Logic

Updated! Amy Mainzer is no longer able to give the lecture; instead, Kelly Fast has stepped up to fill in! Join PSW Science® on April 10 at 8 PM as we welcome Kelly Fast, Planetary Defense Officer and (Acting) NASA Planetary Defense Coordination Officer. During the question and answer period, in-person attendees and live stream viewers may ask the speaker questions, and in-person attendees may also engage with the speaker during the post-lecture reception. Refreshments are served. For more information on this meeting, please visit: https://pswscience.org/meeting/2534 The meeting will be held in the John Wesley Powell Auditorium, adjacent to the Cosmos Club. The Powell Auditorium is located at 2170 Florida Avenue, NW Washington, DC 20008. Use of the Cosmos Club is restricted to the Powell Auditorium, the entryway to the auditorium, and the restrooms immediately outside the auditorium. Please note there is no onsite parking available. PSW Science, founded in 1871, is one of the oldest scientific societies in Washington D.C. Now, over 150 years later, we celebrate the Society's rich history and contributions to scientific discovery and cross-disciplinary collaboration. For information on how to become a member of PSW Science and membership benefits, please visit https://pswscience.org/join/

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. Since people arrive at different times, each group of 4 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:** 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)

Covid Alert: We will start having classes again at Canal Park on Wednesdays and the dojo on Saturdays. Please bring your own hand sanitizer, and a mask are a must! We'll practice from a safe distance from each other; and progress from there. On Saturdays, class is limited to the first 5 persons to rsvp (until further notice) "DC Kali" is an official training group for FCS Kali. Our curriculum includes knifes, swords, stick-fighting, striking, and grappling; but we place a special emphasis on edged weapons. Please come out and learn some Kali. Our aim is to train hard, learn some sound defense strategies, and make friends along the way. Although FCS Kali is a combat-oriented systems that involves edged weapons, we provide a safe environment for learning w/o sacrificing realism in our training. We teach in small semi-private groups, allowing each individual student to progress as quickly as he or she can absorb the info being taught. Hope to see you all there. Mosi K. Jack, Esq. Training Group Instructor · FCS Manong (under Tuhon Ray Dionaldo) http://www.fcskali.com/ ) Filipino Combat Systems is an organization dedicated the preservation and promotion of all Filipino Martial Arts. Filipino Combat Systems(FCS) is an organization/system with members from around the world. FCS is based on Tuhon Ray Dionaldo's over 35 years of practicing various FMA (Filipino Martial Arts) styles. He's combine elements of each, into one system that's efficient, fast, concise, and logical. FCS members have extremely diverse backgrounds, and Martial Arts systems. We’ve all come together because of our love of the Filipino Martial Arts, and our unwillingness to become involved in the politics that has so often stifled our growth. Please pick one of the following class and fee combos: Drop-In Fee: $25/per class (after 1st free Saturday class) Monthly fees: $80/month (Wednesday park classes included for free), or Quarterly fees: $210/every 3 months (which comes to $70/month; includes the Wednesday park classes), or Wednesday Park only: $50/month • Cash and Paypal are preferred method of payment (online payments via Square are available at: https://squareup.com/market/dc-kali ) • One free trial class is permitted (but must rsvp ahead of class) • Equipment: if you have training knives, rattan sticks, training swords, and/or mma gloves bring them. If not, we may have a few extra. Training Videos http://www.fcskaliphilippines.com/fcs-curriculum-videos.html http://www.bloodnbonesgear.com/id5.html

Second Saturdays, [asyouare](https://asyouaredc.com/) from noon 'til 2. Here's the menu: [Click & scroll down a page to see the menu](https://asyouaredc.com/pages/the-space) or at [Toast](https://www.toasttab.com/as-you-are/v3) As you are is a block from the Eastern Market Station on the Blue/Orange Lines.

We'll check out 29th Parallel Coffee in Fairfax Station. We plan to grab a coffee and head to Burke Lake Park and walk around the lake (weather permitting). There are a couple of parking areas at the park. I marked the parking we're planning to meet at the park. We hope to start the walk around 11:30AM. Please have a picture profile so we can recognize you in the meetup.

