Usability

USA Soccer Watch Party at Sports & Social DC! Join fellow fans as we cheer on Team USA during the FIFA World Cup on our massive screens with full sound and an unbeatable game-day atmosphere. RSVP now to unlock exclusive drink deals and match-day perks available only to attendees. Grab your friends, wear your USA gear, and reserve your spot today!

Meet in the parking lot of the Handy Bikes Service Center. At the start of each ride, we'll go over introductions to have a sense of participants' cycling experience. Over the course of our rides, we'll address the following: group riding dynamics; safety (ABC check & trail hazards); gear shifting; hill climbing; audible and hand communication within the group, with other trail users, and automobile drivers; what to bring on each ride; etc... Bring your questions, water & a snack. When it starts getting dark earlier, we'll need lights as well. Helmets a MUST. If you can, and especially if you've had issues with your bike, come a bit early to have it looked at ahead of the ride. PS - all levels are welcome to join, however, be mindful that if you are an experienced rider, please be prepared to ride at the pace of the newest rider in the group. Each week, depending on who's in attendance, and participants' riding ability/comfort level, we may do skills practice as a group in the parking lot or at the west end of Wheeler Ave. Once everyone is comfortable, we'll go for a ride on local trails and neighborhood streets and finish back at the shop. Happy Pedaling !! \~Maya

To secure your spot, purchase your ticket from the Eventbrite link ([https://www.eventbrite.com/e/usa-vs-australia-world-cup-watch-party-tickets-1988963519428](https://www.eventbrite.com/e/usa-vs-australia-world-cup-watch-party-tickets-1988963519428)). RSVPing only on the Meetup page, doesn't allow you to attend the Event. ADVANCE TICKET PURCHASE IS REQUIRED. ABOUT THE EVENT A grand hub of games, where you watch your favorite team, with fellow fans! Put on your favorite team's jersey, grab their spirit and join us for guzzling, grub; and good natured grumbling! ***This event usually sells out and we hit capacity. Need to be on the guest list to access.*** ***GRUB ZONE:*** ***FULL DRINK AND FOOD MENU*** ***PARTY ZONE :*** ***1\. USA VS Australia \(\#USA \#Australia\)*** ***We will be watching games on several TVs and a HUGE Screen. It feels like we are physically in the stadium.*** \- Come one\, come all; YOU CAN FLY SOLO TOO:\) This is the most friendliest event you have ever attended\! \- Feel free to invite your friends\. They don't necessarily have to be a member \- Celebrate your birthdays or your moments in life with us \- Event is 21\+ \- For bottle/table reservation email \(info@merevents\.com\) OR text 202\-368\-1878\. Put on your favorite team's jersey, grab their spirit and join us for guzzling, grub; and good natured grumbling! ***This event usually sells out and we hit capacity. Need to be on the guest list to access.*** Cover is $20. **But it is FREE with RSVP.** **Fellas, it is hard to pass on this!** [) [) [) [) PARKING INFO Parking might be a challenge and the event involves drinking, we highly recommend you to get a shared ride or taxi service. DRINK RESPONSIBLY! Payment Instructions : 1. Login to see the 'Get Tickets' button, on the ticket link. Then hit the button. 2. Verify correct dollar amount for number of people you're paying for. 3. **If *you don't have a Paypal account, proceed to the next page and scroll down to see "Pay with a Debit or Credit Card". Then turn off the button 'Save The Info and Create Your Paypal Account'.*** 4. If you have a Paypal account, simply log in, and pay as you normally would via Paypal. **How to Unblock the Pop-up Blocker on Your Phone** Many of our patrons advised us that they have a Pop-up Blocker on their iPhones and it hinders them from buying tickets. To unblock, please follow the following steps : For Safari Users : 1. Go to Settings. 2. Scroll down to Safari and click on it. 3. Select Block Pop-ups and turn it off. For Google Chrome Users : 1. Open Google Chrome. 2. Click on the three dots and you will see many options. 3. Click on Settings. 4. Scroll down to content settings. 5. Select Block Pop-ups and turn it off. Refund & Ticket Resell Policy All sales are final. We only refund the full amount, if the event is canceled. If it is rescheduled, we will send an email to ticket holders advising that. A full refund will be given to those that let us know within 2 calendar days of the update email, if you are unable to make it on the new date. No refunds will be given after that time. However, you can sell your ticket to someone else if you are unable to attend. Please, feel free to post in the comment box for the event, that you have a ticket for sale. Work out payment between yourselves, and have the seller only send the organizers a message letting us know the full name of the person taking your spot. You must let us know two hours before the RSVP close time, on the day of the event. **FOR FURTHER INFO, REFER THE EVENTBRITE LINK AND PURCHASE TICKET. IT RULES.**

