Complexity
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Frequently Asked Questions
Yes! Check out complexity events happening today here. These are in-person gatherings where you can meet fellow enthusiasts and participate in activities right now.
Discover all the complexity events taking place this week here. Plan ahead and join exciting meetups throughout the week.
Absolutely! Find complexity events near your location here. Connect with your local community and discover events within your area.
Complexity Events Today
Join in-person Complexity events happening right now
Mangia at Carfagna's!
Let's gather for lunch at Carfagna's followed by an optional stop in Carfagna's Market to check out the tastes and smells of Italy.
Carfagna's address is 1440 Gemini Pl, Columbus, OH 43240
Inaugural Meeting
Join the inaugural meeting of the Columbus Vintage Computing Club (CVCC)! Get to know others in the vintage computing space and get hands on time with a Commodore VIC-20 and various Palm Pilot PDAs!
We will use this time to get to know each other, share projects we've been working on and plan the future of the CVCC.
We'll be at the Hilliard Library in Meeting Room 2A at 6:00 PM - 8:00 PM
A Changed Mind, Columbus, Ohio
Always an overachiever, David Bayer didn't settle for being Number Two in just about anything. Whether a runaway entrepreneurial success as a teenager, the leading online director for Ducati with over $70 million in sales, or as an early mid-life crisis overachiever with at least three wildly self-destructive behavioral addictions, whatever David did, he did it wholeheartedly.
Not surprisingly then, when it came to facing his failures and determining his next course of action, David sought health and healing with the same full-strength effort he had previously used to bring about his own ruination. Seeking to learn from the best of the best, David's pursuit of tangible, practical, actual change from the mind and emotions, outward, brought a new passion--that of encouraging others to learn from his mistakes and to be able to strive after and achieve healing and success in their own lives.
We are reading *A Changed Mind*, by David Bayer, and can't wait to enjoy the group discussion on **Wednesday, March 4, 2026, 6:30 pm**, at **True Food Kitchen, Easton Town Center**. Come join us!
Get your tickets on [EventBrite](https://www.eventbrite.com/e/a-changed-mind-columbus-ohio-tickets-1978437853879)!
Check us out on [Facebook](https://www.facebook.com/events/1390625182655746)!
Fundamentals: by do Jung Ishu/ the art of fighting
We are a real world Martial arts group. \
Called DO JUNG ISHU (the art of fighting) \
Based off of Jeet kune do we just continued where Bruce Lee left off. \
We have been around a while. \
We are donation based.
Every week we get together and work technical skills and live pressure testing. \
Almost all of the instructors have been in everything from altercations in the real world to the ring and some still compete in the cage. \
If you want to take your skills up, improve your confidence, gain self defense skills, get in better shape, test yourself or just want to kill some time and possibly get hit a bit come on down. \
We will be located at 3923 N High St, Columbus, OH 43214 inside the whetstone rec center in the auditorium, upstairs in classroom B or outside in the grass between the playground and horseshoe area. our instructors are normally in a black and red art of fighting shirt \ if you can not find us call or text me at 6143570295
Saturday 1pm Wednesday 5:30pm
From Age 16 and up. attendees under the age of 18 must have a guardian with them. \
\
You must have a free leisure card for the rec center and must be registered for our class specifically .\
Wear workout clothing \
Bring a MOUTHPIECE! \
WE HAVE GLOVES. \
Hope to see you soon :-).\
We are run off of donations. \
let me know if you have any questions :)
Complexity Events This Week
Discover what is happening in the next few days
IxDA Chat ‘n Pancakes
Join membersrs of the Central Ohio UX and digital design community for a casual monthly breakfast.
Columbus Comedy Improv Meetup at Gresso's!
Whether you've never done improv before, or you've done it for so long you knew Del Close on a personal level, or anywhere in between, come join us! Swing by *Gresso's* for the **Columbus Improv Comedy Meetup** for some fun and games!
The idea behind improv is to create entire scenes from scratch based on a suggestion from the audience. This can be done in game form, like *Whose Line Is It Anyway*, *ComedySportz*, or *Wild 'n Out*; it could also be done to tell stories, like *Middleditch and Schwartz*. Our meetup, which is central Ohio's longest running (and free!) weekly comedy event, brings the games (and occasionally different forms) for you to play in a safe, supportive, and compassionate environment. Not only is it a lot of fun, but you get to work on thinking faster on your feet, plus it's an excellent way to meet new people and make friendships that'll last a lifetime!
Ask yourself if you want to join the **Columbus Improv Comedy Meetup**, and say "Yes, And" that you'll have fun!