Let's get together to play some competitive quads and doubles volleyball. **COST**: FREE **Court Type**: Outdoor grass **Minimum Skill Requirements**: BB+ (click [here](https://docs.google.com/document/d/1PojSi4qdlRsv1msCHhvpQ43iDc4FfzQwpWCc3kafVMY/mobilebasic) for details) Attention: 1. This event is **NOT on a first come-first serve** basis and players with higher skill level and players who can bring a net/ball will get priority over others on the wait list. 2. Since skill levels are **self-reported**, some new attendees may not meet the expected level. For doubles, we encourage you to choose a partner you can enjoy the game with, and since this 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. 4. Please answer all questions, so it's helpful for us to organize the event. **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)

**Real connection with fellow Catholics who are eager to grow in Faith and friendship!** This 3 year--- 45min deep dive into the Catholic faith is a great way to spend your Sunday rest day. When you are ready to dig deeper and live the faith more fully this is an optimal opportunity. Talk yourself into this! You may start whenever and can come as often or as little as you desire. Coffee is served w/ small donation. It is taught by the priest and/or OCIA director at St Louis Parish who are ALL fabulous- faithful educators filled with theologically inspired knowledge. You can ask questions at the end, which I love. It is just a wonderful experience to grow. Afterwards if you wish, you can also find your way over to the Little Way Cafe Coffee shop across the parking lot to stay for more community time or read some of the excellent books that line the shelves throughout. If you are new to the community of Alexandria and want to meet like minded folks or a veteran of it, this is a special and unique opportunity and did I mention it is free? :) Hard to believe! Please join me every Sunday at 945 am.

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

This will be our second (and possibly last) meeting on *Nature's God: The Heretical Origins of the American Republic*, by Matthew Stewart. For this meeting, please try to read chapters 4 and 6. (You can skim chapter 5, which is particularly confusing). **Where did the ideas come from that became the cornerstone of American democracy?** America’s founders intended to liberate us not just from one king but from the ghostly tyranny of supernatural religion. Drawing deeply on the study of European philosophy, Matthew Stewart brilliantly tracks the ancient, pagan, and continental ideas from which America’s revolutionaries drew their inspiration. In the writings of Spinoza, Lucretius, and other great philosophers, Stewart recovers the true meanings of “Nature’s God,” “the pursuit of happiness,” and the radical political theory with which the American experiment in self-government began. [LINK](https://a.co/d/bkTWJNb) This book is not always an easy read. You may want to make use of AI tools such as ChatGPT. You can ask it questions like: "What does Matthew Stewart say about happiness in his book Nature's God?" OR: What does Matthew Stewart say about Spinoza? This may be our last meeting on this book. If you want to have a third meeting later, on the last two chapters, let me know. I hope to see you there! Fred

Join us to help us solve the mystery. Mystery Game night is a fun event for all. Corner bakery has lots of space for our group. Seating is first come first serve FREE easy parking. This is on the backside of Montgomery Mall. Guests must be over 50. Food and Drinks available. $2-4 donation suggestion for helping with the game is appreciated. We need all the help we can get in solving this mystery. RSVP today!

This event is being held in partnership with the DMV Spades Meetup Group. Direct questions to the Host, Nne-Nne Abanobi. ><><><><><><><><><><><><><> Hi All! Join us for 2nd Saturday Spades in Greenbelt, MD. Our group is friendly and welcoming. Please give us a try! 📍Hook & Reel Cajun Seafood & Bar 🦐 6002 Greenbelt Road Greenbelt, MD 20770 ⏳️ 6:30pm to 11:30pm 🌟 Join us at this PG County sports bar for food, fun, drinks.....and, of course, Spades. 😀 All skill levels are welcome! Get matched with a partner onsite. 🍷 Happy Hour Specials from 12pm to 7pm: [https://hookreel.com/wp-content/uploads/2024/01/HR_GreenbeltMD_HappyHour_Menu_24x36.pdf](https://hookreel.com/wp-content/uploads/2024/01/HR_GreenbeltMD_HappyHour_Menu_24x36.pdf) Located right off the Beltway. Free parking! Remember to support the business by ordering food/drinks. 🌟 **This event is posted in multiple groups. So, expect a nice crowd.** We look forward to seeing you!

