill; secret or unreciprocated affection does not qualify. * **The "Second Self"**: A true friend is "another self"—their virtue helps you understand and improve yourself. * **Time and Intimacy**: Deep ("complete") friendships are few, built on time and shared experiences. * **Self-Love and Friendship:** * Good friendship starts with being a friend to yourself. * They distinguish shallow egoism (chasing honors) from real self-love (pursuing virtue). * A virtuous person’s pleasant self-company allows them to be a stable, good friend to others. * Aristotle argues that one's social circle ultimately reflects one's character—a view with striking relevance today. Well--the Drunken Philosophy social circle certainly reflects good character!

Want to be a speaker? submit your talk to our Call for Presenters!!! https://sessionize.com/cbus-hug-2026/

**NEW LOCATION: 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). See the handy Parking Map - we recommend street parking. [Street Parking Map](https://docs.google.com/presentation/d/1u2A4fLNlxwLJn0KA_hKc8bnFlFHLvsHBDh-_8wzX_tk/edit?usp=sharing) 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 centralohpython@gmail.com

Private Group. Closed to the Public Knowing ourselves and understanding our abilities is the first step toward wielding our gifts with control and accuracy. In subsequent classes we will verify and hone our talents with activities and discussion. These are hands-on workshops and participation is expected. The goal of our series will be to develop expertise in areas of particular interest such as mediumship, channeling, divination, healing and, etc.. Our ultimate directions will be determined by class members as we evolve. I look forward to sharing and discovering with you. - Cynthia

Come out to Improving for our monthly iOS and Mac meetings. This Month's Presentation: Nothing yet. (You should volunteer). What is Cocoaheads (http://cocoaheads.org/)? CocoaHeads is a group devoted to discussion of Apple Computer's Cocoa Framework for programming on MacOS X and iOS (including the iPhone, iPad and Apple Watch). During monthly meetings, members present on their projects and offer tutorials on various programming topics. What is BuckeyeCocoa (http://buckeyecocoa.org/)? BuckeyeCocoa is a group of Objective-C/Swift developers/enthusiasts. We host monthly Cocoaheads and near-weekly NSCoder meetings in Columbus, Ohio. The meetings are free to attend. Presentations! Presenters welcome! We are always in need of people willing to present material. Any Swift and/or Objective-C related topic is welcome. Times can be 5 minutes (i.e. lightning talks) to a maximum of 2 hours. Interested? Contact info is on the BuckeyeCocoa website. To volunteer for a presentation contact us at @BuckeyeCocoa on Twitter. Follow us on Twitter! @BuckeyeCocoa (https://twitter.com/#!/Buckeyecocoa/) For more information: http://buckeyecocoa.org/

**Important time note:** Please plan on arriving between 5:30 and 6:00 as the elevators lock after 6 and you'll need to message us and we'll need to come get you. The building address is 4450 Bridge Park The entrance is 6620 Mooney St, Suite 400 You will need to scan your ID at the door to get a visitor badge. **Abstract** *Spec-Driven Development with GitHub Spec-Kit: From Intent to Implementation* Spec-driven development flips the traditional workflow on its head: instead of code being the source of truth, the specification becomes the backbone of design, collaboration, and delivery. In this session, we’ll explore how GitHub Spec-Kit enables teams to treat specifications as first-class artifacts—living documents that drive architecture, implementation, and verification. You’ll learn how Spec-Kit helps teams clearly express intent using structured, version-controlled specs that live alongside code. We’ll walk through a practical workflow that starts with defining system behavior and constraints, then progressively refines those specs into testable, automatable outcomes. Along the way, we’ll show how specs can reduce ambiguity, improve cross-functional collaboration, and make design decisions explicit before a single line of production code is written. This talk will cover: --What spec-driven development is (and what it isn’t) --How GitHub Spec-Kit fits into modern developer workflows --Using specs to align product, engineering, and AI-assisted development --Real-world examples of turning specs into implementations with confidence Whether you’re building greenfield systems, integrating AI into your stack, or trying to reduce costly rework, spec-driven development offers a scalable way to move faster without sacrificing clarity. Attendees will leave with concrete patterns and a clear mental model for adopting GitHub Spec-Kit in their own projects. **YouTube Link** TBA