Computer History

This month's selection is "Empress of the Nile: The Daredevil Archaeologist Who Saved Egypt's Ancient Temples from Destruction," by Lynne Olson! If you're new, welcome! Don't worry if you can't finish or don't like the book, we're here for good casual conversation...

Welcome to our new home at the historic Tivoli Theater! Please check our details for access to the space on [our website](https://www.hacdc.org/visit/). Join the discord for questions / help getting in (use channel #let-me-in) [https://discord.gg/dNjuNhNmeT](https://discord.gg/dNjuNhNmeT)

[Profs and Pints DC](https://www.profsandpints.com/washingtondc) presents: **“Terrors of Irish Fairylore,”** an introduction to Ireland’s strange and unsettling folkloric “Good People,” with Brittany Warman, former instructor at Ohio State University, co-founder of The Carterhaugh School of Folklore and the Fantastic, and co-author of the new book *Fairylore: A Compendium of the Fae Folk.* [Advance tickets: $13.50 plus sales tax and processing fees. Available at [https://events.ticketleap.com/tickets/profsandpints/dc-terrors-of-irish-fairlylore2](https://events.ticketleap.com/tickets/profsandpints/dc-terrors-of-irish-fairlylore2) .] Today it is common to think of fairies as small, childlike, sparkly creatures with glittering wings and dresses made from flower petals. But the fae of traditional Irish folklore were no such things. Amoral, capricious, even malicious when they chose to be, the too-frequently forgotten fairies of times long past would, more often than not, haunt nightmares. Join Brittany Warman, a folklorist who has earned a devoted following among Profs and Pints fans, as she explores the darker side of Irish fairylore. The figures she'll discuss include: The Leanan-Sidhe, a vampiric fairy who gives artistic inspiration in exchange for your mortal spirit. The Dullahan, a fairy with a human spine for a whip and a habit of hurtling across fields in a death coach made from human skin. The Banshee, a mournful fairy whose cry signals a death in the family to which she's attached herself. Dr. Warman also will examine the surprising impact of fairy folklore on two classics of Irish Gothic literature, Oscar Wilde's *The Picture of Dorian Gray* and Bram Stoker's *Dracula.* It’s a talk that will remind you that the relationship between the Irish and the spooky stretches well beyond Halloween. (Doors: $17, or $15 with a student ID. Listed time is for doors. Talk starts 30 minutes later.) Image: “The Banshee Appears,” an 1862 illustration by Robert Prowse (Wicklow Heritage / Public domain).

Hit the pause button for an hour and reduce your stress. You will be compassionately guided through an exploration of intentionally linking your breath with the movement of both dynamic and static stretching and its impact on your (P)hysical, (I)ntellectual, (E)motional, and (S)piritual layers. Then experience the calming practice of restorative yoga which was designed specifically to move you from the fight, flight, or freeze state of the nervous system into the rest and digest state. Leave this all levels, accessible class feeling restored, renewed, and ready for what life has in store for you next. **Please reserve your spot at www.piesfitnessyoga.com.** The session is offered InStudio only. **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 3,5,7,9.** The church is located across the street from the studio, on the corner of Duke St. and West St.

**Inflow 6:00 PM - Talks Start \~6:30 PM** **Reston Community Center - 2310 Colts Neck Rd, Reston, VA 20191** NoVA Hackers is a group located in the Northern Virginia area and is made up of Information Security Professionals from all walks of life, from government and private sector, to students and beginners. The monthly meetings are held much like a mini-conference with 4-8 speakers and only a few basic but strict rules. Participation and Permission Active Participation is required for continued membership and is the only due required. Permission is required to be obtained from anyone providing information to the group from the person providing it to be made public by anyone other than the provider. Historically our talks generally run a bit late and we have a hard stop at 9:30pm for the room. If you want to socialize we recommend you arrive at 6 to meet and greet before the talks. Agendas and remote meeting option available after you join the group.

