Less Wrong

Come to the Silver Spring library to play games some chronically ill friends! Members are adults who suffer from conditions including POTS, ME/CFS, long covid, MCAS, rheumatoid arthritis, Ehlers Danlos, multiple sclerosis, ulcerative colitis, autoimmune kidney disease, and more. We usually play a couple casual games, and we also have coloring books. Feel free to bring your own favorite games too! We'll in SMALL ROOM 2 on the third floor of the Silver Spring library, just outside the elevator. We ask that everyone wears a mask. There is parking across the street in the Wayne Avenue Garage.

Socrates Café meets on the first Saturday of each month. Though this may be considered a "philosophical" group, there are no rules as to what is discussed. Usually, the topics revolve around social concerns, morality, and the first principles of things. Prior to each meeting we vote online for the questions we will discuss. That way, we will have enough time to ruminate on them and have more in-depth conversations. If you RSVP to a meeting, you may post your question in the event comments section below. I'll send out a survey for voting a few days prior to the meetup. We discuss two questions each night. So you will get to cast two votes in the survey. When we meet, we break into smaller groups of five to seven to discuss the top two vote-getters. Each group discusses one question for around 45-50 minutes, and we then take a short break. After reconvening, each group moves on to its second question. Hope to see you there! -Brian

This event is NOT for beginners please. If you can't make it, please try to sign out at least 5 hours before the event starts. Thank you!

Let's get together to play some competitive coed doubles volleyball. **COST**: FREE **Court Type**: Outdoor grass **Minimum Skill Requirements**: Solid BB (click [here](https://docs.google.com/document/d/1PojSi4qdlRsv1msCHhvpQ43iDc4FfzQwpWCc3kafVMY/mobilebasic) for details) Attention: 1. This event is **not always on a first come, first served basis**. [Good doubles partner](https://docs.google.com/document/d/14weEw-P52XKx0P8K2l-ZOFtYU61wmfdkSkopbG5avro/) and those who can bring a net and ball, may get priority over others on the waitlist. 2. 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. 3. Each person must help set up and take down one net, leaving some nets unset for latecomers. **Smiley Social documents:** 1. [Group Rules](https://docs.google.com/document/d/1HrG35p_0M08leRvCp8XWG3CMkr_GL928XFabl5T6Dvg) 2. [Smiley Social Volleyball Levels](https://docs.google.com/document/d/1PojSi4qdlRsv1msCHhvpQ43iDc4FfzQwpWCc3kafVMY/edit) 3. [Good doubles partner](https://docs.google.com/document/d/14weEw-P52XKx0P8K2l-ZOFtYU61wmfdkSkopbG5avro/) 4. [Liability Waiver](https://docs.google.com/document/d/1W2mq-7m99lmvd7gdWYaSUFtvVg4UGnzV6koafAbHmco)

Join us at the Chess Center offices (Suite 118, entrance on 2nd Avenue) on Saturday afternoons from 1:00 – 5:00pm ET for open play. Players of all abilities and ages are welcome. * Non-Members: $5.00/player table fee for the day. * Chess Center [Members](https://chessctr.org/membership/) always play for FREE ($0.00). Check our social media ([Twitter](https://twitter.com/uschess) / [Facebook](https://www.facebook.com/USChessCenter)) for closure announcements: The Chess Center is closed on major holidays. We also have chess sets, clocks, and [used chess books](https://chessctr.org/usedbooks/) for sale.

The pickleball courts are situated on the far side of the playground, past the swing sets and picnic area. These courts (are] strictly on a first-come, first-served basis, and we do not offer reservation for public use. The courts are frequently unoccupied, but sometimes few people utilize the courts. We've created a WhatsApp group for our Meetup community to help everyone stay connected and get event updates more quickly. It’s a great way to share important info, coordinate plans, and keep each other in the loop about upcoming meetups. Feel free to join so you don’t miss out on any of the fun! https://chat.whatsapp.com/Bw0vxcNKRC1CeHixU41wTG

​**Due to the popularity of the event, registration is required at [https://luma.com/dcmahjongg](https://luma.com/dcmahjongg).** We do not use the RSVP system on Meetup. ​ **Drop-in games every Sunday afternoon at the Lillian and Albert Small Capital Jewish Museum.** * **Lessons (11:00 - 1:00) for new and returning players begin promptly at 11:00.** The fee is $10. * **A Support Table (1:00 - 3:00) is available for those who have taken a lesson and want to play with an instructor overseeing the game.** The fee is $5. * **Drop-in play (1:00 - 3:00) for** all experienced players. Tables are labeled for All Levels and Mahj Mavens. All skill levels are encouraged to participate. Play is free, but a donation of $5 is encouraged to help defray event costs. ​ If you own a mah jongg set, we encourage you to bring it. Please bring your NMJL card if you have one. ​The museum is located one block from the Judiciary Square Metro station (Red line). Street parking is available, and a paid garage is located at 3rd and G Streets. You do not need to be a member of the museum to participate. On entry to the building, you will be directed to the Nosh Pit, where you can also purchase a snack and coffee while waiting for the games to begin. *Photographs taken by Museum staff during the program may be used for educational and promotional purposes in print and online publications. Attendance at the event implies your consent.*

