Complexity

Back in August, we explored how Design Thinking can help us uncover and validate the right problems. But even when we agree on what to build, things often go wrong, not because of bad solutions, but because we don’t fully understand what the problem actually means in practice. In this session, we’ll build on that idea and focus on the next step: turning vague ideas into something concrete, shared, and testable. Using Example Mapping - a lightweight technique from Behaviour-Driven Development (BDD) - we’ll work in small groups to: * Break down a feature into rules, examples, and questions * Surface hidden assumptions and edge cases * Align on what the behaviour of a system should actually look like If the previous session was about finding the right problem, this one is about understanding it well enough to build it right. This is a hands-on workshop. Be prepared to participate fully and add to the energy of the room. Looking forward to seeing you there!

**Center Berlin Toastmasters: Put your words into action** New time: 7pm please arrive 10 minutes earlier. Join us for an exciting event where you can **put your words into action**! Toastmasters Berlin is hosting this **in-person event** at the **St. Lukas Church**. It's the perfect opportunity to enhance your public speaking skills, gain confidence, and connect with like-minded individuals. At Center Berlin Toastmasters, we believe in creating a supportive and encouraging environment for everyone. Whether you're a seasoned speaker or just starting out, you'll find a place to grow and improve your communication skills. Our experienced members will provide valuable feedback and guidance to help you become a more effective speaker. Don't miss this chance to **challenge yourself** and expand your horizons. Join us at the **St. Lukas Church** at 7:00 PM and let your words make an impact! **Agenda of the evening:** **Welcome and Introductions:** The Toastmaster of the Day (TMOD) often opens the meeting, who welcomes everyone and introduces the meeting's theme or agenda. The TMOD also introduces the key roles and functionaries for that session. **Prepared Speeches:** A significant portion of the meeting is dedicated to prepared speeches. Members working through various projects in the Toastmasters education program deliver speeches based on their chosen projects. Each speech is evaluated by a designated evaluator who provides feedback on strengths and areas for improvement. **Table Topics:** Table Topics is a segment where impromptu speaking skills are tested. The Table Topics Master presents a series of short, unprepared speaking challenges or questions, and members or guests are invited to come to the podium and give a brief, improvised response. **Evaluations:** Following the prepared speeches and Table Topics segment, evaluators provide constructive feedback to speakers. These evaluations focus on content, delivery, body language, and time management. The goal is to help speakers improve their speaking skills. **Reports and Functionary Roles:** The meeting may include various functionary roles, such as the Timer, Grammarian, Ah-Counter, and others, who report on their observations and contributions to the session. These roles help members improve their language and time management skills. **General Evaluator:** The General Evaluator provides an overall assessment of the meeting, highlighting what went well and offering suggestions for improvement. They may also evaluate the evaluators' performance. **Awards and Recognitions:** Toastmasters sessions often conclude with awards and recognitions, including the Best Speaker, Best Evaluator, and Best Table Topics Speaker. These awards encourage members to strive for excellence in their speaking and leadership abilities. **Closing:** The meeting concludes with closing remarks from the Toastmaster of the Day, who may express gratitude to participants and encourage them to continue their Toastmasters journey. **Networking and Socialising:** After the formal meeting, members and guests often have the opportunity to network, socialise, and discuss their experiences in a more relaxed setting. Address: Bernburger Straße 4-5, 10963 Berlin Phone: +49 160 2376546 Email: [cb.toastmasters.d95@gmail.com](mailto:cb.toastmasters.d95@gmail.com) See you there!

