Futurology

The longest day of the year is comming and let's another Kotlin meetup. This time we geather at N26! **⚠️⚠️⚠️ Due to a venue policy please submit the following form for additional details. Without it, you won't be allowed inside the venue:** https://forms.gle/XjqVXkD3FARCM6jA8 **Line-Up:** 👉 **TestBalloon: Kotlin testing is easier (and more fun) than you think** *by Oliver Okrongli* You want an easier way to write tests? Parameterize tests in plain Kotlin? Reuse a series of tests? Easily extend own your test setup? Have first-class support on all platforms? All without struggling with a huge framework API? TestBalloon is a new test framework that brings the power of Kotlin to your test setup. With a small-surface API, a hierarchical test structure and an extensible DSL, TestBalloon makes Kotlin testing easy, even at scale. Oliver, the author of TestBalloon, will show testing patterns and strategies and lots of practical examples, ranging from simple unit tests with less boilerplate to advanced testing with coroutines and generated data. This talk is based on insights first presented at KotlinConf 2026 in Munich. At the end of this talk, you’ll be able to firmly the answer the question: "How can I master Kotlin testing with ease, and make my team release with joy and confidence, every time?" 👉 **One Topic to Rule 'Em All** *by Yonatan Karp-Rudin* Kafka delivered every event exactly once, in order, and lost nothing. So what broke? This talk follows that question into the gap most event-driven systems leave open: what actually guarantees the order your domain depends on, and what quietly doesn't. We start from a real log line, find the crack in an architecture that looks clean and ships fast, and rule out the fix everyone reaches for first. The cure turns out to be one sentence of domain thinking plus one line of config, though the Schema Registry will fight you on the way there. A live demo runs the bug and the fix back to back: same load, same hero, one change. If you build with Kafka, you have probably shipped a version of this bug. You will leave able to spot it and fix it before it pages someone. 👉 **TBD** **Speaker Bios:** 🗣 Oliver Okrongli Oliver has been shaping and creating software from backend to frontends. He is the author of TestBalloon, a next-generation Kotlin test framework. Before, he has helped to maintain Kotest, and contributed to several libraries of the Kotlin ecosystem as well as the Kotlin compiler. Can be found on GitHub (OliverO2) and the kotlinlang Slack (Oliver O). When not developing, he is most probably in deep talks, dancing, snowboarding or F18 catamaran sailing whenever he gets a chance. 🗣 Yonatan Karp-Rudin Yonatan Karp-Rudin is a Staff Engineer at Billie, building event-driven systems in Kotlin and Spring Boot. Off the clock, he plays with AI agents and builds random tooling, trying to hand off as much of his own workflow to a machine as he can. The rest of the time he's brewing mead or deep in a video game. **🗣 TBD**

**[4 WEEKS CLASS ON FIGURE DRAWING](https://berlinschoolofdrawing.weebly.com/figureclass.html)** **[for beginners](https://berlinschoolofdrawing.weebly.com/figureclass.html)** THURSDAYS 5 to 7 pm JUNE 18TH TO JULY 9TH 135€ ALL INCLUDED 35€ DROP IN [BOOK IT HERE!](https://berlinschoolofdrawing.weebly.com/figureclass.html) **A 4 weeks class for beginners.** **The goal of the class is to learn basics of figure drawing such has volume, lines, weight, shading.** **We'll focus on proportions and forms, introducing methods and tools to simplify the human figure.** **We will work on quick and long poses, standing and sitting poses in order to understand foreshortening.** **The overall goal will be to be able to draw models with shading and volume.** **We will mainly work with pencils**

Please reserve your spot by registering on the below link : https://www.eventbrite.com/e/join-biggest-community-investors-founders-berlin-online-tickets-1988380688164?aff=meetup QUESTIONS ? Pls Reach out to; Rose - +971528033410 ( WhatsApp Only)

