Computational Science and Engineering

[Profs and Pints DC](https://www.profsandpints.com/washingtondc) presents: **"Eugenics Then and Now,”** on a dangerous movement in science and its lessons for current research, with Carlo Quintanilla, molecular biologist and health science policy analyst at the Eunice Kennedy Shriver National Institute of Child Health and Human Development. [Advance tickets: $13.50 plus sales tax and processing fees. Available at [https://events.ticketleap.com/tickets/profsandpints/dc-eugenics](https://events.ticketleap.com/tickets/profsandpints/dc-eugenics) .] Global concerns about the return of eugenic thinking were reignited by Chinese scientist He Jiankui’s 2018 announcement of the first gene-edited babies, Lulu and Nana. He was quickly condemned by the scientific community and jailed for illegal medical practice, but he and others around the world continue experiments with goals echoing eugenic ambitions. As genetic technologies advance at extraordinary speed, society faces a new set of ethical questions about shaping the traits of future generations. Are we entering a new era of eugenics? If so, how should we respond? Hear such questions tackled by Carlo Quintanilla, who studied rare genetic mutations in human disease as a graduate research scientist and instructor at the University of Texas Southwestern Medical Center and now works at the intersection of genomic medicine, science, and society. Dr. Quintanilla will begin by discussing the origins and history of eugenics, tracing its development in the 19th and 20th centuries as an idea, a scientific movement, and a set of policies. He’ll examine the rise of Social Darwinism in the U.K., forced sterilization programs in the United States, and the atrocities committed by the Third Reich in the name of “racial hygiene.” From there, he’ll explore how our ability to shape human health and heredity have been transformed by modern reproductive and genetic technologies such as in vitro fertilization, prenatal and embryo screening, and genome editing. You’ll learn how these tools hold enormous promise when it comes to the prevention and cure of rare and debilitating genetic conditions, yet also raise profound questions related to their potential enablement of a new, technologically driven form of eugenics. Dr. Quintanilla will then delve into the ongoing debate among scientists, bioethicists, and policymakers over what should be classified as eugenics today. He’ll highlight recent controversial uses of genetic and reproductive technologies that are pushing ethical boundaries faster than society can define them, from embryo selection for traits like IQ and height to speculative military interest in genetically enhanced soldiers. These examples raise urgent questions: Where should society draw ethical boundaries? Who gets to decide? And is the term “eugenics” still useful for guiding policy and public debate? We’ll close by examining the social, political, and regulatory forces that will determine the future, considering whether they will restrain the push toward further genetic control or accelerate it. (Doors: $17, or $15 with a student ID. Listed time is for doors. Talk starts 30 minutes later.) Image: The frontispiece of the 1883 book *Inquiries into Human Faculty and Its Development,* by pioneering eugenicist Francis Galton (Wikimedia Commons / Metropolitan Museum of Art).

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. Enjoy a 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. METRO & PARKING INFO : The opening of the Herndon Metro Station made it very accessible. To get to the Restaurant, you just have to cross the street. Closest Metro Station is Herndon. Also, please take into account Metro's Weekend Track Work & Service Adjustments. Please check it on http://www.wmata.com/ and plan accordingly.