Liebe JUG-Mitglieder, wir möchten Euch herzlich zu unserem nächsten Stammtisch, der jeden ersten Dienstag im Monat stattfindet, einladen. Alles weitere kann im unserem Blog unter http://www.jug-berlin-brandenburg.de/ gefunden werden. Viele Grüße Sandra, Jan, Jörg und Oliver

Like your standup tight and intimate? Sneak into the back room of Mysliwska on Schlesi for a tight hour of standup by Anna Beros and friends, with local and internationally touring comedians, in English, inclusive and adult. Doors: 21:00 **Show: 21:30** End: 22:30 **Please prepurchase your tickets to reserve your seats** Limited capacity of 25 **Tickets 10€ + booking fee** via **https://www.annaberos.com/berlin** or via **https://backdoorcomedymay2025.eventbrite.de** **Remaining seats may be for sale at the door 12€ cash or card** **Performance space is non-smoking** Main bar is smoking Bar closes super late so stick around after the show **Produced and usually hosted by Anna Beros (AUS)** Anna’s a Kiwi born, Melbourne raised, Berlin based full-time independent standup comedian, YouTube host, podcaster and producer. She celebrates life’s struggles with incisive standup and playful audience interaction. Her new standup solo, High Hoe enjoyed a successful full run at the Edinburgh Fringe 2025 and her previous solos, Creampie Curious and Creampie Clarity played at numerous comedy festivals through the UK and Australia in 2023 and 2024. She tours Europe and produces and hosts 5 weekly shows in Berlin. In 2025, she opened for Jeff Arcuri at Admiralspalast, in 2024 for April Macie on US army bases in Germany and for Ian Fidance in Berlin in 2019. She hosts the comedy channel, Ersties Nonsense, has the podcast Adults ONLY Comedy Berlin and has written for Comedy Central DE. Check out what Anna's been up to: **[https://www.instagram.com/afberos/](https://www.instagram.com/afberos/)** **Venue: Mysliwska**, Schlesische Straße 35 10997 (U1, U3) One of Kreuzberg's oldest bars. Buzz in if you can't open the door. Good vibes, locals and visitors. **Guest comedians** lineup on ig stories @adultsonlycomedyberlin **https://www.instagram.com/adultsonlycomedyberlin/** \>\> comedians DM to be considered for a spot \- limited spots for experienced comedians

We are back in the c-base! Do you already run NixOS and want to talk to other people or want an introductory session with some NixOS users. Just bring your machine! Usually there are no topics, we just sit in front of our computers, talk about stuff, debug some problems or review some PRs on nixpkgs. There are drinks usually available from the c-base bar. If you can't find us. just ask around or ask in irc (#krebs on hackint)

Tuesday night, grab a beer! We've got a comedy show built for locals, tourists, and anyone flying solo. A fast, funny, feel-good evening! Tuesday night, grab a beer! We've got a comedy show built for locals, tourists, and anyone flying solo. This fast, funny, feel-good evening is hosted by Amercan comedians Tera Kilbride and Steph DePrez. Laugh, unwind, and grab a drink: it's Tuesday Boozeday [BOOK HERE PLEASE](https://www.eventbrite.com/e/tuesday-boozeday-english-stand-up-comedy-in-neukolln-sisyfass-bar-tickets-1984371110409?aff=oddtdtcreator) If you’re new to Berlin, riding solo, or looking for a bright place to warm up as the days get shorter, this is the place to be. Grab your REDUCED PRICE ticket now, or show up and pay 15 EUR at the door. Perfect for tourists and locals. Come grab a drink and laugh away the winter blues. Bring your colleagues, bring a first date, bring your mom: Laughs guaranteed. This show is hosted by two heavyweights of the Berlin scene: opera-singing comedian Steph DePrez and veteran producer Tera Kilbride. Please arrive by 7:50 to grab a seat.