**DRAWING AND PAINTING CLASS** **on VARIOUS TECHNIQUES** ***SUITABLE FOR BEGINNERS*** with Travis Hendrix [BOOK IT HERE](https://berlinschoolofdrawing.weebly.com/booking---contact--venue.html) Weekly on Thursdays from 7.30 to 9.30 p.m. \- to be joined anytime\! FROM THU MAY 7TH to JULY 23rd 2026 Join anytime! *Scroll down for detailed program* Pricing options: \- 4 entrances/€110 \- to be used within 7 weeks from purchasing \- Special 3 MONTHS booking: €290 \- one time drop in: 36€ This is an ongoing class from MAY to JULY 2026 The subscription to the class can be done monthly ( the 4 entrances don't have to be used in a row ) Plus: SPECIAL Price for booking 3 MONTHS to be followed in a row Each individual will be guided separately so any level is welcome! **ALL MATERIAL WILL BE PROVIDED by us:** however you are more than welcome to bring your own material and try things out. The aim of the class is to target a big range of people who know nothing about drawing, to the ones who have some experience already and want to develop ideas, techniques etc. therefore it will be suitable for complete beginners or intermediates. We will sometimes have models, sometimes work on still life, sometimes on botany, sometimes we will focus rather on techniques and some other times it ́s more liberated and free. The goal of the class is to learn how to draw, and how to find your own style with time. **DETAILED PROGRAM:** MAY 7th to JULY 30th 2026 May 7: Introduction to drawing with pencil forms, volume, perspective and shading. May 14: Drawing with pen and ink still life, focusing on positive and negative space and silhouette drawing. May 21: life drawing session with model, elaborating on pencil and charcoal and pen skills, learning about figure drawing, and applying the previous sessions into body forms and shades May 28: Drawing the face with pencils June 4: Intro to Acrylics. Materials and techniques. June 11: Colour theory applied through all painting mediums. June 18: Abstract surrealism in acrylics. How to start a painting against the fear of the blank. June 25: Image transfer with acrylic mediums and mixed media. July 2: Intro to watercolour and gouache July 9: Botanical art (drawing and painting). July 16: Introduction to Indian(Chinese) ink, learning how to work with shadows, layers and lines July23: Mixed media painting July 30: life drawing with Model, material choice up-to students ***

-DROP IN - *(English below)* Lindy Hop \| Swing Dance Unterricht \- * *wenn es warm ist\, draußen \| outdoors\, when warm* * *drinnen, wenn es kalt ist / inside, if cold* Klassen am Donnerstag Abend 18:15 Uhr - Starter "Take The A Train" \* keine Anmeldung nötig \* Start jederzeit & ohne Tanzerpartner\*IN möglich 19:30 Uhr OPEN CLASS (Improver - Experienced) \* keine Anmeldung nötig \* Teilnahme jederzeit & ohne Tanzerpartner\*IN möglich [20:30 Red RHYTHM - Social Dance w/ LIVE MUSIK & DJ](https://www.swingpatrolberlin.com/red-rhythm---swing-dance-night.html) Für mehr Informationen & Kosten bitte hier schauen: [SWING PATROL KULTURBRAUEREI](https://www.swingpatrolberlin.com/sp-kulte.html) \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- classes every Thursday evening 18:15 Starter "Take The A Train" \* no registration needed \* no partner needed \* start anytime 19:30 OPEN CLASS (IMPROVER - EXPERIENCED) \* no registration needed \* no partner needed [20:30 Social Dance w/ LIVE MUSIK & DJ](https://www.swingpatrolberlin.com/red-rhythm---swing-dance-night.html) All information here: [SWING PATROL KULTURBRAUEREI](https://www.swingpatrolberlin.com/sp-kulte.html)

We are happy to invite you to our next iOS meetup. This time we cooperate with the amazing 42 Berlin to share the knowledge and experience in iOS development. 18:00 Doors open 18:30 Welcome on campus **18:45** **— Sebastian Hagedorn, director of Engineering at Clue, presents "The Sensitive App".** Is your app really working, or just not crashing? “The Sensitive App” reports subtle bugs regardless of origin, and validates your assumptions in production so you don’t have to resort to guessing or praying. Learn how to turn your app into the first line of defense for your entire system’s health! **19:45** **— Dmitry Kurkin, lead Mobile Engineer at SuperNext, presents "Lessons that iOS Native Project could learn from ReactNative in agentic development".** We'll inspect the components of the React Native engine that provide faster feedback and boost agentic iterations.

At OpenSpace Networthing entrepreneurs from diverse disciplines, industries and nations meet to collaboratively develop solutions for challenges presented by participants. This month we will dive deeper into building digital products with Vibe Coding & AI with Varun Jain. We are building a networking-App: The "Tinder for Entrepreneurs" If you want to offer a workshop or present a topic for our members, write an email to alejandro.wagner@mlp.de Entrance is free! Bring in your expertise instead.