Contra dance with Big Scioty on March 7 - First Congregational Church
**Caller: Frank Buschelmann**
**Band: The Rosenthorns**
**Big Scioty Contra Dance**
**temporarily returning to our long ago location for Jan-March - First Congregational Church, 444 E. Broad St., Columbus 43215**
WHAT IS CONTRA DANCING? Picture the Grand Ball scenes like you’ve seen in period films such as “Pride and Prejudice”, where the dancers are lined up in long lines, across from each other. That’s English Country Dancing, the predecessor of contra dancing. Now, add moves like “swing your partner” and “do-si-do,” like you’ve seen in square dancing. Set it to fabulous, high energy, live music with fiddles, guitars, percussion and more, alá “Riverdance.” Finally, set the whole scene down in the middle of Woodstock, with a hip, groovy atmosphere, a bit of tie-dye, and hints of counter-culture attitude. THAT’s Contra Dancing!
Wear cool and comfortable clothes (you will get warm) and clean shoes that won't mark up our nice wood floor.
Be sure to come for the beginner's lesson from 7:30 - 8:00, followed by dancing 8:00 - 10:30. All dances are taught; we will help you learn! Beginners always welcome, no need to bring a partner.
Cost is $10.00 adults, $5.00 ages 12-26. Under 12 free. Free parking in church lot.
For more information contact me or check out our website: [www.bigscioty.com](http://www.bigscioty.com/)
Please bring your own refillable water bottle. Snacks to share are always welcome!
Free Class: Composting 101
Hosted by Licking Parks District
Backyard Conservation: Composting 101
Thursday,
March 5, 2026
Join us to learn how to create nutrient-rich compost right at home! Whether you have a small garden, a backyard, or just a few potted plants, this program is perfect for anyone interested in reducing waste and boosting soil health. We will go over what compost is and how to use it, what can and cannot be composted, when to turn and water your compost, and troubleshooting!
Free.
[Register by March 1. Click here ](https://www.lickingparkdistrict.com/267/March-2026)
6PM - 7PM
Location: James Bradley Center, Infirmary Mound Park
DoJo (Informal Python Meeting)
**New Dojo Location!**
**Draft Day Columbus**
1130 Dublin Road
Columbus, OH 43215
We're going to try a new dojo location for a few weeks and see how it works
Dojos are informal Python group study sessions where everyone interested in Python gathers to learn about Python, help others with Python, or just hang out. Everyone is welcome from Python beginners to experts. Bringing a laptop is encouraged (we'll have extension cords and power strips). If there's something you want to learn leave a comment on this invite so we can plan ahead.
We're looking for topic suggestions and people interested in presenting at our monthly meetings. To this end we've set up a survey form at [https://docs.google.com/forms/d/15eBKF1nQQ2XS5gzD4rvhVRHMBEj7lJtHuA9wXupS3Uc](https://docs.google.com/forms/d/15eBKF1nQQ2XS5gzD4rvhVRHMBEj7lJtHuA9wXupS3Uc)
COUNT Discussion Meeting: Topic: Current Events
We may pick a specific topic and post in advance or may discuss current events and various ad hoc topics . We would love to spend time hanging out and getting to know one another.
Atheist, agnostics, other non-theists, and atheist-friendly people are welcome to join us.
Note: COUNT operates a Facebook page at www.facebook.com/groups/COUNT.discussions (http://www.facebook.com/groups/COUNT.discussions/) to promote discussions among members and visitors.
Agile Coaching Circle -- IN-PERSON
Join other experienced and aspiring agile coaches and professionals to:
* develop and practice your coaching skills in a peer-to-peer environment
* share current successes and challenges in your work environment and get support from each other
* learn from each other, build better relationships and experiment with new ideas
Complexity Events Near You
Connect with your local Complexity community
NFT AI ART Columbus
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.
Columbus Comedy Improv Meetup at Gresso's!
Whether you've never done improv before, or you've done it for so long you knew Del Close on a personal level, or anywhere in between, come join us! Swing by *Gresso's* for the **Columbus Improv Comedy Meetup** for some fun and games!
The idea behind improv is to create entire scenes from scratch based on a suggestion from the audience. This can be done in game form, like *Whose Line Is It Anyway*, *ComedySportz*, or *Wild 'n Out*; it could also be done to tell stories, like *Middleditch and Schwartz*. Our meetup, which is central Ohio's longest running (and free!) weekly comedy event, brings the games (and occasionally different forms) for you to play in a safe, supportive, and compassionate environment. Not only is it a lot of fun, but you get to work on thinking faster on your feet, plus it's an excellent way to meet new people and make friendships that'll last a lifetime!
