Quantitative Finance

**Details** Calling all Arlington VA Real Estate Investors, Agents and Professionals! Join the most unique real estate investor club, education, networking and mastermind event in the US! The Cash-Flow Breakfast Club is nationwide but was founded right here in your back yard! **This is a 12 part education series with new topics every month. This event is session 2 of 12!** **This event is free but has very limited seating and we are limited to the first 100 to RSVP! Join us and become a founding member of this amazing community!** Very limited seating. In-person only. Make sure to RSVP today to reserve your spot. When: **June 17, 2026 @ 5:45pm-8:30pm EST** Where: **4720A Langston Blvd. Arlington, VA 22207 (Samson Properties)** **Important Note:** * Street parking is available. * Doors lock at 6:00 PM. * If you arrive late and find the doors locked, please call: * Shawn Barsness: 828-506-0487 * Ana Bialek: 703-499-0535 * We will also place signs outside to guide you if the doors are locked. The Cash-Flow Breakfast Club is NOT just a meet up. It’s the most unique Real Estate Investor Community of Mentors, Coaches & Masterminds. A community of growth oriented, abundance mindset, go-giver individuals with a BARE MINIMUM commitment to become financially free through real estate investing. We focus on providing education and building networks to help every member solve their cash-flow freedom equation, so they can have the time-freedom needed to follow their passions, make a lasting impact and even change the world! The unique format of this event, which consists of high-level education, gamified networking, mastermind breakout sessions, case studies, group deal analysis, market deep dives, and peer-to-peer coaching facilitation makes this the most impactful local real estate investor group a real estate investor can be a part of. The foundation of the group is built around the belief that everyone in the room has the potential to change the world… however most of us never have the time, energy or financial situation to even dare to dream big enough. Most of us have passions that will never be followed, amazing businesses or ideas that will never be pursued… unless we can solve the Cash-Flow Freedom Equation, which ultimately leads to Time-Freedom. Once that happens it is usually much easier for us to think bigger, dream bigger, be bigger. · 🤯 Learn more about the Cash-Flow Breakfast Club [HERE](https://cashflowbreakfastclub.com/) · 🥇 Get in the VIP List to be notified about the next event in your area [HERE](https://the.cashflowbreakfastclub.com/VIP) · 🤙🏼 Learn more about Launching your own Cash-Flow Breakfast Club Location [HERE](https://cashflowbreakfastclub.com/launch-your-own-club/) · 🤝🏼 Learn more about becoming an Affiliate-Sponsor at one of our club locations [HERE](https://cashflowbreakfastclub.com/affiliate-sponsors/) · 📷 View photos and videos of some of our recent events [HERE](https://cashflowbreakfastclub.com/about-the-cash-flow-breakfast-club/) · 😎 Looking to represent? Browse Cash-Flow Breakfast Club apparel and fly swag [HERE](https://cashflowbreakfastclub.com/shop/)

👉 Enroll at **[www.worklifespanish.com/conversational-spanish-clubs.html](http://www.worklifespanish.com/conversational-spanish-clubs.html)** Our ***Beginner Banter Club*** meets in person and is available to all Spanish learners at the A1-B1 levels who want to start speaking and build confidence. Each week, we’ll explore vocabulary and cultural themes like holidays, food, and daily life in the Spanish-speaking world. **​**Location: Falls Church Day: Wednesdays, 4.30pm - 5.30pm ET ​Price: $27.50 / session or FREE with monthly credits 🎁 **FREE Trial Event Available!** Use code **FREECLUB** when you sign up. 👉 Enroll at **[https://www.worklifespanish.com/conversational-spanish-clubs.html](https://www.worklifespanish.com/conversational-spanish-clubs.html)**