Welcome! This meetup is for neurodivergent people (ADHD, autism, dyslexia, dyspraxia, OCD, etc.) who are learning German and want a low-pressure, structured space to practice speaking. **Logistics:** *📍Location: Kaffeekreis [https://maps.app.goo.gl/LR2yhChFpEkVB1HD9](https://maps.app.goo.gl/LR2yhChFpEkVB1HD9) - **Please order food or drink from the cafe.** *🎧 Bring sensory management tools (headphones, stim toys, sunglasses, etc) - (Optional) A notebook if you like writing things down **How it works:** 🗣️ **Level-based small groups** When we start, we’ll quickly split into groups based on your self-assessed level (A1, A2, B1, B2, C1, C2). → **Max. 4 people per group** to keep sensory load low and speaking time fair. ⏲️ **Organizers group check** The organizers will come around from time to time to each group and ask if you want to stay in your current group or move to a different level—either higher or lower— or if you’d like to talk in different group. We’ll help you move. No pressure. No questions asked. 🚫 No pressure to speak every round. Just listening is fine. 🃏 **Conversation cards & prompts** Each group gets a set of prompt cards (simple questions, situational tasks, or grammar challenges appropriate for that level). You can follow the cards or go off-script — whatever feels right that moment. Let’s practice German in a way that actually works for our brains. ✨

**This event is taking place online.** You know AI is shifting how work happens. But where does it fit in *your* team? Maybe you're using it somewhere and not sure it's working. Maybe you've held back because you're not confident. Maybe you can't agree on when to use it. Welcome to an honest decision-making conversation. 17:00 — Intro 17:05 — When do you use AI, when not? (In your teams, right now) What's missing to decide well together? 17:15 — Simple frameworks for making these choices 17:30 — Examples and take-aways 17:45 — Questions and wrap-up This is the second session in our series. We'll test some decision-making frameworks together and learn what actually helps your team choose clearly, because the best decisions come in good company. Facilitator: Anca Trif Language: English Capacity: 10 attendees **Join Here**: https://meet.google.com/gmp-ywbd-qqm

Join us for a relaxed 3-hour coloured pencil workshop focused on learning through play, experimentation, and observation. No pressure, no perfectionism, just an opportunity to explore! ### ***Included*** **\- All materials are included** in the workshop price. **\- A** **small take-home handout** summarizing the techniques and concepts covered during the session so you can continue practicing afterwards. ### ***Important*** **The participation fee will be refunded in full**, if you cancel 7 days prior the workshop. After that, it will be a **50% refund.** No-shows **will not** be refunded. Please let me know if you cannot make it! ### ***Contents*** We’ll start with a series of short exercises to build confidence with: * layering and blending * creating texture * using light and shadow * colour mixing * making drawings feel more alive and dimensional The final part of the workshop will be a longer observational drawing session where we’ll draw real-life objects (likely fruit!) and apply the techniques we explored earlier together. ### ***Detailed schedule*** **14:00 – 14:20** Welcome, materials overview & warm-up exercises **14:20 – 15:50** Layering, blending & colour techniques **10-min BREAK** **15:00 – 15:30** Texture studies (leaves, surfaces, etc.) **15:30 – 15:50** Volume and shape **10-min BREAK** **16:00 – 16:50** Guided real-life drawing session **16:50 – 17:00** Sharing, questions & wrap-up

Come for a Sunday afternoon of watercolor painting in the park. This is not a formal workshop. It's a relaxed community gathering for anyone who enjoys painting, sketching, creativity, or simply spending a few quiet hours outdoors. Bring your watercolor supplies, a sketchbook, a blanket, and something to drink. If you're completely new to watercolor, you're still very welcome. We'll spend some time painting together, sharing ideas, and enjoying a slower pace for a couple of hours. What to bring: • Watercolor paints • Brushes • Watercolor paper or sketchbook • Water container • A blanket or something comfortable to sit on • Snacks or drinks if you'd like This event is free. The exact meeting point will be shared with attendees before the event. Looking forward to painting together

Welcome to Sunday Tech Coffee. This is a **networking** event for those in the tech industry in Berlin. We are usually inside and to the right. Ask the barista/bartender if you can't find us.