Ask yourself if you want to join the **Columbus Improv Comedy Meetup**, and say "Yes, And" that you'll have fun!
Sunday Brunch
Sleep in on Sundays. When you've had your fill of pajama-time, roll out and have some tasty brunch with your fellow Humanists!
Spring Flex Season
**How does a TennisColumbus Season / League run?**
The league advertises the season dates and builds a queue of committed players for the season.
**Kickoff Day - March 26th**
The start day of the season, players are sent a kickoff email that contains important information about the league, the link where your league standings and players contact information. We guarantee 6 playing partners at your playing level, but have been averaging closer to 15+ partners in most cities. The number of different levels we run is solely based upon the number of players enrolled for the league kickoff. Typically we are running a Skilled-3.0, Competitive-3.5 and Advanced-4.0 in most cities.
**Your Task - "Flexible Scheduling"**
After this kickoff email is sent, it is the **player's task to communicate with other players**. Players should work with their partners to find an agreeable time and location to play the match. While TennisColumbus doesn't mandate your playing schedule, it is recommended that players schedule at least one match per week. By request of the players, we started to allow players to play 1 rematch per season. The regular season is all about playing as much as you can. As of Feb. 10, 2026 we've had an amazing 2,017 players play more than [20 matches in a season](https://www.tenniscolumbus.com/info/MatchesInSeason).
**Where to Play?**
Play at your local free tennis courts, tennis parks, condo courts or tennis clubs. The league strongly suggests that players jointly try to pick a tennis court location convenient to both. We provide an extensive list of [tennis courts](https://www.tenniscolumbus.com/TennisCourts), including # of courts, lighting, hitting walls, etc. We strive to keep this list up-to-date.
TennisColumbus sets up a must play dates to push players out on the courts. The final deadline is the date marking the end of the season, at which point players with 3-5 wins (Actually total is specified on the division page) will qualify for a post-season playoff to determine the league champion.
**How to Play?**
Players can use three mostly standard playing formats: 2 out of 3 sets, 2 sets with 10 point super tie-breaker or the 10-game pro set (First to 10, used when court time is limited). On Feb. 2018, we added Fast Tennis 4 game pro set format as a valid format.
**Playoffs**
Each season concludes with a playoffs where players with anywhere from 3 to 5 season wins qualifies for a single elimination tourney. The champion is awarded based upon the league [Prize Pool](https://www.tenniscolumbus.com/info/prize_pool3). Each singles league champion also receives a playing entry into one of two national championships we run.
**[JOIN TODAY](https://www.tenniscolumbus.com/join)**
Full price is $39.95 to play in a season. The earlier you sign up we typically offer discounts during these tough economic times. Just go to the [Join Page](https://www.tenniscolumbus.com/join) and complete the short form. We'd be happy to find you dedicated tennis playing partners.
BeComing Circle Initiates
http://photos2.meetupstatic.com/photos/event/2/a/9/6/600_348310902.jpeg
Instructor - Crow, HPS
Class fee is $30 at the door or approved exchange
RSVP with Advance pay of $25 (discounted) by PayPal on the web or by contacting Enchanted Elements (614) 437-2642.
Reservations made directly to Enchanted Elements will be added to the class list manually not online.
Private Instruction ~ Closed to the Public ~ Initiated Members Only
Please come prepared for ritual.
Blessings ~ Crow
Psychic Development Series II - Pueo Group
Private Group. Closed to the Public
Knowing ourselves and understanding our abilities is the first step toward wielding our gifts with control and accuracy.
In subsequent classes we will verify and hone our talents with activities and discussion. These are hands-on workshops and participation is expected.
The goal of our series will be to develop expertise in areas of particular interest such as mediumship, channeling, divination, healing and, etc.. Our ultimate directions will be determined by class members as we evolve.
I look forward to sharing and discovering with you. - Cynthia
CBusData - Discover the Power of Window Functions
Window functions have nothing to do with the Windows operating system but provide a “window” to a result set when used in SQL queries. They are powerful, set-based methods to view data in unexpected ways. Window functions provide easy, set-based solutions to solve some common problems:
* Using running totals
* Performing operations in intervals
* Identifying data gaps and islands
* Performing aggregates without losing detail
Many people are confused by window functions and do not know how to use them properly. This session will explore window functions, how they work, and how to use them. Demonstrations with several examples will solidify how window functions can simplify queries and make them more powerful.





