Everyone, please join us on Monday, May 11 at 7 p.m. to discuss [The Screwtape Letters](https://www.amazon.com/Screwtape-Letters-C-S-Lewis-ebook/dp/B002BD2V2Y/ref=tmm_kin_swatch_0) by [C.S. Lewis](https://en.wikipedia.org/wiki/C._S._Lewis)\. \| 222pp\. This timeless classic recounting the correspondence between two devils is one of Lewis’s most brilliant imaginative creations and has sold millions of copies worldwide. “My Dear Wormwood...."? Enter Screwtape, an experienced devil. His nephew Wormwood is just at the start of his career as a tempter and has been assigned to secure the damnation of an ordinary young man who has just become a Christian.? In this slyly humorous exchange, C. S. Lewis delves into moral questions about good and evil, temptation, repentance, and grace. This is a book for C. S. Lewis fans and anyone who wants to take a deep dive into what it means to be a human. Lewis uses The Screwtape Letters to convey religious concepts like temptation in an understandable way by exploring free will and how it is humanity’s greatest weakness as well as its greatest strength. Our meetings have a $3 fee, purely to offset the cost of Meetup. This can be paid via Venmo, Paypal, or in cash. We do not accept requests from authors to read their books. We will never ask for money beyond the above fee. If you receive offers purporting to come from the club they are part of an online scam.

Join us for the first History Club Happy Hour as we kick things off together. This inaugural meetup is a chance to meet fellow history lovers, enjoy good conversation, and help shape what this club becomes. We’ll swap ideas for future events like happy hours, museum visits, walking tours, trivia nights, discussions, and anything else members would like to create. Whether your interests are ancient Rome, military history, political intrigue, world wars, revolutions, presidents, or obscure historical rabbit holes, you’re welcome here. Date: 13 May Time: 5:30 PM until we get bored Venue: The Whiskey Room at Union Street Public House 121 S Union St, Alexandria, VA Come raise a glass, meet new people, and help launch something new for history fans in the DC area.

Join your HacDC Squad for a fun gaming session. Plan for 5/16/2026: Clone Hero (Guitar Hero clone) Deep Rock Galactic (on sale for $9 right now) L4D2 ($10) Last Train Outta' Wormtown (Free to join a lobby) Straftat (Free) Halo Infinite (Free) Suggested donation $10, NOTAFLOF Our Discord link is [https://discord.gg/YTeBg2fEgX](https://discord.gg/YTeBg2fEgX) Send a message to the #let-me-in channel upon arriving under the Gala theater marquee.

Want to mess with some electronics? Or perhaps contribute to HacDC's main group project? HacDC's latest event brings hardware projects to the community. We will focus primarily on the main project (Space Blimp!) but please feel free to bring some of your own projects to show off and work on!

Join us for a deep-dive with the team at **[Granica](https://www.granica.ai/)**[ ](https://www.granica.ai/)as they walk through the architecture they've built to tackle Data Lakes at enterprise scale: a unified maintenance suite covering vacuum, partition expiration, and right-to-erasure across all five major table formats. Expect real deletion semantics by format, common migration footguns, and the safety layer — retention floors, deferred recovery, multi-schedule, S3 Inventory — that makes cleanup safe at petabyte scale. Tarang and Tom will walk us through the architecture, share the deletion semantics that differ by format, call out the migration footguns teams consistently hit (shared-path tables, deletion vectors silently breaking VACUUM), and explain the safety layer — retention floors, deferred recovery, multi-schedule, and S3 Inventory integration — that makes it possible to run aggressive cleanup at petabyte scale without losing sleep. What you'll take away * Deletion semantics across Hive, Delta, Iceberg, and beyond * Common migration footguns — shared-path tables, deletion vectors breaking VACUUM * How to make GDPR right-to-erasure auditable at scale * Safety patterns: retention floors, deferred recovery, S3 Inventory integration **Speakers:** **Tarang Vaish — Co-founder & CTO, Granica** Tarang built production AI email security at Armorblox (acquired by Cisco), scaled distributed data at Cohesity, and worked on GPU development at AMD — giving him a full-stack view from silicon to SaaS. Granica now runs in production at some of the world's largest SaaS companies, managing 100+ PB of customer data. M.S. Computer Science, Stanford. **Tom Molloy -- Director of Enterprise, Grancia —** Tom was one of Snowflake's earliest sales hires and spent nearly a decade growing the platform from pre-beta to enterprise ubiquity. He later led go-to-market at dbt Labs and theom, working with large organizations on data governance, transformation, and security at scale.