Hi! Welcome to Thought Experiments in Pubs - Berlin edition, where you get to have deep conversations with people you've never met. The topic will be education. I'll post some questions that will help guide us through the topic as a comment on the day. **Location:** [Atopia Kaffeehaus, Prenzlauer Allee 187, 10405 Berlin](https://maps.app.goo.gl/Ukuup9CTrmedrB6f9) * Please consider that the locations we visit do not charge us for our booking, so in return, please make sure to show your appreciation by buying drinks or snacks. * If you're signed up but can't make the event, please cancel so someone else can take your spot * Make sure you check the right address, there is a sister pub nearby and it's not that one ☝️ **The idea:** A chance to meet and talk at a 'deeper' level, and skip the 'small talk'. **How will it work?** We will have a set of 'Thought Experiments', short, philosophical scenarios and questions, which will be discussed in groups. The conversation will flow freely, there are no strict rules, simply share and discuss your perspectives on the given topic. The thought experiments will be posted here ahead of the event. **Who should come?** Everyone! We believe that the more perspectives, the richer the conversation. This group is not about being experts in philosophy, it is about *doing* philosophy. That is, bringing our various life experiences and lenses on the world to group discussions about the human experience, the nature of reality... etc. **Do I need to bring anything?** No! Just an open, inquisitive mind. We will do 3 rounds of discussions. After the event, I would love to hear your feedback on the session. The thought experiments we will discuss are around the theme of the day. Prompts will be posted here on the day of the event. See you soon! \- Dirk *Thought Experiments in Pubs Berlin is inspired by [Thought Experiments in Pubs London](https://www.meetup.com/thought-experiments-in-pubs/), which originated in 2023 as a social experiment to get people together to connect at a deeper level. The copy on this page and original idea is derived from [Thought Experiments in Pubs London](https://www.meetup.com/thought-experiments-in-pubs/). For more info and to enquire about setting up your own group and joining the TEiP community, check out the [main TEiP website](https://www.alltogether.one/thoughtexperimentsinpubs) or contact Bonny: [bonnyastor@gmail.com](http://mailto:bonnyastor@gmail.com/)* [Buy Bonny a coffee](buymeacoffee.com/bonnyastor) as a thank you for keeping the community going and sharing the thought experiments with us. TEiP Berlin was started by Aino. Many thanks! I hope to keep it going just the same. [Photo generated with gencraft]

🚀 Workshops: The Human-Digital Synthesis **Kultur\-Technik 2026 \| Women in Big Data Berlin** AI is no longer a future concept—it is already reshaping how we work, create, and make decisions. The real question is: **how do we use it intelligently?** *Kultur-Technik 2026:* *The Human–Digital Synthesis* draws from the European idea that technology is an extension of human culture. In this interactive session, we bring together the Women in Big Data Berlin community to explore how humans and AI will collaborate, build, and evolve together. This is not a passive event— it’s a space to **learn, discuss, and create together.** The event is hosted by **Ojin AixHaus.** Ojin AixHaus is the new, collaborative community space in Berlin Mitte, where scientists, machine learning engineers, founders, creators, and AI enthusiasts come together to build and learn about the future of AI. Ojin AixHaus is free to join, open for startups in residency applications and is currently curating their 2026 events calendar. If you have a burning idea for an event, meetup or hackathon - bring your fire, they bring the space! **💡 Event Details 💡** **1\. Choose and Participate Your Workshop \(60 mins\)** Participants will get to choose and join one of two parallel tracks onsite, and co-create a “chapter” for the final showcase. 🧠 **TECH TRACK: Collective Intelligence & AI in Companies** Facilitator: Dr. Katarzyna Stoltmann Co\-Founder\, Women in Big Data Berlin \| Head of Data Science & AI How do companies truly get the best out of AI? The answer: **collective intelligence**. This session explores: * What collective intelligence means in practice * Which tasks and roles will evolve with AI * Whether AI replaces work—or creates new opportunities ✍🏼 Hands-on focus: Designing end-to-end AI solutions at scale—thinking through how humans and AI systems collaborate to deliver impact for millions of users. 🖼️ Output: A conceptual demonstration of a **“context-aware agent architecture”** 🌟 **IDENTITY TRACK: Visibility & Personal Branding in the Age of AI** Facilitator: Angeley Mullins Founder & CEO, Aetheris Ventures In a world where content and ideas can be generated at scale, how do you stay **visible, credible, and distinctive**? This session explores: * How to position your *human voice* in an AI-driven landscape * What defines authenticity and value in 2026 * How to use AI as a co-creator, not a replacement ✍🏼 Hands-on focus: Define your personal narrative, identify your unique “signal,” and build a strategic approach to visibility through guided exercises and peer exchange. 🖼️ Output: A **“Visible Self Prototype”**—your personal positioning, key content angles, and a simple plan to build credibility and presence in an AI-shaped world **2\. Grand Finale: The 2026 Showcase \(45 mins\)** We come together to share insights from each group: * Tech track presents the “Brain” (AI Agent concept) * Capabilities track presents the “Voice” (Personal Brand & Visibility Strategy in the AI era) We will have networking afterwards where you can continue sharing your ideas! 🗓 **Date: 9 April 2026** **⏰ Time: 18:00 – 21:30** **📍 Location: Ojin AixHaus \| Chausseestraße 36\, 10115 Berlin** Why do we need these workshops? Because AI is moving so fast! - and so should we. Join us to: * Understand AI beyond the hype * Learn how to use it strategically and responsibly * Connect with a community shaping the future 👉 **Choose your track. Join the conversation. Build what’s next. We look forward to seeing you next week!** Find out more here: [Ojin AixHaus Community ](https://ojin.ai/community) Follow Ojin AixHaus on socials: [Instagram](https://www.instagram.com/ojin.ai/#) [Linkedin](https://www.linkedin.com/showcase/ojin-aixhaus/) [X](https://x.com/Ojin_AI)

