Cryptocurrency

Wanna see fireworks, but can't wait till the 4th of July? Then come see the fireworks at the [https://nationalcherryblossomfestival.org/event/petalpalooza/](Petalpalooza) ! We'll meet at the Half Street / Nationals Ballpark entrance of Navy Yard Metro at 7:30 PM. The Navy Yard Metro is on the Green Line. I will post the Metro service adjustments before the event. I will take a COVID test. If I test negative and feel well, I'll be there. Otherwise, I'll stay home. The event will still go on regardless. If the forecast calls for rain or thunderstorms, I'm cancelling the event. See you soon, Jenny

Danceintime runs Cuban Salsa Classes & Social Dancing Every Saturday, all year-long. Come at 1:15 pm to sign in. Stay till 4 pm. Some of us go out for coffee or a bite to eat afterwards and everyone is welcome! $15/person. Cash, PayPal, Venmo, Apple Pay, or Card accepted. Chevy Chase Baptist Church; 5671 Western Ave. NW; Washington DC 20015. NOTE: Enter through back corner door of the church. Danceintime classes are great fun. The dance moves are beautiful, fun, and our class creates a bonded community... Check it out! Class will be held every Saturday in December....celebrate the holidays with dance! For more info: danceintime.com/classes Questions? Contact Barbbernsteintalks@gmail.com

We'll check out Compass Coffee on Wisconsin in DC ( they have multiple locations). After the coffee meetup, we will check out Pizzeria Paradiso in Georgetown (few blocks from the coffee shop) for some sour and wild beers. If anyone is interested, you can join us around 2PM. Please have a picture profile so we can recognize you in the meetup. Please only sign up if you're sure about attending this meetup, and please update your RSVP as soon as possible if you need to cancel, thank you!

**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)** **RSVP CUTOFF (i.e. Final Change Your Mind if Registered YES)** → **RSVP Cancellation Cutoff for this Event is Saturday 10a, 4/4**. (*Late Cancel applies after this, repeat occurrences can impact membership*) We are heading to Floriana in Dupont Circle. This is one of DC’s *most consistent Italian restaurants with* a strong reputation for seasonal cooking and house-made pastas. **FOOD**: Floriana serves Italian cuisine centered on handmade pastas, seasonal ingredients, and balanced sauces. The kitchen emphasizes consistency and clean presentation. Dishes often recommended by diners include cacio e pepe with a sharp cheese and pepper profile, squid ink pasta with seafood for depth and texture, and braised short ribs with rich, slow-cooked flavor. Branzino is frequently highlighted for its light preparation, and risotto dishes rotate with seasonal ingredients. Starters such as burrata, arancini, and calamari are commonly ordered and well received. Desserts like tiramisu and gelato complete the meal. The cocktail program focuses on classic, balanced drinks with Italian influence, while the wine list leans heavily toward Italian regions with a range of approachable options. Most members should expect to spend between 45 and 80 dollars for dinner and drinks. → **Explore Floriana's menu:** **[https://www.florianadc.com/dinner-menu](https://www.florianadc.com/dinner-menu)** **SPACE**: Warm and intimate dining room with a smaller footprint and relaxed energy. The setting stays comfortable and quieter compared to larger venues, even on weekends. → **Visit the restaurant site**: [https://www.florianadc.com](https://www.florianadc.com) +++++++++ - Tax/Tip combo is our required 30% tax/tip policy (see the FAQs for more details). - Limited to 6 slots See you there! JoeN **CLOSEST METRO**: - **Dupont Circle (Red)** is the closest stop. Exit toward Q St NW and walk south on Connecticut Ave NW, then turn left onto 17th St NW. The walk is about 3–5 minutes. - **Farragut North (Red)** is also nearby. Walk south on Connecticut Ave NW, then turn right onto 17th St NW. The walk is about 7–9 minutes. - For directions using the Metro, try using the Plan a Trip feature at the WMATA website ([click on your preferred Metro station](https://www.wmata.com/rider-guide/stations/index.cfm) then at the Station page level click "Plan a Trip". **PARKING**: Street parking is limited in Dupont Circle, especially on weekends. Nearby garages are available within a few blocks. Plan ahead for parking. ***Attendance Notes:*** - *I**f 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:*** [Visit our FAQs](https://docs.google.com/document/d/1C0GeZMWGwc1akHj63aViQ_5n1YpBqPt_/edit?usp=drivesdk&ouid=107783167750249492259&rtpof=true&sd=true) and [No-Show Policy](https://docs.google.com/document/d/1BU0ZjQNdMwTjIkZVGlOlw8rTIia5xWhE/edit?usp=drivesdk&ouid=107783167750249492259&rtpof=true&sd=true) if you're unfamiliar with how we run things. - **Can’t get a slot? Join the Waitlist and check back frequently*** —spots often open up before Noon on the day 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! JoeN