Title: Agentic AI Masterclass for Leaders, Managers & Founders Date: April 12 2026 8:00 am - 10:00 am EDT Abstract Agentic AI is the next evolution of artificial intelligence—where AI systems don’t just respond, but plan, decide, act, and collaborate autonomously. This course is designed specifically for leaders, managers, founders, and senior professionals who want to understand, evaluate, and deploy AI agents in real business environments—without needing a technical background. You will learn: \- What Agentic AI is \(beyond ChatGPT and copilots\)\. - How AI agents reason, plan, use tools, and work together . \- Real\-world business use cases across operations\, HR\, finance\, marketing\, healthcare\, and supply chain\. - How to design AI agent workflows using no-code / low-code tools . \- Governance\, risk\, ethics\, and ROI of autonomous AI systems The course includes hands\-on demos\, live agent builds\, and executive\-level frameworks so you can confidently lead AI adoption in your organization\. By the end of this course, you will be able to think like an AI architect, talk confidently with technical teams, and make strategic decisions about Agentic AI. Target Audience: CXOs, CTOs, CIOs, COOs, business leaders & managers, startup founders & product managers, consultants & strategy professionals ,academicians & researchers, MBA / Executive. education learners. Course Learning Outcomes -Clearly explain Agentic AI vs Generative AI -Identify where AI agents can replace or augment teams - Design multi-agent workflows for real business problems - Build working AI agents using no-code tools - Evaluate risk, governance, and ethical implications - Create an AI Agent roadmap for their organization. Speaker: Prof. Snehal Laddhaa is a dynamic and results-driven professional with a strong background in Electronics and Computer Science, specializing in AI, data analysis, and IoT applications. With over 17 years of teaching experience at reputed institutions, both in India and internationally, including Australia and the UK, Ms. Laddhaa has made significant contributions to academia through research publications and patents. She currently serves as an Assistant Professor at Ramdeobaba University, Nagpur, where they lead innovative academic programs and foster student engagement. Her work spans product development, project management, and cross-functional collaboration, with notable achievements including the grant of a utility patent for "An IoT-Powered Smart Trash Bin" and 17 design patents. She has also received accolades such as the Best Paper Award at Cardiff Metropolitan University and is a certified Australian Qualified Professional Engineer. She is a reviewer of reputed international journals. Her Google Scholar profile highlights a strong publication record in embedded systems, AI, and IoT applications. Moderators: Dr. Pawel Gora, CEO of Quantum AI Foundation [https://www.qaif.org/](https://www.qaif.org/) Dr. Sebastian Zajac, member of QPoland [https://qworld.net/qpoland/](https://qworld.net/qpoland/)

**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** GitHub Copilot is powerful, but what if you could scale from a solo AI assistant to an entire team of specialized agents working in parallel? This session introduces Squad: an open-source framework for multi-agent orchestration that lets you define teams of AI agents with specific roles, responsibilities, and expertise. We'll progress from Copilot basics to the Copilot CLI, explore how Agents add autonomy, and see how Instructions and Skills let you customize agent behavior. Then, the climax: a live demo where a Squad team of 3 agents (Lead, Developer, Tester) stands up and builds a working application in real-time, showcasing true multi-agent collaboration. Whether you're new to AI or exploring how to scale your use of Copilot, this session will show you what's possible when agents work as a team. **YouTube Link** TBD

Physics of Astrology - 6 sessions with Nadia Smirnova - Mierau 6 weekly classes starting on Tuesday April 21, 2026 Register at: LakeCountyAstrology.com Step out of the closet and confidently defend your astrological practice—without getting called crazy at dinner parties! This transformative course explores the physical mechanisms underlying planetary influences on human life. Whether you're a beginner or experienced practitioner, you'll gain the knowledge and vocabulary to articulate how astrology works when your skeptical uncle starts rolling his eyes. Learn to bridge the language of astrological symbolism with modern scientific concepts, understand the tangible forces at play in celestial influence, and develop unshakeable confidence in your practice. No more apologetic mumbling or changing the subject—equip yourself with a solid theoretical foundation that honors astrology. Bio: Nadia Smirnova-Mierau is a New York based astrologer, writer, speaker and ESP practitioner. A former nuclear physicist from the USSR, she has been studying and practicing astrology and extrasensory techniques for over 30 years. Her passion lies in deep investigation and explanation of how astrology and ES abilities work from a physics perspective. Her revolutionary theoretical framework explaining the physics behind planetary influence on our daily life and human extrasensory perception is presented in ‘Physics of Astrology’ book and e-book series (https://www.amazon.com/author/nadia). Related articles by Nadia have been published in NCGR e-news, C*I*A website (https://cosmicintelligenceagency.com/agent-777-nadiamierau/) and Astro-Vision e-book (https://www.amazon.com/Astro-Vision-beyond-Cosmic-Intelligence-ebook/dp/B083CTK4G8/ref=sr_1_1?qid=1579492611&refinements=p_27%3ACosmic+Intelligence+Agency&s=digital-text&sr=1-1&text=Cosmic+Intelligence+Agency), OPA Magazine (https://www.opaastrology.org/CAMarch2019Equinox.pdf), Dell Horoscope (https://www.magzter.com/US/Penny-Publications,-LLC/Dell-Horoscope/Science/324349) and more. Nadia has substantial experience in writing astrology predictions for newspapers as well as presenting them live on radio. Nadia has been interviewed on various media channels, like TV, radio and Youtube. She is an agent 777 at Cosmic Intelligence Agency (C*I*A (https://cosmicintelligenceagency.com/)), a former PR director for NCGR (National Council for Geocosmic Research).