[Book Your Classes by Clicking This Link! ](https://crowndancestudio.com/group-classes/) Mid-week is for the experts with **Level 3 Bachata (7:45 PM)** and **Level 3 Salsa (8:30 PM),** followed by a **Social Dance Party at 9:15 PM.** These advanced classes challenge experienced dancers with intricate footwork and styling, emphasizing the joy of high-level performance. **The evening costs $25 for the classes and social**, providing an inclusive space where advanced students can sharpen their craft and immediately practice their moves with peers. 7:45 Bachata (Level 3) 8:45 Salsa (Level 3) $18 for 1 Class $22 for 1 Class + Social $25 for 2 Classes + Social $10 for Social Only

Doubles Volleyball - Competitive BB-A level @Bluemont Park Let's get together to play some fun A level Doubles games at Bluemont. Format: Doubles COST: FREE Court Type: Outdoor grass Minimum Skill Requirements: BB-A level (click [here](https://docs.google.com/document/u/2/d/1PojSi4qdlRsv1msCHhvpQ43iDc4FfzQwpWCc3kafVMY/mobilebasic) for details) Attention: 1. This event is not always on a first come, first served basis. Those who can bring a net and ball, may get priority over others on the waitlist. 1. Since skill levels are self-reported, some attendees may not meet the expected level in reality, so we encourage you to choose a partner you can enjoy the game with, and since this is a competitive event, it is okay if you make a strong team and win all the games. 1. Since people arrive at different times, each group of 1. Players will set up and claim a net as they arrive, and may continue playing without rotating until all nets are set. ——— Smiley Social documents: [Group Rules](https://docs.google.com/document/u/2/d/1HrG35p_0M08leRvCp8XWG3CMkr_GL928XFabl5T6Dvg/mobilebasic) [Liability Waiver](https://docs.google.com/document/u/2/d/1W2mq-7m99lmvd7gdWYaSUFtvVg4UGnzV6koafAbHmco/mobilebasic) [Volleyball Levels](https://docs.google.com/document/u/2/d/1PojSi4qdlRsv1msCHhvpQ43iDc4FfzQwpWCc3kafVMY/mobilebasic)

meet at Tysons Corner Mall Upper Level Food Court

**Just discounted: $500 off!** **Register at** [https://www.lizardbrain.com/thinkwithink](https://www.lizardbrain.com/thinkwithink) Think With Ink™ is Lizard Brain’s 3-day premiere graphic facilitation workshop. This is an intensive workshop that covers the essentials of using visuals to facilitate a group process. The workshop covers three areas: * Technique: Markers, paper handling, color use, lettering, drawing, forms, levels of information, listening for synthesis. * Models, Methods, and Tools: visual energizers and icebreakers, meeting principles and ground rules, and visual tools for brainstorming ideas, comparing ideas, and collaboratively deciding the way forward. * Experiential Practice: hands-on practice designing and leading facilitated modalities. This workshop is meant for: * The facilitator who wants to build a repertoire of visual tools, * The graphic recorder or sketchnoter who wants to expand into graphic facilitation, * The team member who wants to bring visual, participatory methods to the team, * The consultant and coach who wants to help clients think through problems in a visual manner, or * The visual thinker, the whiteboard salesman, the data visualizer, or anyone that sits in the intersection of visuals and helping others solve problems. Each participant will receive: * Textbook * Sketchbook and sketchnoting materials * Handouts summarizing key practices * Set of markers * Roll of twenty-five-yard paper * This hands-on, practice-driven workshop will give you everything you need to graphically facilitate groups through the toughest challenges. **The next in-person running is in Reston, Virginia, June 17-19, 2026.** Click the link below to find out more! [https://www.lizardbrain.com/thinkwithink](https://www.lizardbrain.com/thinkwithink) **FAQs** * *Will this teach me to graphic record?* * Graphic recording is large-scale visual notetaking for groups. Graphic facilitation is using visuals to help move a group through a process. Although you can apply many of the graphic facilitation methods in Think With Ink to graphic recording, we will focus on visual group processes rather than on the aesthetic side of graphic recording. * * *Will this teach me to graphic facilitate?* * Yes! * * *What can I bring into the event?* * Please bring questions, comments, stories, favorite tools, examples, experiences, and a willingness to learn and share with others! * * *How can I contact the organizer with any questions?* * For any questions, please contact brian@lizardbrain.com.