I I BELIEVE I BELIEVE THAT I BELIEVE THAT WE I BELIEVE THAT WE WILL WIN! I BELIEVE THAT WE WILL WIN! I BELIEVE THAT WE WILL WIN! We believe, do you?! Come cheer on the **[USA](https://www.volosports.com/d/8cb38594-9a5f-429d-ae39-e814b79cc74f)**[ as they take on ](https://www.volosports.com/d/8cb38594-9a5f-429d-ae39-e814b79cc74f)**[Australia](https://www.volosports.com/d/8cb38594-9a5f-429d-ae39-e814b79cc74f)**[ on ](https://www.volosports.com/d/8cb38594-9a5f-429d-ae39-e814b79cc74f)**[Friday, June 19th at 3pm at Wunder Garten](https://www.volosports.com/d/8cb38594-9a5f-429d-ae39-e814b79cc74f).** Volo will have an exclusive space for our players to watch all the action. This is the US team's second group stage game and it's on a Friday afternoon, perfectly timed to kick off a weekend of World Cup action. **What you can expect:** Great soccer and vibes 🍺 **2 Free Anheuser-Busch products** i.e. Michelob Ultra, NUTRL, Bud Light, Budweiser **Limited edition World Cup merchandise for giveaway and raffle** 🔥 Exclusive, soccer themed Volo Pass swag (Members Only, [sign up here](https://www.volosports.com/volo-pass)) Bring your friends, wear your USA or Australia gear, and come ready to celebrate, cheer, and enjoy the game together! Note: General admission and entry to Wunder Garten is free, but the immersive Volo experience and perks are available only this registration.

Doubles Volleyball - Competitive 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)

To secure your spot, purchase your ticket from the Eventbrite link ([https://www.eventbrite.com/e/rooftop-language-exchange-and-friending-sunday-edition-tickets-432819734477](https://www.eventbrite.com/e/rooftop-language-exchange-and-friending-sunday-edition-tickets-432819734477)). RSVPing only on the Meetup Page doesn't allow you to attend the Event. ADVANCE TICKET PURCHASE IS REQUIRED TO RESERVE YOUR SEAT. If the link doesn't work please Copy and Paste the Ticket link in Google to see it. ABOUT THE EVENT Venez apprécier l'ambiance chaleureuse d'une conversation en français autour d'un verre de vin et d'apéritifs à moitié prix. C'est ouvert à tous quelque soit votre niveau, que vous soyez débutant ou bien que le Français soit votre langue maternelle. It is irresistible, to enjoy French convo with half-priced appetizers, glass of wine and rail drinks. The Event is open to all levels of French language, from beginners to native fluency.

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!

Ausarian Tantra Yoga is a practice that infuses the spirit and power of enlightenment through synchronizing breath, movement, meditation, and silent affirmation. Ausarian Tantra Yoga incorporates postures that reflect some of the principles of the Kemetic culture. It is a practice wherein gradual and deliberate movement allows moments for the mind, body, and spirit to connect and express oneness. **Please reserve your spot at www.piesfitnessyoga.com**. The session is offered both InStudio and OnLine. The Zoom link for the OnLine session will be emailed 15 minutes before class starts to those who are registered at www.piesfitnessyoga.com. **Sign up for sessions must be made at least 2 hours prior to class.** The address is 1322 Prince St Alexandria, VA 22314. Our entrance is located on the side of the building, parallel to West St. **Street parking is available and additional parking is located at Shiloh Baptist church, spaces 36,37,38,39.** The church is located across the street from the studio, on the corner of Duke St. and West St. Discount is available to seniors, teachers, students, emergency responders, and military. All can save by purchasing class packs.