Title: Beyond Cryptography: Geometric Symmetry & Parity Stability Summary: Decoding Chaos: Using Quantum-Inspired Symmetry Metrics to Detect Stealth Attacks in High-Stakes Infrastructure. Agenda: Why symmetry matters after the proof is done. Symmetry as an Invariant Symmetry as a Security Primitive Trust as a Continuous Function Live Thought Experiment Engineering, Implications & Open Questions Move away from traditional bit-matching and discuss "Symmetry Drift." Explain how system states can be modeled as high-dimensional manifolds where an attack represents a geometric deformation.T(t)=f(symmetry stability,parity consistency,temporal coherence) Speaker: Vijay Krishna Vijay is a security engineer focused on runtime observability and symmetry drift in cryptographic systems. He is the founder of Vyapti Resonance and the creator of the Quantum Security Probe (QSP), a telemetry-driven integrity monitoring framework for post-quantum infrastructures. His work bridges theory, engineering, and long-lived system behavior, emphasizing measurable trust over binary verification. Vijay has 9 accredited licenses in Quantum Computing. Career Snapshot: Microsoft → DuPont → Rockefeller Capital Management → Morgan Stanley → New York Life → Founder, Vyapti Resonance Across this trajectory, Vijay has operated at the core infrastructure layer of organizations—cloud platforms, identity systems, distributed compute, reliability engineering, and governance frameworks. His work has consistently involved systems that cannot fail, particularly in regulated financial and insurance environments. This enterprise grounding strongly informs his academic and research outlook: quantum and AI systems must be operable, governable, auditable, and teachable, not merely theoretically elegant.

As always, the goal is fun. Beginners are welcome. We play until 5 or 6. Parking (Free): Plenty of free street parking available on Sunday afternoons near the playing area. Contact Organizer for exact address and other helpful details Metro: Foggy Bottom Metro Station is an 8 minute walk

**Notice the new time. We are now 2-5pm.** Bring your own board games! The MoCo Pride Center has a few games as well. Newcomers welcome! You don't need to know anything, we will teach you how to play! We do not serve food. Note that you can bring drinks and food, but plan to leave the place tidy. Some of us may also get food together afterwards. Info about the MoCo Pride Center: [https://www.mocopridefamily.org/pride-center-home](https://www.mocopridefamily.org/pride-center-home) The Center is close to the **Bethesda Metro Station**. It is on the 2nd floor of the **Bethesda-Chevy Chase Regional Services Center**. Look for the **blue awning** that says Geste Beer at the cross of Old Georgetown Road -- the front entrance is directly to the left of this awning. The Bethesda-Chevy Chase Regional Service Center has an attached garage, which is accessible on Edgemoor. Go past the Center, then turn right at the stop sign across from the Metro stop. The garage is your first right. Payment is mobile using the ParkMobile app.

This is the sign you've been waiting for. Come write with us Sunday at 7:30 am at Kaldi's Social House in Arlington. Kaldi's opens at 7. Grab a coffee and join the group! We generally have 10 to 14 writers attend each week, and new folks are welcome to drop in anytime. Intros start at 7:30 am. We will write for one hour. After writing, feel free to debrief, share thoughts or get advice. Our meetups are a safe space for writers to work on their craft. No one will read or critique your writing. Kaldi's Social House website: https://www.kaldissocialhouse.net/ \* Resource \* Many thanks to Justin for putting together a shared file of resource discussed at the meetings. Feel free to add to it! [https://docs.google.com/spreadsheets/d/13LONNjZvsO5hEXM7NsBnWCgy3GgPgjAbQxE0lPxp7hc/edit?usp=sharing](https://docs.google.com/spreadsheets/d/13LONNjZvsO5hEXM7NsBnWCgy3GgPgjAbQxE0lPxp7hc/edit?usp=sharing)

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

This is a time where players of all ages, and skill levels can gather and enjoy a nice Sunday full of Chess!