**Berlin's oldest comedy show where your problems become the punchlines. Real problems. Bad advice. Great comedy. Now in Friedrichshain too!** **A fast-paced showcase where comedians turn your anonymous problems into punchy on-stage therapy** Write down anything you want - from dating disasters to existential crisis & watch comedians solve it in the craziest way possible. ❗️**You stay anonymous, and we won't talk to you unless you want us to!** Perfect for introverts, overthinkers, and anyone who needs a laugh **Doors 20:00 \| Show 20:30** * Stand-up comedy + live "therapy" * Different lineup + new problems every show * A cosy, intimate vibe in Friedrichshain Every show is a fresh combo of stand-up brought by the guest comedian and advice from the host **Lena Stolby** — she's Russian, so she really knows about problems! & **THIS IS A PAID WHAT YOU CAN EVENT** We have been running solely thanks tolthe support of the audience. **Suggested contribution: €15** standard / **€12** reduced (student, unemployed)

A small NEXUS gathering built around movement and natural conversation. **Important!** We’re moving our full event schedule to our website. 👉 For all upcoming events and details, visit: [https://nexuswerkstatt.com](https://nexuswerkstatt.com)

Book a ticket [HERE](https://www.epiccomedyberlin.com/weekly-shows?utm_source=meetup&utm_medium=referral&utm_campaign=dark-thoughts-meetup-berlin-sales&utm_content=listing-main-v1&target=weekly-shows&show=dark-thoughts&city=berlin) A Berlin comedy show where Berlin's top stand up comedians take your suggestions and generate hilarious sets on the spot! ★★★★★ DOORS 10:45 PM SHOW STARTS 11 PM ★★★★★ ★★★★★ENGLISH-SPEAKING★★★★★ Finally, something Netflix can't match! The Darkest Thoughts Comedy Berlin show offers you the audience a chance to get immediate comedy based on any topic you can think of. This interactive comedy show opens with a short and funny conversation with the host about what themes interest you today. Then there is a short break where you get another drink and write down whatever you want us to improvise about in the second part related to the themes we discussed. Then a lineup of the best Berlin comedians will come in and improvise standup comedy on the spot with your notes! It's gonna be funny, interesting comedy show generated straight from your thoughts! This is a donation-based show (Recommended donation 10-15 Euro) so entry is free but we recommend you reserve your seat as seating is limited (reservations valid until 15 minutes before the show starts.) So reserve now and let the Darkest Thoughts Comedy show pluck some funny directly from your mind!