Join us for our May happy hour! For those that don't drink, the bar has mocktails and sodas. **Getting there:** * Punchbowl is on the end of the building, **across from South Block** We plan to be on the first floor bar, right when you walk in. * **Metro:** PB is a block and a half away from the Ballston Metro stop * **Parking:** there is street parking and the mall also offers really cheap parking. $1 an hour for the first three hours.

[Profs and Pints Northern Virginia](https://www.profsandpints.com/washingtondc) presents: **“How AI Alters Thinking,”** on dealing with artificial intelligence’s capacity to change and undermine our thought processes, with Eli Alshanetsky, assistant professor of philosophy at Temple University, principal investigator at its Cognitive Integrity Lab, and author of an upcoming book on AI and freedom of thought. [Advance tickets: $13.50 plus sales tax and processing fees. Available at [https://events.ticketleap.com/tickets/profsandpints/nv-how-ai-alters](https://events.ticketleap.com/tickets/profsandpints/nv-how-ai-alters) .] Doctors who give bad advice can be sued for malpractice. Teachers belong to a profession with set standards. When artificial intelligence guides you, however, that guidance comes with a disclaimer: Use at your own risk. Every day millions of people take that risk, and usually AI seems genuinely helpful. But even if AI gives us good answers, might its use over time do bad things to how we think? Explore the relationship between AI and our own minds with Eli Alshanetsky, whose Cognitive Integrity Lab studies how artificial intelligence changes how we think, learn, and build trust. Author of *Articulating a Thought* and the upcoming book F*reedom of Thought in the Age of AI*, he’s on the cutting edge of efforts to answer AI-related questions such as: How can we tell when work is truly our own? How can technology support rather than replace authorship and reflection? What does trust mean when AI mediates our relationships with others and with our own thoughts? To set up his discussion of potential consequences of AI, he’ll describe how social media’s impact on society serves as a preview. Social media didn’t just give people what they wanted to click on, it actually changed what they regarded as click-worthy. It broke attention spans and fueled radicalization across millions of very different people. It left us with people who doom-scroll for hours, who can’t focus, who don’t know what to trust anymore. If you’d shown people this version of themselves ten years ago, would they have chosen it? Artificial intelligence is making a similar deal with us, but the stakes are higher. It isn’t chasing clicks. It’s optimized for giving you the most satisfying response to whatever is on your mind right now. The risk over time isn’t just that you’ll get lazy. More profoundly, even when you think hard, your sense of what counts as good thinking—as well as what sounds like you—will shift to match what AI has been feeding you. We’ll consider what kind of person this produces and whether this is someone we want to be or want children to become. Professor Alshanetsky will lay out a practical framework, which he calls “the interaction layer,” for using AI without letting it replace the thinking it’s supposed to support. He’ll also talk about what AI-related concerns should be the focus of parents and educators. (Doors: $17, or $15 with a student ID. Listed time is for doors. Talk starts 30 minutes later.) Image: Illustration by David S. Soriano / Creative Commons.