Some trained COUNT volunteers work together once a month at RMH (http://www.rmhc-centralohio.org/volunteer.php) as Housewarmers (usually on the 1st Sunday from 1 – 5 PM). Some schedule other shifts at their convenience. You may try this out with less fuss by following a "Fast track" or go through the normal process. Fast track • Arrange a time to shadow a COUNT volunteer. Call Dave Nohle at 614-268-9558 (cell). • Show up and try it out. • Complete application, etc. later. Normal process • Complete an online application (http://rmhc-centralohio.org/volunteer/). • Attend orientation in advance. • At orientation you will complete forms agreeing to keep family/patient info private and allowing a background check and tour the facility. • Complete one training shift. Daily shifts are: morning 9 AM - 1 PM, afternoon 1 - 5 PM and evening 5 - 9 PM. • Schedule shifts online using the on the RMH scheduling system (http://www.volgistics.com/ex/portal.dll/?FROM=32895). The Ronald McDonald House (RMH) provides housing and meals for families with sick children. The Columbus RMH is the largest in the world with 137 rooms. COUNT has been volunteering there since May 2014. Housewarmers work with RMH guests to provide a home-like environment - greet, assist with family needs, answer phones, give tours, assist with checkin/checkout, prepare guest rooms after checkout, clean facility, laundry, restock supplies and staff the front desk. RMH Housewarmers volunteer at least one four-hour shift a month. All Housewarmers must complete an application and agree to a background check before they can be full fledged volunteers.

(Note: RSVPing here on Meetup does NOT reserve your seat. To do that, you'll need to register at our website, **[HERE](https://www.coreerocks.com/Events.aspx?ID=IN-PERSON-in-Columbus-Creative-Deal-Autopsies-Wholesaling-101-14-4-7-2026)**.) The market changed—and most investors are still operating like it didn't. Deals that used to work don't. Buyers want different things. And a lot of what's being taught right now is outdated or just wrong. And, since 2011, it's been our job to make sure that our members are armed with the most up-to-date, real-world strategies for building wealth in Central Ohio real estate… …so our mission with this meeting (and every meeting) is to give you the no-hype, warts-and-all info you need to succeed. First, Wholesaling 101—a clear, real-world look at how wholesaling actually works today, what to pay, and how to stay out of trouble. Then, Creative Deal Autopsies—real investors breaking down real deals with real numbers, real conversations, and real outcomes. You'll also get the chance to put the presenters in the hot seat and ask any and every question you have about how they did their deals. You'll learn: 1. What wholesaling actually is 2. How to calculate real offers 3. Where deals are coming from now 4. What buyers want 5. How creative deals are structured 6. What contracts and terms are used 7. What can go wrong—and how to avoid it **Agenda:** 5:00–6:00: Free Light Dinner and Networking 6:00: Earlybird Meeting – Wholesaling 101 7:00: Buy-Sell-Trade (members only) 7:30: Creative Deal Autopsies Members: Free First-time guests: Free Non-members: $35 (or join for $30 instead) Remember, to actually reserve your seat, you have to go **[HERE](https://www.coreerocks.com/Events.aspx?ID=IN-PERSON-in-Columbus-Creative-Deal-Autopsies-Wholesaling-101-14-4-7-2026)** and register on our website!

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!

This is an in-person meeting. At this meeting you will get answers to depression and anxiety. Find out the source of them and how to get rid of them. Did you know that unwanted emotions like anxiety, depression, unhappiness, loneliness, hopelessness, anger, fear, or feelings of irritation don’t just fall on you for no reason. They are not random occurrences that simply happen to people's minds. They are definitely not due to a chemical imbalance in your brain from some nebulous chemical reaction "by chance". Your negative emotions are the symptoms of the painful experiences that you have which are not healed, and which are still affecting you. The effects of these painful experiences are exacerbated by the pressures or difficulties of the other problems in your life. Come to our Meetup, where we can introduce you to some of the knowledge, tools and techniques of the breakthroughs in the field of the mind that we can apply to this ever important area of life. Be sure to click on the red "Attend" button below to come to this local event. We look forward to seeing you there. This group is created by the Hubbard Dianetics Foundation of Central Ohio and Church of Scientology of Central Ohio.

The Fellowship of the Star Schema: Transforming OLTP Data for Power BI One does not simply build reports on OLTP data. Join us on an epic journey from the depths of raw, normalized tables to the shining halls of a well-modeled star schema fit for Power BI greatness. We will demystify the differences between OLTP and OLAP, walk through star schema vs snowflake (and why Power BI has a clear favorite), and show you the compression differences between normalized and columnar storage that will make you never look at an OLTP model the same way again. We will cover the different types of dimensions, when to use them, and how to handle Slowly Changing Dimensions without losing your mind. You will leave knowing exactly how to identify a bad model, how to convert OLTP data into a clean star schema, and how to forge relationships that rule them all. Whether you are a data wizard, a curious hobbit, or somewhere in between, your models will never be the same.