Come out, relax, and make some new friends! Bring whatever your preferred morning drink is (there’s 4 coffee shops within a 10min walk including BadAss Coffee right around the corner and Compass and Detour about 10min away) and join us in Quincy park for some laid back conversation. Well-behaved, leashed pups are welcome too! Come and go as you please within the event time - looking forward to meeting everyone!

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.

Come play some casual Commander at Crystal City! Bring your favorite decks for some pickup games, and feel free to bring your trade binders if you'd like! **We play at 2100 Crystal Drive** in Arlington, VA, 22202, which is a seating area that is right next to We, the Pizza in Crystal City. Detailed directions on how to get there: **Directions from the Metro:** If you're taking the Metro, exit at Crystal City. When you come up the first set of escalators, turn left to enter the underground shops and then turn left again after a brief walk. Cross the street, enter the next building, and the seating area will be on the left after passing the Minuteman Press Printing and Marketing shop. **Parking:** If you're driving, garage parking is free after 4 pm. Enter the garage on 2144 Crystal Drive. There will be elevators that take you up to the main level. If you have any questions, please join our Discord for the most up-to-date information: https://discord.gg/fBUWvrAVMv

Open gaming at Panera! New players welcome. We have many games on hand or you can bring your own. We are happy to teach or learn one of yours.

Goal Focus & Flow is a casual, women only event created for deep focus, intentional progress, and genuine connection. Bring whatever you’re currently working on, studying, planning, writing, researching, job searching, creative projects, or personal goals and spend focused time working independently while surrounded by other women doing the same. The energy is calm, supportive, and rooted in mutual growth. At the end of the session, we’ll do a brief, optional share where participants can talk about what they worked on and what they learned. Sharing insights helps reinforce learning, spark ideas for others, and turn individual progress into collective knowledge. This space is intentionally designed to help women: Stay accountable to their goals ✅ Learn from one another in an organic, low-pressure way Retain what they’re working on by reflecting and sharing ‍♀️ Build friendships while growing side by side The shared focus and reflection create a natural sense of connection, allowing friendships to form through growth rather than small talk. Location note: For women’s safety and comfort, the venue will not be shared publicly. The exact location will be shared privately in the group chat with confirmed attendees. Join the group chat here: https://chat.whatsapp.com/H533SlZi8h70XjkN6iSEws Come as you are. Work at your own pace. Leave with clarity, momentum, and the feeling that you’re not growing alone.

**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.

Join us after the walk for dinner at Royal Durbar Kitchen, a cozy Nepalese spot known for its rich flavors and warm atmosphere. Come hungry and ready to unwind with great food and even better company.

Join us for a meetup lunch! Meet new people and make new friends. This will be a small size group for lunch. Members only please I Will have a reservation. Easy free parking! See you there!