Francis Hutcheson (1694-1746) was a pivotal early figure of the Scottish Enlightenment, a movement which strongly embraced empiricism and concentrated on the study of human nature and the relationship of individuals and society. Born in Ireland to a line of Scottish Presbyterian ministers, Hutcheson was educated by dissenting Irish Presbyterians in Ulster before matriculating at the University of Glasgow, where he studied philosophy and theology. In 1719 he was licensed to preach in Ireland, but rather than adopting the more traditional views of his forefathers, he gravitated toward the tolerant and liberal “New Light” Presbyterianism. Instead of further pursuing the ministry for which he had trained, he put his efforts into founding a dissenting academy in Dublin—a successful venture that occupied him for the next ten years. While teaching in Dublin, he moved in intellectual circles, and it was there that he wrote the four early treatises—collected into two books, the *Inquiry* of 1725 and the *Essay* of 1728—that quickly established his reputation as a philosopher. On being appointed chair of moral philosophy at his alma mater, he left Ireland for Glasgow in 1729. Contemporaries described Hutcheson as a popular and animated professor—the first at Glasgow to deliver lectures in English rather than exclusively in Latin. His most famous student was Adam Smith (enrolled 1737-40). Hutcheson's influence on Scottish thinkers was considerable. With his emphasis on the primacy of feeling over reason in our moral perceptions, he inspired David Hume’s moral sentimentalism. His analysis of natural rights and property in the *Inquiry* (Treat. II Sect. VII) as well as in his later works directly influenced Smith. The Scottish school of common sense realism derived partly from Hutcheson's explication of moral sense theory. His influence also made its way to colonial America, where his works were included in college curricula beginning in the mid-1700s. John Adams and other signers of the Declaration of Independence are known to have read Hutcheson. In the *Inquiry*, he takes up Locke’s epistemology of sense perception and broadens it into a theory of the “internal senses”—faculties of perception as powerful as the commonly designated five external senses. Elaborating Lord Shaftesbury’s notion of a “moral sense” and the earl's analogy between beauty and virtue, Hutcheson divided his *Inquiry* into a discussion of the sense of beauty and of the paramount moral sense—both being internal senses which operate without depending on mediation by the will or reason. Like Shaftesbury and the philosopher Richard Cumberland, Hutcheson held a strong distaste for the Hobbesian worldview. In the vein of the former two, he promoted a vision of humans as naturally benevolent and innately interested in the welfare of others, maintaining that others’ good brings us no less pleasure than our own good. Notably, he also sowed the seeds of utilitarian thought with his phrase “the greatest happiness for the greatest numbers” (Treat. II Sect. III). **Main Reading** The reading below is available at the Online Library of Liberty: * The [Inquiry](https://oll.libertyfund.org/titles/leidhold-an-inquiry-into-the-original-of-our-ideas-of-beauty-and-virtue-1726-2004), comprising the first two of Hutcheson's four early treatises (we are reading the 1726, or 2nd edition, of the book): read the [Preface](https://oll.libertyfund.org/titles/leidhold-an-inquiry-into-the-original-of-our-ideas-of-beauty-and-virtue-1726-2004#lf1458_head_019) and Treat. I: Sections [I](https://oll.libertyfund.org/titles/leidhold-an-inquiry-into-the-original-of-our-ideas-of-beauty-and-virtue-1726-2004#lf1458_label_051), [II](https://oll.libertyfund.org/titles/leidhold-an-inquiry-into-the-original-of-our-ideas-of-beauty-and-virtue-1726-2004#lf1458_label_071), [III](https://oll.libertyfund.org/titles/leidhold-an-inquiry-into-the-original-of-our-ideas-of-beauty-and-virtue-1726-2004#lf1458_label_088) (Art. [IV](https://oll.libertyfund.org/titles/leidhold-an-inquiry-into-the-original-of-our-ideas-of-beauty-and-virtue-1726-2004#lf1458_label_101) is