Weekly Saturday group ride, starting at Handy Bikes Retail Showroom. Come ride with locals in the area! This group ride is for average folks who want to go for an average ride. It's not quite a coffee ride, but it's definitely not a race! Routes will vary around the area, with an average speed around 14 mph (minimum of \~10 MPH) for around 15-30 miles. We'll be on pavement so bikes with smooth tires are encouraged, **helmets are mandatory**. Open to any riders who are willing and able to ride with a group including Class 1, 2, and 3 e-bikes. No speed demons please! Good group ride etiquette is a requirement. Shop opens at 10:00 am Show up and sign in by 10:15 am Roll out 10:30 am Please RSVP in advance, so that the ride leaders can prepare for the group's size. [Handy Bikes on Strava](https://www.strava.com/clubs/737920/leaderboard) [Handy Bikes on RideWithGPS](https://ridewithgps.com/organizations/14675-handy-bikes)

Please join MoonFire on Sunday, June 21 at 12:00 PM, for an indoor observance of the Summer Solstice, the time when fire, courage, and willpower are strong. The Solstice has been celebrated by many people around our earth. It is the cusp between the waxing days and the waning days. A potluck and time for fellowship will follow the ritual; you might like to bring food or drink to share, along with your own plates/utensils, or share our food and supply of washable re-usables. MoonFire holds ritual the 3rd Sunday of every month at the UU Church of Arlington, VA, starting at 12 PM with a pre-ritual briefing. Plan to arrive a little early so you can meet folks and get settled in. Rituals are usually followed by a potluck. We welcome everyone. If you are wondering whether to bring children, are new to Paganism, or plan to take pictures or write about our ritual, let us know ahead of time.

Come join us for the weekly open mic night and enjoy a mix of comedy, poetry, and music!

Similar to our "Beginner Ride", a casual, on-road-avoiding, cycle-path-winding, beginner friendly, group ride. The ride will be led by Maya and Angie, who have a combined 50 years of cycling experience. This is a no drop ride with an average speed of 7- 12 mph. Please bring a helmet, lights, a snack, hydration and wear appropriate clothing for cooler weather (cotton is not your friend in cooler temps and we will be riding in the dark). The ride can be tailored to the skills that attendees want to master, i.e- drinking from water bottle while riding, making tight turns, riding in a small group and cycling etiquette. We will be riding mainly on trails, streets as minimally as possible, and sidewalks only when necessary. This ride is perfect for someone who hasn't ridden in a while and wants to get some easy miles on the saddle; not just for newbies. If you have not ridden your bike in several weeks, months or years, please have a safety check done before the day of the ride. We are just here to have fun.

**NEW MEMBERS or 1st TIME EVENT GO-ERS** Before attending your first event, please take a moment to understand how our dinners work and what we ask of members. → **[Learn how DC Metro Dining works](https://tinyurl.com/Landing-Page-DC-Metro-Dining)** → **[Ensure Group Notifications are Setup (Announcements + In on Waitlist/Attending List)](https://app.tango.us/app/workflow/Enable-Meetup-Email-Notifications-3a85109614fc4907940503d096331392)** **RSVP CUTOFF (i.e. Final Change Your Mind if Registered YES)** → **RSVP Cancellation Cutoff for this Event is Sunday 10a, 6/6**. (*Late Cancel applies after this, repeat occurrences can impact membership*) I’m reviving the “Under the Radar” dinner series, where we check out restaurants that may not always get the same level of mainstream attention but have built strong reputations with local diners. This event takes us to **Guerra Steakhouse** in Rosslyn, Arlington, created by two former kitchen employees from the legendary Ray's the Steaks, the once highly regarded value steakhouse that built a loyal following across the DC metro region before closing years ago. Guerra continues that approachable steakhouse philosophy with generous portions, strong execution, and pricing that compares favorably against many traditional DC-area steakhouses. **FOOD**: Guerra Steakhouse focuses on classic steakhouse fare with a Latin American influence. Recent diners consistently highlight the ribeye, filet mignon, skirt steak, and steak frites for strong flavor and solid value relative to the DC market. Seafood items and sides are also well reviewed, and several guests note that portions tend to be generous without pushing into overly formal steakhouse pricing territory. Vegetarians have some options on the menu, but it is a steakhouse. The menu supports a range of ordering styles, from lighter dinners with appetizers and drinks to more traditional steakhouse meals with sides and wine. Reviews frequently mention attentive service and good value for Rosslyn dining. Reviews frequently mention attentive service and good value for Rosslyn dining. Most members should expect to spend between 45 and 90 dollars for dinner and drinks after tax and tip, depending on ordering style and alcohol on ordering style & beverage participation. → **Explore Guerra Steakhouse's menu (pdf):** **[https://www.guerrasteakhouse.com/](https://static1.squarespace.com/static/61685c8159b81c42ad566c2a/t/698bcf93c7f47d661a191051/1770770323587/dinner.pdf)** **SPACE:** Comfortable and modern dining room with an upscale casual feel. Expect a lively but manageable atmosphere on a Saturday evening, with moderate noise levels and a neighborhood dinner crowd → **Visit the restaurant sit**e:**[ https://www.guerrasteakhouse.com](https://www.guerrasteakhouse.com/)** - Tax/Tip combo is our required 30% tax/tip policy (see the FAQs for more details) - Limited to 8 slots See you there Joe **CLOSEST METR**O - **Rosslyn station** (Blue, Orange, Silver) is the closest stop. Exit toward Wilson Blvd and walk west along Wilson Blvd toward N Quinn St. The walk is about 10 - 13 minutes using standard pedestrian routing and traffic signals - For directions using the Metro, try using the Plan a Trip feature at the WMATA website [(click on your preferred Metro statio](https://www.wmata.com/rider-guide/stations/index.cfm)n then at the Station page level click "Plan a Trip" **PARKING**: Several paid parking garages are available throughout Rosslyn within a short walk of the restaurant, though pricing can vary significantly on weekends. Street parking availability is mixed depending on nearby residential and nightlife traffic. Members may also want to check parking apps such as SpotHero and Parking Panda for discounted garage reservations and advance booking options nearby. Plan accordingly *** Attendance Notes*** - ***If you RSVP “YES,” please commit to showing up****. With 5,400+ members and limited seating, we can’t afford no-shows. It’s not fair to other members or to our relationship with the restaurant.* - **New Members / 1st Timers: Trying to get a slot? Join** the Waitlist and check back frequently: spots (often open up on the morning of the event). You may also receive midweek confirmation emails to reconfirm your RSVP, so please check your Meetup DMs inbox. - **Billing Reminder - Add 30% for tax and tip to your food and drink total**. This is part of our group’s expectations and helps smooth out service with the restaurant Looking forward to dining with you Joe