## **Columbus Bitcoin Meetup – Event** Join us for another great evening dedicated to Bitcoin, learning, and community. We will be gathering in the private room at Olentangy Brewery for an evening of conversation, education, and fellowship with fellow Bitcoiners. This special event will feature three guest speakers sharing insights from across the Bitcoin ecosystem. ### **Guest Speakers** **Lindsay Faust** Relationship Manager at River **Andrew Tilmann** CEO of the Midwest Bitcoin Summit **Carlos Estrada** Founder of Coin Vigilante In addition to speaking during the event, Andrew Tilmann will also be available for a meet and greet. This will be a great opportunity to ask questions about the upcoming Midwest Bitcoin Summit, taking place September 23 and 24 at the Columbus Convention Center. ### **Midwest Bitcoin Summit Discount** Early Bird pricing ends **April 1st**, but you can still save **21%** by using the promo code: **COLUMBUS** Use the link below to apply the discount: [https://tickets.midwestbtc.com/affiliate/columbusbitcoinmeetup/event/midwest-bitcoin-summit-2026/?promoCodeTask=apply&promoCodeInput=columbus](https://tickets.midwestbtc.com/affiliate/columbusbitcoinmeetup/event/midwest-bitcoin-summit-2026/?promoCodeTask=apply&promoCodeInput=columbus) ### **Event Details** This will be a three hour event, with speakers beginning just before 7:00 PM. There will be plenty of time afterward for networking, meeting new friends, and continuing the conversation. Food will be provided. We look forward to seeing you there! ***

Have you always wanted to check out a rave… but didn’t know where to start? This is your chance. Whether you're a seasoned headbanger or completely new, we’d love to have you out. On April 11, Jessica Audiffred is taking over Otherworld — and this is *not* your typical venue. It’s a massive immersive art space filled with surreal rooms, hidden passages, and interactive exhibits… and for this show, almost all of it is open. So you’re not just going to a concert — you’re stepping into an environment: 🎧 A high-energy bass set that you *feel* 🌀 A labyrinth of trippy, explorable art spaces 👯‍♂️ A group to go with so you’re not figuring it out alone You can lose yourself in the crowd, disappear into another room, find something completely unexpected, and then come back right as the drop hits. No pressure, no “right way” to do it — just explore, move, and take it in at your own pace. 📍 Otherworld, Columbus 🗓 April 11 🕙 Doors open at 10:15 PM (music does not start in the exhibit space until 10:30 PM.) If you’ve been even a little curious about what this scene is like, this is one of the most unique ways to experience it. RSVP if you’re in 👇 There’s no cost to attend with the group—just the event ticket for Otherworld. Tickets are $40, plus some fees 🙄. You can use code "BassBuds" or "Bangers" for $5 off, which makes it \~$43 out the door. 🔗 [https://otherworld.ticketspice.com/jessica-audiffred](https://otherworld.ticketspice.com/jessica-audiffred) This is being posted to Central Ohio Friends and Columbus Social Connection. Please only RSVP to one group.

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.

💓 **Online Speed Dating Built for First Timers – Real Connections, Zero Pressure!** **🔴 MUST READ: RSVP Alone Won't Get You In!** To attend, you must: (1) Click your age group link below, (2) Complete registration, and (3) Finish the personality quiz. Limited spots available – register now before they're gone! **📋 Choose Your Age Range Below to Register:** - **Ages 18-32** → [REGISTER HERE](https://tempodating.com/product?productId=390.0&productType=onlineSpeedDating&city=Cleveland&groupurlname=collective-local-singles-mixer-event-squad&ar=18-32&face_v=4.0) - **Ages 30-46** → [REGISTER HERE](https://tempodating.com/product?productId=390.0&productType=onlineSpeedDating&city=Cleveland&groupurlname=collective-local-singles-mixer-event-squad&ar=30-46&face_v=4.0) - **Ages 40-58** → [REGISTER HERE](https://tempodating.com/product?productId=390.0&productType=onlineSpeedDating&city=Cleveland&groupurlname=collective-local-singles-mixer-event-squad&ar=40-58&face_v=4.0) - **Ages 55+** → [REGISTER HERE](https://tempodating.com/product?productId=390.0&productType=onlineSpeedDating&city=Cleveland&groupurlname=collective-local-singles-mixer-event-squad&ar=55+&face_v=4.0) --- 🤝 Tired of swiping with no results? Try real conversations instead! Online speed dating removes all the awkward parts of traditional dating. A friendly host guides you through each round, so all you have to do is show up and be yourself. 🎯 **Perfect for:** - Introverts who shine in one-on-one conversations - First-time speed daters seeking a welcoming, easy experience - First-timers who want to date without the pressure of face-to-face meetings - Busy professionals who value their time and comfort **How It Works** 1. **Sign Up** – Click the registration link for your age bracket above. 2. **Finish the Short Personality Assessment** – This helps us optimise your matches for the evening. 3. **Connect on Zoom** – No setup needed. Just click the link and you're in! 4. **Meet Your Matches** – Rotate through fun one-on-one rounds with Cleveland singles who share your vibe. 5. **Discover Your Matches** – We'll notify you of any mutual interest after the event. The rest is up to you! **Event Details** - **Format:** Hosted live on Zoom – guided, fun, and stress-free - **Location:** No venue needed – just a comfy seat and a good internet connection - **Host:** Your personal guide through the evening – friendly, encouraging, and fun - **Vibe:** Light-hearted, easy-going speed dates with open-minded Cleveland singles - **Accessibility:** Join from any device – laptop, tablet, or phone - **Duration:** About 60–90 minutes of structured, fun conversations **Frequently Asked Questions** **How long are the conversations?** Each round is a few minutes – long enough to feel a connection, short enough to keep things exciting! **What happens after the event?** We reveal mutual matches after the event. If you both liked each other, we help you connect! --- ✨ The hardest part is clicking register. After that, we make everything easy. See you there! 💘 ✨