optional), ([V](https://oll.libertyfund.org/titles/leidhold-an-inquiry-into-the-original-of-our-ideas-of-beauty-and-virtue-1726-2004#lf1458_label_109) is optional), [VI](https://oll.libertyfund.org/titles/leidhold-an-inquiry-into-the-original-of-our-ideas-of-beauty-and-virtue-1726-2004#lf1458_label_137), [VII](https://oll.libertyfund.org/titles/leidhold-an-inquiry-into-the-original-of-our-ideas-of-beauty-and-virtue-1726-2004#lf1458_label_158), [VIII](https://oll.libertyfund.org/titles/leidhold-an-inquiry-into-the-original-of-our-ideas-of-beauty-and-virtue-1726-2004#lf1458_label_165); and Treat. II: [Intro](https://oll.libertyfund.org/titles/leidhold-an-inquiry-into-the-original-of-our-ideas-of-beauty-and-virtue-1726-2004#lf1458_head_032) and Sect. [I](https://oll.libertyfund.org/titles/leidhold-an-inquiry-into-the-original-of-our-ideas-of-beauty-and-virtue-1726-2004#lf1458_label_181), [II](https://oll.libertyfund.org/titles/leidhold-an-inquiry-into-the-original-of-our-ideas-of-beauty-and-virtue-1726-2004#lf1458_label_205), [III](https://oll.libertyfund.org/titles/leidhold-an-inquiry-into-the-original-of-our-ideas-of-beauty-and-virtue-1726-2004#lf1458_label_228) (Art. XI, XII until “Intention, foresight” optional), [IV](https://oll.libertyfund.org/titles/leidhold-an-inquiry-into-the-original-of-our-ideas-of-beauty-and-virtue-1726-2004#lf1458_label_258), [V](https://oll.libertyfund.org/titles/leidhold-an-inquiry-into-the-original-of-our-ideas-of-beauty-and-virtue-1726-2004#lf1458_label_275), [VI](https://oll.libertyfund.org/titles/leidhold-an-inquiry-into-the-original-of-our-ideas-of-beauty-and-virtue-1726-2004#lf1458_label_296), and especially [VII](https://oll.libertyfund.org/titles/leidhold-an-inquiry-into-the-original-of-our-ideas-of-beauty-and-virtue-1726-2004#lf1458_label_324). * Hutcheson's lecture upon his appointment at Glasgow, “[On the Natural Sociability of Mankind](https://oll.libertyfund.org/titles/hutcheson-logic-metaphysics-and-the-natural-sociability-of-mankind#lfHutcheson_head_238)." The first 3 paragraphs, until footnote 10, are optional. * The beginning of the fourth treatise [Illustrations](https://oll.libertyfund.org/titles/garrett-an-essay-on-the-nature-and-conduct-of-the-passions-and-affections-1742-2002#lf0150_label_230), Sect. [I](https://oll.libertyfund.org/titles/garrett-an-essay-on-the-nature-and-conduct-of-the-passions-and-affections-1742-2002#lf0150_head_019), and Sect. [IV](https://oll.libertyfund.org/titles/garrett-an-essay-on-the-nature-and-conduct-of-the-passions-and-affections-1742-2002#lf0150_label_296). Note that the ebook page on OLL can take a few moments to load. **Secondary resources** [IEP - Hutcheson](https://iep.utm.edu/hutcheso/) [SEP - Hutcheson](https://plato.stanford.edu/entries/hutcheson/) Liberty Fund: Editor’s [Intro to Inquiry](https://oll.libertyfund.org/pages/hutcheson-on-liberty-and-happiness). [SEP - Scottish 18th C. Philosophy](https://plato.stanford.edu/entries/scottish-18th/) [Wiki - Scottish Enlightenment](https://en.wikipedia.org/wiki/Scottish_Enlightenment) [Hutcheson and private property](https://www.adamsmithworks.org/documents/matson-hutcheson-property-virtue-march-2022) Routledge: [1](https://www.rep.routledge.com/articles/biographical/hutcheson-francis-1694-1746/v-1/sections/life-and-works-43333), [2](https://www.rep.routledge.com/articles/biographical/hutcheson-francis-1694-1746/v-1/sections/the-foundations-of-morality-and-the-moral-sense), [3](https://www.rep.routledge.com/articles/biographical/hutcheson-francis-1694-1746/v-1/sections/practical-ethics-and-influence)