**Pre-registration is REQUIRED. RSVP here - [https://hubs.li/Q046VS--0](https://hubs.li/Q046VS--0)** **Speaker:** Michael Novack, Solutions Architect at AIceberg **Topic title:** "Trust What You Can Trace: Making Agentic AI Explainable, Secure, and Enterprise-Ready" As enterprises adopt increasingly powerful AI systems, one critical challenge remains: understanding how and why these systems make decisions. Many modern models - especially large language models - operate as opaque “black boxes,” making transparency, compliance, and trust difficult to achieve. *This webinar introduces the AI Explainability Scorecard, a practical framework for evaluating the transparency of AI systems based on criteria such as faithfulness, consistency, accessibility, and comprehensibility*. Attendees will learn how different model architectures - from K-Nearest Neighbors to neural networks and transformers - vary dramatically in explainability and risk. **The session will also explore real-world techniques for improving visibility into complex models, including surrogate monitoring approaches that map AI behavior to comparable examples.** These methods help organizations build observable, auditable AI systems without sacrificing performance or scalability. By the end of this session, attendees will understand how to move beyond black-box AI toward transparent, accountable, and secure AI deployment - a critical step for enterprises scaling agentic AI in high-stakes environments. You will learn: **\- Why Explainability Is the Foundation of Trustworthy AI** *Learn why transparency isn’t just a technical preference - it’s becoming a legal, ethical, and operational requirement for enterprise AI systems.* **\- The AI Explainability Scorecard Framework** *Understand the five key criteria - faithfulness, comprehensibility, consistency, accessibility, and optimization clarity - for evaluating how explainable an AI model truly is.* **\- How Different AI Models Compare in Transparency** *Discover why some models are inherently interpretable while others require advanced methods to understand their behavior.* **\- Practical Methods for Making Black\-Box AI Observable** *Explore modern techniques - including surrogate monitoring models - that help organizations understand and audit large language models at scale.* 🔗 Stay Connected * **Learn:** Free talks and trainings on the [Ai+ Training platform](https://aiplus.training/). * **Read:** The latest in AI research on the [ODSC Blog](https://opendatascience.com/). * **Chat:** Join the conversation in our [Slack Channel](https://www.google.com/search?q=https://odsc.com/slack). * **Community:** Review our [Code of Conduct](https://odsc.com/code-of-conduct/).

After hosting successful events, I always think that we could have done better and relate it to our day to day life and make it educational. In this connection, I wanted to show off my investment and trade hat and organize series of Happy Hours around Investment & Trade. We will have speakers from different sectors and industries, at each Happy Hour. At this particular event, the speaker will discusses Smart Strategies for Maximizing Social Security . Topics will include: 1. Today’s retirement challenges 2. Keys to help you understand the basics of Social Security, including when you should start taking benefits 3. Qualifications for retirement benefits and survivor benefits 4. Sources of income in retirement 5. Building an income plan. The address will be sent to members, who RSVPed, before the Event. Enjoy!

A Pathfinder Society Scenario designed for 9th- through 10th-level characters, playable in 2-3 hours. The self-proclaimed Runelord and newly minted venture-captain Zinthyra Tannol has finally gotten her lodge set up within Kaer Maga. The purpose is to explore a site beneath the City of Strangers that an Azlanti wizard sealed, and which hasn't been opened since. While Venture-Captain Tannol is an expert on all things Azlanti and Thassilonian, she does not know what lies beyond the door, nor why it was sealed. Thus it falls to some of the most experienced agents to explore this site and see what can be learned. Written by Bill Fischer

To secure your spot, purchase your ticket from the Eventbrite link (https://www.eventbrite.com/e/green-sustainable-energy-environment-virtual-hour-tickets-150586158253). RSVPing only on the Meetup page, doesn't allow you to attend the Event. ABOUT THE EVENT This Happy Hour is devoted to professionals in the Green, Sustainable Energy and Environment; to grow, interact, and learn from each other. It is designed to provide a professional environment to meet other professionals to broaden one's career. It is also for those interested in careers in the sector and are studying or intend to enter the dynamic world of green movement. HOW IT WORKS : We will try to assign Breakout Rooms for each represented INDUSTRIES AND SPECIALIZATIONS; and will direct attendees to their respective breakout rooms accordingly. All are welcome! However we don't guarantee the availability of a partner in that particular experience, you would like to exchange. Space is limited and advance ticket purchase is required. NOTES : 1. Sign up on Eventbrite for FREE . 2. When you purchase a FREE ticket, you will be emailed the Event ID and Password, on the day of the event. 4. As we try to make it a live event, you can't turn off your camera. 5. We have limited spots and RSVP at your earliest convenience. 6. Bring Your Own Beverage (BYOB - Alcoholic/Non-Alcoholic). **FOR FURTHER DETAIL, REFER THE EVENTBRITE LINK**. IT RULES.