Come learn how money really works. We’ll cover how to grow it, protect it, get out of debt, and use smart retirement and infinite banking strategies to build long-term security.

Title: What Is Progress? Knowledge Aggregation, Living Textbooks, and the Automation of Scientific Discovery Date: June 20 2026 Noon - 14:00 EDT Summary: Our collective knowledge infrastructure — the textbooks, professional training resources, and literature syntheses that define what professionals across disciplines believe to be true — is quietly accruing a structural liability. Compounded confirmation bias, stacked citation-by-citation into the foundations of formal knowledge, means that breakthroughs can take decades to reach the classrooms, clinical workflows, and decision-making frameworks where they matter most. Meanwhile, the deepest friction is rarely acknowledged: before any field can build meaningful consensus on "why" or "how" a phenomenon occurs, it must first establish honest, consolidated agreement on "what" has actually been observed. That prior step is routinely skipped, assumed, or fragmented across siloed literatures that never cross-pollinate. This talk introduces a framework called "Knowledge Aggregation" — with two distinct but complementary ambitions. The first is descriptive transparency: algorithmically mapping what has been said, measured, and documented across a problem space, without imposing causal interpretation or narrative. The second traces the boundary between empirical observation and explanatory claim, building systems that can separate the "what" from the "why/how" — because consensus on mechanism cannot be meaningfully constructed until consensus on phenomenon is first established. Both ambitions are now within reach. By composing tools already at our disposal — large language models, classical NLP pipelines, public data repositories, and engineering-grade automation frameworks — it becomes possible to model knowledge itself, rather than merely imitate individual experts. One concrete expression of this is automating the writing of living textbooks: compressing the lag from bleeding-edge discovery, through replicated evidence, all the way to professional training resources. But the deeper aspiration reaches further — toward automating the discovery of scientific insights that have never previously been conceived, by systematically surfacing hypothesis combinations that no single siloed researcher would have had the cross-disciplinary vantage point to even ask. Drawing on ongoing systems biology and computational research — with ME/CFS research demoed as a use case for what siloed, fragmented knowledge infrastructure costs in practice — this talk maps the conceptual architecture, the real-world friction, and the data science toolkit for building it. Speaker: As a systems biologist at heart, Sam specializes his biomedical research on interactions and connections in biology - rather than just one domain of expertise. He wears many hats and collects skill sets across disciplines, with degree studies and industry experience acquired across Chemical Engineering (BSc), Bioinformatics (MSc), Systems and Synthetic Biology (M2), Biomedical Sciences (MSc), and beyond. Even more important to him than niches or fields of work, comes down to the synergistic approaches that allow us to move beyond reductionism. The notion that a question can only allow for one answer, is inherently reductionist. By resisting many norms in science and engineering which can get overly reductive, his current role as Principal Investigator of Research for DMV Petri Dish (501(c)(3) non-profit local to the DMV region) embraces computational frameworks that aide scale-up and automation - not only around the processes which already exist with established workflows, but also taking a keen interest in attempting and accomplishing ambitions which have never been perceived to be possible previously. Sam carries a passion for the synergy of computational biology - fused with wet lab validation. This way, one can build a beautiful knowledge base in the theoretical sense, and then test to see if said computational prediction might actually be able to stand in the real world with wet lab validation. Translational modeling starts to become possible once biological experiment design can be iteratively looped alongside computational model design, optimization, and analysis - empowering the design of a better wet lab experiment, followed by a better computational model, back and forth until science is done!

• What we'll do On https://blackecon101.podbean.com/ Thursdays at 6 pm. discussing the economy....