Christians in Tech is a community at the intersection of faith and technology. Our meetups are designed to spark meaningful conversations, promote knowledge sharing, and encourage growth—both in your career and your spiritual walk with God. Whether you're an experienced professional or just starting your tech journey, CIT welcomes you. Our Website [https://linktr.ee/citcbus](https://linktr.ee/citcbus) Sponsors and Partners * Improving (Venue Sponsor) * Bethel World Prayer Center (Fiscal Sponsor) * Fruits & Roots (Coffee Partner)

Customer identity resolution becomes increasingly complex as organizations scale across multiple systems, regions, and data formats. Traditional rule-based approaches often fail to keep up with data variability, require constant manual tuning, and struggle with real-time processing needs. This session presents a practical approach to building a scalable identity resolution pipeline using AWS services and modern AI techniques. The architecture combines data ingestion through Amazon S3 and AWS Glue, transformation pipelines using Spark on EMR, and machine learning models deployed via SageMaker for entity matching and standardization. Graph-based relationship modeling is implemented using Amazon Neptune to improve resolution accuracy by incorporating household and shared attribute context. We will walk through how machine learning models can be used for name and address normalization, how intelligent blocking strategies improve matching efficiency, and how feedback loops can be introduced to continuously improve accuracy. The session also highlights how serverless components such as AWS Lambda can be used for orchestration and real-time processing. **SPEAKER BIO** Mosaic Syed is a Senior Data Engineering and Cloud Solutions Architect with over 20 years of experience designing and delivering scalable, secure, and high-performance data solutions across global enterprise environments. https://www.linkedin.com/in/mosaic-basha-syed-92300856 **CALL FOR SPEAKERS** Learn more: [https://www.awscolumbus.com/get-involved/](https://www.awscolumbus.com/get-involved/) **THANK YOU** *VEEAM* for hosting our meetup! To learn more about *Veeam*, please visit their website: [https://www.veeam.com/](https://www.veeam.com/) **DIRECTIONS** 8800 Lyra Dr #450 · Columbus, OH go to 4th floor. **Want to sponsor the pizza and/or bar tab?** Please contact me if you would like to sponsor this meetup's pizza and/or bar tab: angelo@mandato.com

We will show how to build custom agents with Microsoft Agent Framework. Attendees will learn how to build and custom host agents when Microsoft Foundry is not a viable option.

**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** TBD **YouTube Link** TBD

Join the Columbus AI community for our quarterly gathering — a casual, community-focused evening where everyone has a chance to share, learn, and connect. These open mic–style events give anyone in the community up to **5 minutes** to present a project, share a tool, pose a question, or offer a perspective on the evolving AI space. No slides required — just a welcoming space to exchange ideas and keep the local AI conversation moving. If you’d like to take the stage, message \*\*Chris (the organizer)\*\*with a **title and short description** of what you’d like to share. 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.linkedin.com/company/transformlabs/) Sign up also accessible via [Transform Labs Luma](https://luma.com/transformlabshq)

FREE event [https://www.ccad.edu/chroma](https://www.ccad.edu/chroma) Friday, May 15, 3–7 p.m. CCAD campus, 60 Cleveland Ave, Columbus, OH Join Columbus College of Art & Design for *2025* *Chroma: Best of CCAD*, our annual campuswide exhibition showcasing outstanding student work from across the college’s academic programs. This faculty-juried show features select work from CCAD students of all class years, and is a can’t-miss end-of-year campus celebration recognizing their tremendous achievements. It’ll be a night of fun and entertainment, with interactive games, animation and film screenings, art symposiums, poetry and prose readings, and more (along with some of the best local food trucks). *Chroma* is free and open to all. Many exhibitions including... **Game Art & Design:** **DSB, first floor, Welcome Center lobby and Room 115**

Bring your Raspberry Pi, Arduino, microcontroller, or any other electronic project and join fellow electronics makers for a night of creativity and collaboration! This session is open forum to share your current projects—whether complete or in progress, it’s all interesting! Whether you’re deep into embedded systems, exploring new ideas, or just getting started, you’ll find a welcoming space to collaborate, share, and get inspired. **New to electronics or curious about tinkering?** You’re absolutely welcome. If you’re a beginner and want to experiment, I’ll have a couple of starter kits available so you can try things out—whether that’s blinking your first LED, putting something on a display, or experimenting with simple sensors. No pressure and no experience required—just an interest in learning and building. While we continue to pursue a more permanent venue for this Meetup, we’ll be using public library facilities based on availability. This session will be at the Worthington Park Library in the Olentangy Meeting Room.