Let's get together to play some fun BB level Quads games at Bluemont. **Format**: Doubles **COST**: FREE **Court Type**: Outdoor grass **Minimum Skill Requirements**: Intermediate-BB (click [here](https://docs.google.com/document/d/1PojSi4qdlRsv1msCHhvpQ43iDc4FfzQwpWCc3kafVMY/mobilebasic) for details) \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- **Smiley Social documents:** 1. [Group Rules ](https://docs.google.com/document/d/1HrG35p_0M08leRvCp8XWG3CMkr_GL928XFabl5T6Dvg) 1. [Liability Waiver ](https://docs.google.com/document/d/1W2mq-7m99lmvd7gdWYaSUFtvVg4UGnzV6koafAbHmco) 1. [Volleyball Levels](https://docs.google.com/document/d/1PojSi4qdlRsv1msCHhvpQ43iDc4FfzQwpWCc3kafVMY/)

Join PSW Science® on April 10 at 8 PM as we welcome Amy Mainzer, Professor of Earth, Planetary, and Space Sciences at the University of California, Los Angeles, and Principal Investigator for NASA’s NEO Surveyor mission. 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/

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/)

🍻 **Post-Event Happy Hour — Tech Fluent** 📅 April 10 \| 🕠 5:30 PM 📍 Gordon Ramsay Street Pizza After a full day of building, learning, and experimenting with AI, join us for a **casual happy hour** to unwind, connect, and keep the conversations going. This is open to: * Tech Fluent attendees * DC Legal Tech Meetup members * AI-curious professionals who just want to join for drinks + conversation No agenda — just good people, good pizza, and a chance to meet others exploring AI across legal, business, and beyond. *** 💡 **Why come?** * Meet others who are actually *doing* something with AI * Continue conversations from the workshop in a relaxed setting * Join even if you couldn’t attend the full event *** RSVP appreciated for the happy hour.

[Profs and Pints Northern Virginia](https://www.profsandpints.com/washingtondc) presents: **“The History of Plastic Surgery,”** with Dr. Wendy Chen, plastic, reconstructive, and hand surgeon and assistant professor at the Johns Hopkins School of Medicine. [Advance tickets: $13.50 plus sales tax and processing fees. Available at [https://events.ticketleap.com/tickets/profsandpints/nv-plastic-surgery](https://events.ticketleap.com/tickets/profsandpints/nv-plastic-surgery) .] Most people misunderstand plastic surgery as vain and aesthetic, but the origins of this fascinating specialty are much deeper than that. Come gain a rich understanding of the roots, medical impact, and current wide reach of a life-altering medical specialty with Dr. Wendy Chen, a leading educator on plastic and reconstructive surgery who has won awards for her work in clinical, basic science and education research. She’ll talk about how reconstructive surgery has been around for thousands of years, with evidence of it having been practiced in ancient Egypt and India, and has made advancements in the course of major wars. Those who practice it have been innovators in medicine, playing a major role in breakthroughs and winning the Nobel prize for kidney transplantation. The need for plastic and reconstructive surgery has stemmed largely from how much our appearance influences how we navigate our worlds and how others regard us. There was a time, in fact, when people in American prisons were offered plastic surgery as an intervention against recidivism. Yet reconstructive surgery also has faced opposition, such as religious bans on its practice stemming from the belief that physical differences are a manifestation of spiritual sin. Fast forward to now when plastic surgeons treat patients of every age for every kind of ailment, from congenital differences to trauma to cancer. Yes, some plastic and reconstructive surgery is to help people conform to tabloid- and social media-driven narratives of what defines beauty, but the field involves a lot more than injecting Botox and shaping buttocks. ( Doors: $17, or $15 with a student ID. Listed time is for doors. Talk starts 30 minutes later.) Image: Reconstructive facial surgery as illustrated by Jean Baptiste Marc Bourgery in the late 1840s (Wellcome Collection / public domain).