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!

💓 **Online Speed Dating Built for First Timers – Real Connections, Zero Pressure!** **🔴 MUST READ: RSVP Alone Won't Get You In!** To attend, you must: (1) Click your age group link below, (2) Complete registration, and (3) Finish the personality quiz. Limited spots available – register now before they're gone! **📋 Choose Your Age Range Below to Register:** - **Ages 18-32** → [REGISTER HERE](https://tempodating.com/product?productId=390.0&productType=onlineSpeedDating&city=Toledo&groupurlname=collective-local-singles-mixer-event-squad&ar=18-32&face_v=4.0) - **Ages 30-46** → [REGISTER HERE](https://tempodating.com/product?productId=390.0&productType=onlineSpeedDating&city=Toledo&groupurlname=collective-local-singles-mixer-event-squad&ar=30-46&face_v=4.0) - **Ages 40-58** → [REGISTER HERE](https://tempodating.com/product?productId=390.0&productType=onlineSpeedDating&city=Toledo&groupurlname=collective-local-singles-mixer-event-squad&ar=40-58&face_v=4.0) - **Ages 55+** → [REGISTER HERE](https://tempodating.com/product?productId=390.0&productType=onlineSpeedDating&city=Toledo&groupurlname=collective-local-singles-mixer-event-squad&ar=55+&face_v=4.0) --- 🤝 Tired of swiping with no results? Try real conversations instead! Online speed dating removes all the awkward parts of traditional dating. A friendly host guides you through each round, so all you have to do is show up and be yourself. 🎯 **Perfect for:** - Introverts who shine in one-on-one conversations - First-time speed daters seeking a welcoming, easy experience - First-timers who want to date without the pressure of face-to-face meetings - Busy professionals who value their time and comfort **How It Works** 1. **Sign Up** – Click the registration link for your age bracket above. 2. **Finish the Short Personality Assessment** – This helps us optimise your matches for the evening. 3. **Connect on Zoom** – No setup needed. Just click the link and you're in! 4. **Meet Your Matches** – Rotate through fun one-on-one rounds with Toledo singles who share your vibe. 5. **Discover Your Matches** – We'll notify you of any mutual interest after the event. The rest is up to you! **Event Details** - **Format:** Hosted live on Zoom – guided, fun, and stress-free - **Location:** No venue needed – just a comfy seat and a good internet connection - **Host:** Your personal guide through the evening – friendly, encouraging, and fun - **Vibe:** Light-hearted, easy-going speed dates with open-minded Toledo singles - **Accessibility:** Join from any device – laptop, tablet, or phone - **Duration:** About 60–90 minutes of structured, fun conversations **Frequently Asked Questions** **How long are the conversations?** Each round is a few minutes – long enough to feel a connection, short enough to keep things exciting! **What happens after the event?** We reveal mutual matches after the event. If you both liked each other, we help you connect! --- ✨ The hardest part is clicking register. After that, we make everything easy. See you there! 💘 ✨

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