Book a ticket [HERE](https://www.epiccomedyberlin.com/weekly-shows?utm_source=meetup&utm_medium=referral&utm_campaign=epic-comedy-showcase-meetup-berlin-sales&utm_content=listing-main-v1&target=weekly-shows&show=epic-comedy-showcase&city=berlin) A comedy extravaganza that showcases the very best veteran and up-and-coming comedic talent in Berlin. DOORS 8:00 PM, SHOW STARTS 9:00 PM BAR IS CASH ONLY Join us for a night of Epic Comedy as we bring you the cream of the crop when it comes to Berlin's established and up-and-coming comedians. Our code is quality. That means no first-timers, no hobbyists, just tried and tested comedians bringing you tight sets of original comedy. We pick our comics based solely on their ability to take you from the sprawling plains of average humour and usher you through the gates of next-level hilarity. This is a Pay-What-You Want show. This means you reserve a ticket and don't pay anything upfront. You pay what you think the show is worth at the end. We are confident in our ability to deliver a lineup and show that is worth at least 15-20 Euro and we are willing to put our money where our mouth is. Can we make it any fairer than that? Still, if you'd rather pay upfront, we also have the option of purchasing a table seat which offers you somewhere to stack your drinks and is located farther back from the stage. The call has gone out, the comics are gathering. The only question is, are you in the mood for something Epic?! Join us for the best Friday comedy live event in Berlin! Book now! PLEASE NOTE: We are unable to offer refunds within 24 hours of showtime

**BitDevs Bitcoin Socratic Seminar Berlin @ c-base Raumstation** Join us for our monthly interactive **[Bitcoin Socratic Seminar](https://bitdevs.berlin)** in Berlin! We’ll start with pizza and beer (sponsored by [Ordimint.com](https://ordimint.com)), followed by deep-dive discussions on the most interesting *technical* developments in Bitcoin from the past month. Participation by everyone is highly encouraged! Our goal is to foster lively discussion, knowledge sharing, and debate. In the weeks leading up to the event, participants gather topics such as: * New research papers * New BIPs and BOLTs * Network statistics * Technical blog posts * Mailing list and Delving Bitcoin threads * Pull requests and updates from key repos (Bitcoin Core, LND, Core Lightning, Eclair, BDK, rust-bitcoin, LDK, Electrum, …) Each topic is briefly introduced by our moderators and then discussed before moving on. The full list of links will be published at [bitdevs.berlin](https://bitdevs.berlin) 1–2 days before the event — please review them in advance to get the most out of the discussion. **Important details:** * This event is highly technical — best suited for those with a solid grasp of Bitcoin internals. Curious newcomers are always very welcome, but expect in-depth conversations (see the former topics at [bitdevs.berlin](https://bitdevs.berlin)). * Chatham House Rule applies: you may share what was discussed, but not who said it. No livestream, no photos, no recordings. * The evening begins with food and networking; people often stay after the seminar to keep talking. **Co-hosted by:** * [Felix](https://x.com/FelixWeis) * [Freerk](https://x.com/freerko) * [Fabian](https://x.com/fjahr) For background on the idea of BitDevs Socratic Seminars, see [this article](https://bitcoinmagazine.com/articles/op-ed-want-to-learn-about-bitcoin-try-a-local-socratic-seminar).