**April’s event will be the [FedGeoDay 2026](https://www.fedgeo.us/) Preview.** GeoDC’s guest speakers for the evening will be the FedGeoDay Organizers. We’ll look forward to learning more about the 2026 event (note the new venue!), hear about the hands-on workshops that will be offered on day two AND of course, they’ll be happy to answer any questions you may have prior to your registration for the event. * **6-7pm:** Happy Hour / Networking \*Sudhouse has great HH specials! * **7-830pm:** Announcements / Events /Jobs-Internships and FedGeo Day Preview Presentation Happy Spring and We look forward to seeing you next Wednesday at Sudhouse DC. If you're interested in presenting for the May GeoDC event, we've got a few spaces remaining. Please complete an [interest form](https://docs.google.com/forms/d/10Yj1-BOBXHqtoepJNW2X1WRzmdMjvbBPB8F5fgu5Lhk)

DC Code and Coffee is an inclusive, informal co-working session. It's community-led and community-run by devs, for devs. People of all skill levels attend. Whether you’re dev-curious, aspiring, or a professional developer, we’d love to have you! Come chat or learn to code on a Sunday afternoon with coffee and cool-inclusive people. Bring your laptop! We typically meet every month on the weekend. **Join our online community!** For all things Tech in DC and to get latest updates and tech events from the DMV area, join the [DCTech Slack](https://dctech.chat/). All DC Code & Coffee announcements are in the #dccodecoffee channel **How it works** Near the beginning of the event, we do an introduction circle. You say your name, what you can help others with, and what you would like help with. You can also share job opportunities. After the introduction circle, everything is self-organized.

AI can generate a thousand images in a minute. But can it make you feel something? Join us for a live panel exploring why immersive experiences and spatial storytelling matter more than ever, and what the XR age really looks like beyond the hype. Featuring voices from the World Bank, community-driven cultural XR, and filmmaking, this conversation cuts through the noise to ask: when content is cheap, what makes an experience valuable? Recorded live as an episode of Beyond the Byte before a studio audience. Come be part of the conversation. **Featured speakers:** * [Sophia Moshasha](https://www.linkedin.com/in/sophiamoshasha/)\, Interactive Media @ The World Bank \| XR & AI * [Ines Said](https://www.linkedin.com/in/inessaid/)\, XR Immersive Artist \| EE 30 Under 30 \| Lead XR Developer @ Froliq \| Founder @ Tanit XR **Location:** AWS Skills Center, 1550-G Crystal Dr, Arlington, VA 22202 **Drinks and Networking After:** Tacombi, 1550 Crystal Dr, Arlington, VA 22202 **Description:** Join us at AI Innovators Network for our upcoming meetup in the Mosaic, which is dedicated to exploring the latest trends in Artificial Intelligence. Whether you're an AI enthusiast, a professional, or someone curious about the intersection of technology and AI, this event is perfect for networking, learning, and sharing insights. Connect with like-minded individuals from DC, Northern Virginia, and Maryland as we dive deep into the opportunities and challenges of integrating AI. Don't miss this opportunity to be part of the conversation driving innovation and progress in Artificial Intelligence.

The global Azure community is coming together again, and Columbus is officially on the map. View the session lineup and speakers at [Global Azure Columbus 2026](https://coazure.github.io/cbus-global-azure-2026/) On **Saturday, April 18, 2026**, the Azure Columbus Meetup, DevOps Meetup, and Code and Coffee Meetup are hosting our local edition of Global Azure 2026. This is a free, community-driven event packed with learning, networking, and all things Microsoft Azure. Whether you’re building modern cloud-native apps, experimenting with AI agents, deploying containers, automating infrastructure, or just beginning your Azure journey, this event is for you! **What to Expect** * Engaging technical sessions * Real-world Azure architecture & cloud-native patterns * AI, agents, automation, and modern DevOps * Food and drinks (because learning burns calories) * Time to connect with fellow engineers, architects, and cloud enthusiasts **Who Should Attend?** * Software engineers (any language, any stack) * Cloud architects * DevOps engineers * Data professionals * AI explorers * Platform builders * Anyone who loves solving hard problems with great tools If you build, deploy, automate, scale, monitor, or optimize in Azure, you’ll feel right at home. **Why Global Azure?** Global Azure is a worldwide community event where Azure user groups host learning sessions on the same day across the globe. It’s grassroots. It’s technical. It’s practical. And it’s powered by people who genuinely love sharing what they’ve learned. And yes, it’s free to attend!