• What we'll do Economist William Michael Cunningham on Podbeam Thursdays at 6 pm. https://www.podbean.com/

Enjoy a vibrant and engaging dance experience that blends global rhythms and diverse styles. This class combines elements of Bollywood, Latin, and other dance forms into a smooth, easy-to-follow flow designed to get you moving and grooving at a comfortable pace. Perfect for all levels, this class focuses on fun, relaxation, and connection with the music while giving you a gentle workout. Join us for a refreshing and enjoyable dance session! (Please wear socks). Friday, April 10th from 6:30 pm to 7:30 pm. Held at the Brahma Kumaris Meditation Museum – Virginia, 14020 Thunderbolt Place, Suite 200, Chantilly, VA. **FREE EVENT - Registration Required at [https://shorturl.at/KJoXv](https://shorturl.at/KJoXv)** *Support the Brahma Kumaris Meditation Museum with your tax-deductible* *contribution.* **[CONTRIBUTE](https://www.meditationmuseum.org/contribute.html "https://www.meditationmuseum.org/contribute.html")**

Join us for a laid-back Sunday Brunch. The Brunch is All-You-Can-Eat buffet and a bottle of Champagne (750 ml) with Orange Juice. You make your own mimosa. Just only for $ 35.00 per person without tax & gratuity! It includes French toast, pancakes, waffles, omelettes made to order, Pasta, Salads, Roast Beef, Pork Ribs, oyster bar, cheese bar and Salmon, plenty of fresh fruit, yogurt, cakes, cookies, and pudding....mmmm! After brunch, we mingle and socialize. Closest Metro Station is Clarendon. Please take into account Metro's Weekend Track Work & Service Adjustments. Check it on http://www.wmata.com/ and plan accordingly.

Welcome to Drunken Philosophy, a casual, curious, social discussion club. Come grab a drink and a seat at The Oracle. **Optional topic for this meetup: Where is everybody?** In 1950 the physicist Enrico Fermi was talking about aliens over lunch and asked a question that still has not gone away: if the universe is so vast and so old, and even a fraction of those billions of stars have planets, where is everyone? By the numbers the galaxy should be crowded with civilizations. Instead we look up and hear silence. That gap between "they should be everywhere" and "we see no one" is the Fermi Paradox. One of the most unsettling answers is the idea of a **Great Filter**: somewhere on the road from dead chemistry to a galaxy-spanning civilization, there is at least one step that is almost impossible to get past. Maybe the filter is behind us. Maybe life starting at all, or simple cells becoming complex, or intelligence ever evolving, is the freak accident, and we already cleared the hard part. Or maybe the filter is ahead of us, and advanced civilizations reliably wipe themselves out before they spread. Here is the part that messes with people. If we ever found life somewhere else, even pond scum on Mars, most people would call it the greatest discovery in history. But it might be the worst possible news. It would mean life is common, the early steps are easy, and the hard step is still in front of us. So the eerie silence overhead might actually be the best sign we could ask for. **Questions to wrestle with:** * Is it better to be alone? Would you rather we find alien life and learn we are not special, or find nothing and quietly improve our odds of surviving? * Where do you bet the filter sits, behind us or ahead of us, and why? * If it is ahead of us, what is it? Nuclear war, climate collapse, AI, something we cannot even picture yet? And can we do anything about a filter we cannot see coming? * Two principles pull opposite ways here. The principle of mediocrity (the Copernican principle, Sagan's "no privileged place in the universe") says we are ordinary, so what happened on Earth probably happened everywhere, which makes the silence scream louder. The anthropic principle says of course we find ourselves somewhere life was possible, since we could not observe anything else, so our being here may say almost nothing about how common life is. Which lens do you trust, and does the silence still demand an answer once you account for observer selection? * And if we did confirm life out there and had to accept we are not special, what would that do to belief in a higher power, and would shedding (or keeping) that belief help or hurt our odds of pulling together as one species? * Does any of this change how you live, or how humanity should be spending its time and money right now? As always the prompt is optional. Come for the conversation, stay for the drinks, and bring your own questions.