**Instinct #20** \| Workshop with ***Lo Höckner*** for **LGBTQIA+** Free with **[registration](https://wearevillage.org/en/shop/village-instinct-workshop/w15-2026)** **Beyond Overwhelm** is a somatic, collective workshop that links embodied practice to social change. Together, participants explore how capitalist working cultures shape our nervous systems toward chronic overwhelm and isolation—and how we can cultivate embodied resistance. **Beyond Overwhelm** relates to embodied learning circles with clear links to social change, aiming to practice together and empower their members to gain agency and take action. This workshop deliberately addresses the body and practicing together as a collective political practice, accessing the collective wisdom of a group. In this workshop, we are going to explore how working cultures under capitalism are creating a sense of overwhelm in our nervous systems, and furthermore, how we can cultivate embodied resistance. The session offers tools for coming out of overwhelm as a foundation for building relational strategies and counteracting individualization; exploring why this is necessary for political agency while refraiming activism. Through body-based practices, collective inquiry and imagination, this workshop gives space to explore the participant’s lived environment and how practices of connection, care and existing otherwise could be brought into it 🔵 **Beyond Overwhelm** ist ein somatischer, kollektiver Workshop, der verkörperte Praxis mit sozialem Wandel verbindet. Gemeinsam erkunden die Teilnehmenden, wie kapitalistische Arbeitskulturen unsere Nervensysteme in Richtung chronischer Überforderung und Isolation prägen – und wie wir verkörperten Widerstand kultivieren können. **Beyond Overwhelm** ist ein somatischer, kollektiver Workshop, der Körperarbeit mit sozialem Wandel verbindet. Wir üben gemeinsam, um wieder mehr Ruhe, Klarheit und Handlungsspielraum zu gewinnen – als Basis, um gemeinsam statt allein mit Druck und Stress umzugehen. Im Workshop schauen wir darauf, wie kapitalistische Arbeitskulturen Überforderung und Daueranspannung fördern – und was uns hilft, dem etwas entgegenzusetzen. Du bekommst praktische Tools, um aus dem Overwhelm rauszukommen, in Kontakt zu bleiben und Vereinzelung zu durchbrechen. Wir sprechen auch darüber, warum das für langfristiges Engagement und politische Handlungsfähigkeit wichtig ist. Mit körperbasierten Übungen, Austausch und einfachen Reflexionsformaten übertragen wir das auf deinen Alltag: Was bringt dich aus dem Gleichgewicht – und was stärkt dich? Und wie können Verbindung, Fürsorge und gegenseitige Unterstützung darin mehr Platz bekommen?

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!

We connect you with up to 30 Men or Women tennis partners close to your PLAYING REGION and skill level. This program is less competitive, no champions crowned, no league standings just dedicated tennis partners who want to meet up with you on the courts. Players will meet up to play a tennis match or just to hit around. Just go through the [Join Page](https://www.tenniscolumbus.com/partner-program) to enter this program. [https://www.tenniscolumbus.com/partner-program](https://www.tenniscolumbus.com/partner-program)

**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** GitHub Copilot is powerful, but what if you could scale from a solo AI assistant to an entire team of specialized agents working in parallel? This session introduces Squad: an open-source framework for multi-agent orchestration that lets you define teams of AI agents with specific roles, responsibilities, and expertise. We'll progress from Copilot basics to the Copilot CLI, explore how Agents add autonomy, and see how Instructions and Skills let you customize agent behavior. Then, the climax: a live demo where a Squad team of 3 agents (Lead, Developer, Tester) stands up and builds a working application in real-time, showcasing true multi-agent collaboration. Whether you're new to AI or exploring how to scale your use of Copilot, this session will show you what's possible when agents work as a team. **YouTube Link** TBD

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!

AI is changing how art is made. But when does it stop being your work and start being the machine’s? This month we're going to be doing a panel with with digital image, music, and written word artists, talking about at what point, while using AI in the creation process, does the work become not the artist creation? We encourage audience participation during this event that will be moderated by Chris Slee. Whether you’re deep in the field or just getting curious, come connect with others building and exploring AI in Columbus. Sponsored by [Transform Labs](https://www.transformlabs.com/services)

How to be a Better Communicator Communication is everything in life You are only as successful as your ability to communicate. \- What if you could confidently talk to anyone? \- What if you had the ability to calmly control every conversation? \- What if you could close that sale\, ask for that date\, make new friends\, repair problematic relationships\, get that raise\, or effortlessly express any idea with confidence? You can! The secret to success relies on your ability or inability to effectively communicate. Attend a free seminar and gain a better ability to communicate. Hosted by the Church of Scientology of Central Ohio 1266 Dublin Road, Columbus, OH 43215 For more information, contact Rhiannon, the Event Host at 614-221-5024

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