The Creative Code Jam is a monthly gathering of artists, makers, designers, illustrators, coders, musicians, performers, learners and anyone interested in the use of computing skills for artistic expression. The event is free and open to all, regardless of age, origin, gender or experience. The jam is an opportunity to meet likeminded people and get creative together in a relaxed and safe environment. Beginners and first-timers should feel especially welcome! WHAT SHOULD I EXPECT? **Bring a laptop** and/or anything you’d like to work on, whether it’s a personal project, an experiment, or a skill you want to learn. You can come with friends or meet new people here. There’s no set agenda: some people code, some sketch ideas, some collaborate, and others just chat and get inspired. SCHEDULE Doors open at noon, then we’ll have quick introductions so everyone can share what they’re planning to work on. Note: arriving on time is the best way to hear what others are up to ;) Around 6 pm, we gather to share what we’ve worked on during the day. BEGINNERS WELCOME! If you’re new to creative coding, we'll be happy to help you get started, and you can find beginner-friendly resources at [creativecode.berlin/learn](http://creativecode.berlin/learn). THIS IS YOUR SPACE We do our best to create a welcoming environment for all people regardless of race, ethnicity, color, religion, gender identity, sexual orientation, national origin, age, disability, or genetics. People from group generally underrepresented in open-source, art, and technology fields are warmly encouraged to come by. And if you know someone who might enjoy this meetup but isn’t sure it’s for them, let them know they’ll be welcome! SAFE SPACE POLICY We support the Berlin Code of Conduct: https://berlincodeofconduct.org/ Please make sure you agree with its content. ABOUT MotionLab.Berlin MotionLab.Berlin is Germany’s premier Innovation Hub & Makerspace – an ecosystem for Hardtech, art, creativity, and entrepreneurship. They are an international community with access to state-of-the-art machinery, prototyping machines, coworking spaces, offices, and production facilities. More info: https://motionlab.berlin/ ACCESSIBILITY MotionLab is located on the ground floor, with bathrooms on that same level, although unfortunately they are too small for wheelchairs. FOOD MotionLab has drinks and snacks for sale. Bio food can be found on LPG at Bouchéstr (\~200m). Their cantine has vegan, vegetarian and other food options until 8pm. DO I NEED TO SPEAK GERMAN? We speak mostly English so international guests are more than welcome! Our team also speaks French, Turkish, Italian, Spanish, Dutch, Finnish and German... though language availability may vary depending on which organizers are present :) CONTACT Raphaël de Courville team@creativecode.berlin +49 176 700 70572 or get in touch via [creativecode.berlin](https://creativecode.berlin/)

[Profs and Pints Northern Virginia](https://www.profsandpints.com/washingtondc) presents: **“Can Artificial Intelligence ‘See’?”** A look at how humans and artificial intelligence systems interpret the visual world in fundamentally different ways, with Arryn Robbins, assistant professor of psychology at the University of Richmond and cognitive scientist who researches visual attention, perception, and category learning. [Advance tickets: $13.50 plus sales tax and processing fees. Available at [https://events.ticketleap.com/tickets/profsandpints/nv-can-AI-see](https://events.ticketleap.com/tickets/profsandpints/nv-can-AI-see) .] Artificial intelligence can now identify faces, categorize objects, describe scenes, and outperform humans on certain visual tasks. But does AI actually “see” the world the way that people do? Or does it arrive at correct answers using representations that differ markedly from human perception? Join Arryn Robbins of the University of Richmond for a fascinating exploration of how humans and AI construct meaning from visual information and a look at comparisons between human perception and AI that reveal just how dynamic and context-dependent our own visual systems really are. Dr. Robbins, who previously has given excellent Profs and Pints talks on flaws and biases in human visual perception, will draw from research in cognitive science, visual perception, and AI vision systems. She’ll explain how human perception is not merely a simple recording of the world, but an active process shaped by expectations, context, goals, and recent experience. You’ll learn how humans form flexible mental representations that allow us to recognize objects across changing environments and conditions, and why those representations continuously adapt as we interact with the world. Many AI systems, by contrast, learn visual categories through statistical patterns in data. They can produce impressive results, but sometimes they also produce strange and unexpected failures, and sometimes they classify images in ways that seem strange to us. Dr. Robbins will discuss what these differences reveal about the nature of perception itself, and why the mismatch between human and AI representations matters for technologies like self-driving cars, medical imaging, facial recognition, and automated surveillance. Important for anyone trying to understand the rapidly growing role of AI in daily life, this talk will explore one of the biggest questions in cognitive science and artificial intelligence: What does it actually mean to “see” and understand the world? (Doors: $17, or $15 with a student ID. Listed time is for doors. The talk starts 30 minutes later.) Image: “Eye Farm” by Nevit Dilmen (Wikimedia Commons).