AI is changing how art is made. But when does it stop being your work and start being the machine’s? This month we're going to be doing a panel with with digital image, music, and written word artists, talking about at what point, while using AI in the creation process, does the work become not the artist creation? We encourage audience participation during this event that will be moderated by Chris Slee. Whether you’re deep in the field or just getting curious, come connect with others building and exploring AI in Columbus. Sponsored by [Transform Labs](https://www.transformlabs.com/services) Sign up also accessible via [Transform Labs Luma](https://luma.com/55umjqta)

Join us for an engaging panel discussion on **AI Agentic Coding** and how autonomous AI systems are transforming the way software is built. Experts in AI, software engineering, and developer tools will share insights on how agentic AI—systems that can plan, reason, and execute coding tasks—is reshaping modern development workflows. The discussion will cover topics such as AI-assisted development, productivity gains, challenges around reliability and governance, and what the future of software engineering may look like with AI agents as collaborators. Whether you’re a developer, tech leader, or AI enthusiast, this session is a great opportunity to learn, ask questions, and explore how agentic AI is redefining coding

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 month's prompt concerns the idea of the “warrior philosopher” (seemed appropriate in these times)--that is someone whose understanding of violence, power, and justice is forged through direct experience of war. We are looking at Major General Smedley D. Butler, a highly decorated U.S. Marine raised in a Quaker (pacifist) tradition who later became a prominent critic of American militarism (there is a wonderful biography of Gen. Butler called "Gangsters of Capitalism") Butler's argument in *War Is a Racket* (1935): that many U.S. interventions were driven less by national defense than by corporate and financial interests, with Butler portraying himself as an enforcer for business and Wall Street. We can consider the moral ambiguity of his insider critique—whether complicity strengthens or undermines credibility and also consider some of the concrete reforms he proposed (e.g., “conscript” capital before soldiers, restrict the military to coastal defense, and have only those who fight decide on war). Butler’s life arc clearly changed from pacifist upbringing to warrior to antiwar crusader—and asks whether true understanding of peace requires firsthand knowledge of war, and what that implies about the cost of suffering. So do we need to suffer to understand suffering? Do we have to experience war to appreciate peace? As one more question: in the movie "A Few Good Men" Jack Nicholson's character says that "you have the luxury of not knowing what I know" so do most of us go through life oblivious to real violence and suffering? See you at Drunken Philosophy!

The Humanist Monthly Program is our longest running event and still a community favorite. In the old days it used to be called "Going to HCCO" and we still like to think of it as our flagship event. We will be hearing from Becca Powell, Director of Advocacy and Outreach at Unchained At Last, an organization whose mission is dedication to ending forced and child marriage in the United States through direct services and systems change. Unchained At Last's mission clearly meshes and addresses several of our Humanist Ten Commitments. Becca will educate us about an issue many of us may not be familiar with--but should be. Food and drinks will be provided at the event. Feel free to show up a little bit early to hang out and talk. Going forward our meetings will be hybrid. You can meet us in-person or attend online Join Zoom Meeting [https://us02web.zoom.us/j/87836564953?pwd=4Mi57ElZkDIFlb1fnlNwOJ0NiOK4tP.1](https://us02web.zoom.us/j/87836564953?pwd=4Mi57ElZkDIFlb1fnlNwOJ0NiOK4tP.1) Meeting ID: 878 3656 4953 Passcode: 760812 One tap mobile +19292056099,,87836564953#,,,,\*760812# US (New York) +13017158592,,87836564953#,,,,\*760812# US (Washington DC) The formal presentation will start at noon