**Welcome to the Women’s Columbus Bogleheads® Sub-Group** This sub-group is for **women who want to learn and discuss finances in a safe, supportive space**. For those interested in moving towards financial independence and retirement by learning investment basics, choosing your 401(k) investments, minimizing taxes, and more. We’re a local chapter of **Bogleheads®**, following a long-term, practical investment philosophy: [Investment Philosophy](https://www.bogleheads.org/wiki/Bogleheads%C2%AE_investment_philosophy): https://www.bogleheads.org/wiki/Bogleheads%C2%AE_investment_philosophy [Bogleheads Forum](https://www.bogleheads.org/index.php): https://www.bogleheads.org/index.php No question is too small, and no experience is too simple. Share, ask, and learn — at your own pace, without judgment, in a group of like-minded women. Let’s build confidence and knowledge **together**!

🔥 OVER 50 HAPPY HOUR at PBR EASTON! 🔥 Looking to meet new people, enjoy great music, dance, laugh, and have an unforgettable night out? Then grab your friends and join us for one of the most exciting Over 50 social events in Columbus! 📍 PBR Cowboy Bar + Smokehouse – Easton 📅 Thursday, June 18th ⏰ 6:00 PM – 9:00 PM (and the fun keeps going!) This is NOT your typical quiet happy hour… this is a high-energy, country-meets-nightlife experience designed for fun-loving singles and couples over 50 who still enjoy getting out, socializing, and making memories! ✨ What’s Happening: 🎵 Live Music from 6:30–8:30 PM 🐂 Mechanical Bull Riding starting at 8:30 PM 💃 Line Dancing with Instructor from 9–10 PM 🎧 DJ & Dancing starting at 9 PM 🍹 Drink Specials All Night: $3, $4 & $5 specials! Whether you want to relax with a drink, hit the dance floor, try the mechanical bull, or just meet a great group of people in a fun atmosphere — this event has something for everyone. 👉 IMPORTANT: When you arrive, CHECK IN with the host under: “Doug / Meetup” to receive your wristband. 🚗 FREE Parking available across from the venue and at the Easton West Garage. Come when you can, leave when you want… but don’t be surprised if you stay all night! Let’s make Thursday night FUN again! 🎉

Start your week the right way with Manic Mondays. Giving you an enjoyable Bachata lesson with a push of cool moves. The second hour has Beginner/Intermediate Salsa on 1. You must understand basic Salsa skills to participate. 730pm-830pm Bachata Cool Moves 830pm-930pm Salsa On 1 (Beginner/Intermediate) 15 for One Class 20 for Both Free Parking & Plenty of Dance Space. Viva Dance Columbus 2809 Festival Lane Dublin OH 43017

NFT's are here to stay folks! This is a group for like minded people interested in understanding, leveraging, using, creating for, profiting from, trading too i suppose, NFT's.. everything around them, complexity, fear and exploits, best practices and more. **PLUS** This group will talk AI ART tools, techniques, artists, video, audio, prototypes and more in the AI assisted production space- ART specifically, but we can get into any aspect of some of the cooler things happening in AI in general.

If you are interested in selecting investment choices for your 401(k) or other workplace savings plan, minimizing your income tax liability, or identifying the most effective investments for your brokerage account, we are the group for you. We are a local chapter of Bogleheads, whose investment strategy can be found here: https://www.bogleheads.org/wiki/Bogleheads%C2%AE_investment_philosophy Or you can peruse the Boglehead forum here: https://www.bogleheads.org/index.php I look forward to seeing you there. Mark Vonder Haar

**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: This month Chris Pazsint will be talking about Agentic Coding. How does one use CLI Based Agents, and Agentic IDEs such as Cursor, Kiro, Antigravity? How to include agentic coding plugins for IDEs you already love such as Visual Studio Code. 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