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.

Based on the novel Roadside Picnic, it is NO picnic, but rather one of the masterpieces of world cinema. Andrei Tarkovsky's 1979 Soviet sci-fi classic, recounts the expedition of a writer and professor led by a mysterious guide called "The Stalker." to a futuristic wasteland called "The Zone." Dripping with existential dread, it continually presents strange occurrences that will have us debating the meaning of what we've just viewed right through the ending. *Stalker* (1979) can be streamed for free on HBOMax, the Criterion Channel or Kanopy. It's also available for rent on Amazon Prime and AppleTV. The Columbus Library has two copies on disc.

We are bringing Microsoft Build sessions to Columbus Ohio! The Central Ohio Azure Meetup and Central Ohio .NET Developer's Group (CONDG) are coming together to bring some of the labs and breakouts from Microsoft Build to your backyard. In this free, 1 day event, you are going to Build stuff with us! And yes, there will be free food. Please RSVP via [Microsoft Build //localhost:columbus | Microsoft Reactor](https://developer.microsoft.com/en-us/reactor/events/27247/).

Let’s meet and wander the galleries! General admission on Sundays is free.

**Presenter:** Matthew Hess, Microsoft MVP **Time:** Pizza at 6:00, Presentation Starts at 6:30pm Eastern **Location:** Theoris, 9000 Keystone Crossing, Either Downstairs or in Suite 230 if main meeting room isn't available, Indianapolis In 2019 (C# 8.0) Microsoft introduced a feature that has generated a lot of confusion, debate and outright dissent. I'm talking about Nullable Reference Types. In this presentation, I we dig into this feature, explore why it exists, what problem it tries to solve, how it works, and how people have critiqued it, so that you as a programmer can decide if and how you want to use it. Looking forward to seeing you there!

**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** *Customize the IDE: Building Extensions for Visual Studio Code* Visual Studio Code is one of the most widely used development environments today, and much of its flexibility comes from its extension ecosystem. Extensions allow developers to customize the editor with new features, integrations, and workflow improvements tailored to their needs. In this session, we’ll cover what extensions are and the different types available, including full extensions written in TypeScript or JavaScript, along with lighter-weight extensions such as color themes, language packs, language support, code snippets, and keymaps. We’ll also look at practical reasons a developer might create an extension, from automating repetitive tasks to adding custom tooling. The session includes a hands-on walkthrough of creating a new extension, testing it locally, and understanding the basic project structure. We’ll close with a brief overview of how extensions are packaged and published to the Visual Studio Marketplace and other distribution options. **YouTube Link** TBD