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)

**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

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!

The April Ohio North Database Training user group meeting will be held on **April 7th, 2026 at 5:00PM**. This will be a **HYBRID** event and we will be joined online by **Kayla Boor**. You're welcome to come meet in-person at our meeting location, the offices of Improving at **[6000 Freedom Square Dr,](https://www.google.com/maps/place/Improving/@41.4004167,-81.6614462,17z/data=!3m2!4b1!5s0x8830e5b8255c5919:0xd8297060eb68fe04!4m6!3m5!1s0x8830dc7a0fe35dc9:0xbfc4710ecadfc5c!8m2!3d41.4004127!4d-81.6588713!16s%2Fg%2F1hm3hkqp3?entry=ttu&g_ep=EgoyMDI1MDQzMC4xIKXMDSoASAFQAw%3D%3D)** **[Unit 110,](https://www.google.com/maps/place/Improving/@41.4004167,-81.6614462,17z/data=!3m2!4b1!5s0x8830e5b8255c5919:0xd8297060eb68fe04!4m6!3m5!1s0x8830dc7a0fe35dc9:0xbfc4710ecadfc5c!8m2!3d41.4004127!4d-81.6588713!16s%2Fg%2F1hm3hkqp3?entry=ttu&g_ep=EgoyMDI1MDQzMC4xIKXMDSoASAFQAw%3D%3D)** **[Independence, OH 44131](https://www.google.com/maps/place/Improving/@41.4004167,-81.6614462,17z/data=!3m2!4b1!5s0x8830e5b8255c5919:0xd8297060eb68fe04!4m6!3m5!1s0x8830dc7a0fe35dc9:0xbfc4710ecadfc5c!8m2!3d41.4004127!4d-81.6588713!16s%2Fg%2F1hm3hkqp3?entry=ttu&g_ep=EgoyMDI1MDQzMC4xIKXMDSoASAFQAw%3D%3D)** [Teams Link ](https://teams.microsoft.com/meet/22562814501129?p=w1cSxeUXFTVeIpZiMw)if anyone needs it after RSVP-ing for in person. If you would like to subscribe to our email list outside of Meetup, we have changed platforms recently and you will need to register [here in Kit ](https://ohio-north-data-training.kit.com/b8f036f615)instead to receive emails. Agenda: **5:00 PM EST**: Online and in-person meeting begins with a social hour. This is an unstructured hour where you can join us to catch up and meet other group members before the session starts. There will be food brought in for in-person attendees. **6:00 PM EST**: Elections, announcements, followed by our feature presentation. See below for presentation details. **7:30 PM EST**: Optionally after the main presentations, the in-person crowd may go out for snacks and drinks at a local establishment. We hope to see you there! Session Abstract **Accidental friends: How a DBA and an SRE worked together to optimize the system.** Are you receiving nonactionable alerts? Does your team have issues communicating with one another? This session explores real world experiences my team has faced the last several years. We will talk about why collaboration is important and how to collaborate more effectively. Attendees will leave with a better understanding of how to communicate with team members and be ready to make small changes daily that have a lasting impact over time. \*\*NEW SPEAKER \*Please note, that we will be using Microsoft Teams for the online portion of this meeting. You may want to join a few minutes early to ensure you do not have any issues. If you are attending in person, there are large TVs at the office, and you do not need to bring a laptop or use Teams.

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