When the Blackstaff of Waterdeep discovers a wrinkle in the weave of magic threatening to erase the city from existence, it will be up to the party to travel back in time to save the fledgling city from an invasion of vicious trolls. **This event is hosted using the Dungeons and Dragons 5th edition Adventurers League rules. It is a Tier 1 game suitable for players of all experience levels.** **Becoming a member in our Discord and accepting our Code of Conduct is required for play at all of our events. You must join and accept the Discord rules before signing up to any MeetUp events. These rules include but are not limited to:** * **Assigning your name and pronouns as your server nickname;** * **Confirming your age as 18 or older;** * **Participating in a respectful environment for both our AL DMs and your fellow players.** **If you do not join the Discord and accept these rules prior to signing up for an event, you may be removed from the MeetUp event or be required to join the Discord and agree to the Code of Conduct at the game table prior to playing.** \*\**[Join us on Discord!](https://discord.gg/mG24YCk7wj) Attending this event indicates that you agree to follow NOVA Adventurer’s League’s Code of Conduct, which can be found in the #code-of-conduct channel on our Discord.*

Important: Register on [AICamp website](https://www.aicamp.ai/event/eventdetails/W2026061814) is required for admission. **Description:** Welcome to the AI meetup in Washington DC. Join us for deep dive tech talks on AI, GenAI, LLMs and Agents, hands-on experiences on code labs, workshops, and networking with speakers and fellow developers. **Agenda:** \* 5:30pm\~6:00pm: Checkin, Food/drink and networking \* 6:00pm\~8:00pm: Tech talks and Q&A \* 8:00pm: Happy Hour at Courthouse Social (cross the street) **Tech Talk: Secure Developer Environments in the Age of AI Agents** **Speaker:** Patrick Brown (Coder) **Abstract:** Federal engineering teams are under pressure to ship faster while meeting some of the most demanding security and compliance requirements in the world. In this talk, Patrick Brown of Coder explores how cloud development environments (CDEs) give agencies a foundation to accelerate software delivery without sacrificing control — and why that foundation matters even more as AI-powered coding agents enter the workflow. He'll cover how CDEs keep source code off endpoints, enforce zero-trust access patterns, and provide the consistent, ephemeral infrastructure that both human developers and AI agents need to operate safely at scale. **Speakers:** Stay tuned as we are updating speakers and schedules. If you have a keen interest in speaking to our community, we invite you to submit topics for consideration: [Submit Topics](https://forms.gle/JkMt91CZRtoJBSFUA) **Sponsors:** We are actively seeking sponsors to support AI developers community. Whether it is by offering venue spaces, providing food, or cash sponsorship. Sponsors will not only speak at the meetups, receive prominent recognition, but also gain exposure to our extensive membership base of 5,000+ AI developers in D.C and 500K+ worldwide.

The evening begins with a ribbon-cutting ceremony to mark our American debut, followed by a reception bringing together industry leaders, executives, and elected officials from across the region. You'll be among the first to meet our leadership team, hear how Diconium — a Volkswagen company — is bringing the engineering rigor of one of the world's most demanding manufacturers to the US market, and explore where our work might intersect with yours. The evening continues with networking, hospitality, and a few moments we're saving for the night itself. This is a milestone we'll mark only once — it would be our honor to have you there. Warm Regards, Diconium, *a Volkswagen company* Supporting Partners: Greater Reston Chamber of Commerce VW Group of America Porsche Consulting

Greetings Agents. The clockwork automatons that guard the Svirfneblin town of Little Lockford have attacked the very residents they were meant to keep safe, forcing a town-wide evacuation. At the heart of the matter is Security Overseer Tixie Tockworth, a tinkerer who has turned malicious. [Join our Discord!](https://discord.gg/mG24YCk7wj) Attending this event indicates that you agree to follow NOVA Adventurer’s League’s Code of Conduct, which can be found in the #code-of-conduct channel on our Discord

踏入《广论》研讨班，对许多人来说是开启生命转变的契机。或许您也会好奇：在繁忙的工作与生活之余，投入时间研读佛典，究竟能为人生带来哪些实质的成长与收获？ 《广论》研讨班秉持着日常老和尚以心灵提升、圆满生命的目标，提供大众身、心、灵健康的学习环境与循序渐进的佛法课程。学员通过听师父的录音带和研讨交流，对佛法建立整体认识，全面的理解，同时学习如何将佛法智慧运用于生活中，打造幸福人生。 **《菩提道次第广论》简介** 佛法大全，给与您心灵滋养，人生方向 次第井然，引领您脚踏实地，步步向上 心智科学，帮助您认识自己，了解他人 幸福教育，教会您正确取舍，离苦得乐 生命教育，陪伴您创造希望，走向美好