Less Wrong meetups (deprecated)

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Less Wrong members sometimes arrange meetups to meet each other in meat space. Some geographic areas have groups that do this regularly. This list also includes some virtual (online meetups), See Less_Wrong_meetup_groups#Virtual. Also see: Less Wrong meetup group resources.

A map of individual user locations is also available.



Albany, NY

Atlanta, GA

Austin, TX

Bay Area, CA


  • Meets every Friday evening at 7pm
  • Meetings are at the CFAR office, at 2030 Addison, 3rd floor, Berkeley
  • For meetup announcements, see the BayAreaLessWrong mailing list.

San Francisco

  • Re-started fairly recently (as of Feb. 2015)
  • Generally meetups happen on Mondays at 6pm; location varies
  • Meetups are announced on the bayarealesswrong list
  • Contact: rocurley or maia.

South Bay


  • Has not had a meet up in a while
  • Mailing list: lw-sf

Stanford\Palo Alto

Boston, MA

  • meetup.com group
  • Meets at 3:30pm on the 1st and 3rd Sunday of the month, at the Citadel rationalist house (98 Elm St Apt 1, Somerville, MA)

Buffalo, NY

  • meetup.com group
  • Meeting are usually on the 1st Sundays(2pm) and 3rd Monday(7pm) of every month at UB North Campus (31 Capen Hall) or Panera Bread on Elmwood (765 Elmwood Ave) respectively. Details are liable to change based on organizer's schedule. Visit meetup page for up to date information.
  • Also hosts game nights about once a month based on people's availability
  • Meetup location with parking info: map
  • Contact: Email Buffalo LW

Chicago, IL

Columbus, OH

  • Columbus Rationality is a very active group. We hold workshops every 1st, 3rd, and 5th Monday of the month, at 7:30 PM, at the HCCO conference room.
  • Meetup page (posted under HCCO umbrella): [1]
  • Facebook group: [2]
  • Contact: ITakeBets

Dallas / Fort Worth, TX

  • Meets every Sunday at 1 PM at America's Best Coffee in Arlington
  • Mailing list: [3]

Fort Lauderdale, FL

Coral Gables (Miami),Fl

  • Weekend Afternoons
  • Meetings are at [4] Starbucks, 1122 S Dixie Hwy, Coral Gables, Fl
  • Contact: Michael or text (305) 302- 6522

Washington, DC

Madison, WI

  • Meets every Sunday at 7pm, often in people's houses or in coffee shops
  • Mailing list: Madison mailing list

Minneapolis, MN

Mailing List: Minneapolis Mailing List

New York City, NY

The NYC meetup group is very large and meets frequently. The NYC community was profiled here as a case study. Please join the mailing list!

  • Weekly, Wednesday, 7:30-11pm, Most often Private Residence, but varies (check mailing list)
  • Self-improvement group meets every other Sunday, 3:30-5:30pm, Private Residence.
  • Mailing list: Main Google Group


  • Active groups in: Cincinnati, Columbus, and Cleveland.
  • Each active city has a meetup about once two weeks. Join mailing list for details!
  • Mailing lists: Less Wrong: Ohio, Less Wrong: Cleveland
  • Columbus LW is also known as Columbus Rationality, details of which are here.
  • Contacts: daenerys, or Raelifin(for Cleveland)

Phoenix, AZ

  • We meet irregularly on weekends at Hayden Library (In the middle of Arizona State University's Tempe Campus)
  • Contact: Danny_Hintze

Philadelphia, PA

Pittsburgh, PA

Portland, OR

  • October 2014: Next meeting is:
1:00pm on Saturday, 18th October, 2014
2945 NE 64th Ave, Portland, OR
This month: Teaching improv techniques. Last month's discussion mentioned that they might be useful as a tool toward personal behavior modification.
  • Meetups are planned for the 3rd Saturday of each month, at the same location and 1 PM.
  • Mailing list: LessWrong Portland

Research Triangle, NC (Raleigh/Durham/Chapel Hill)

  • Mailing list: Research Triangle Less Wrong
  • Durham LW meetups on the 1st, 3rd, and 5th Thursdays of every month, at Cocoa Cinnamon (420 W Geer St, Durham NC 27701) if the weather is nice, otherwise the location in the announcement.
  • Durham occasional HPMoR/etc discussion meetups on Saturday around 12:00 p.m. at Fullsteam (726 Rigsbee Av, Durham NC 27701)
  • Refer to the calendar for exact meetup dates.

Salt Lake City, UT

  • Google Group/mailing list: [5]
  • and Google Site: [6]

Socorro, NM

Southern California, CA

For help with transportation, check for carpool opportunities in meetup announcements and comments.

Los Angeles

Seattle, WA

  • Seattle Effective Altruists is highly active community and discusses and practices rationality (practical and epistemic), self improvement and doing good.
  • Meetup page
  • Meets about twice a month in Seattle; see group pages for details.
  • There is also a new weekly Sequences reading group, currently in Seattle at the UW on Mondays. See the EA Facebook group for postings. Event on 6 July 2015: Rationality Reading Group, 57-61.
  • LW Seattle mailing list (now mostly old): LW-Seattle.
  • Eastside meetups are happening on an ad-hoc schedule, see mailing list for details.

St Louis, MO


Toronto, ON

  • Organization: Check on meetup.com
  • Typical Venue: Libraries or people's homes
  • Schedule: Thursdays
  • Contact: Giles Edkins [7] or Tuxedage [8]

All meetups are announced and organized on meetup.com.


  • Time: Meetings aren't held on a regular schedule currently. Join the google group to find out about meeting times.
  • Mailing list: Waterloo Google Group


Previous meetups have included presentations on books and discussions on HPMOR.

  • Mailing list: Ottawa Google Group
  • Meetup.com site: Less Wrong Ottawa will no longer be advertised on Meetup.com, though related Ottawa Skeptics pub events will cover the same interest group. If you are interested in RSVP'ing for the LW meetups, you can send a private message to user Swimmer963.

Nova Scotia

  • Venue: Private residence
  • Contact: [9]


We meet every week, usually somewhere in Kitsilano or downtown.

We do most of our organizing on a mailing list: Vancouver Rationalists


Montreal Less Wrong meets up about once a week or so, on varying days of the week to accommodate as many people as possible. We do some structured content (CoZE exercises, de-bugging, other CfAR-inspired exercises) and some social meetups, the proportion depending on the group's interest at the time. The location and time varies; for information, message "bartimaeus" on Less Wrong or apply for membership to our Google Group named "Less Wrong Montreal".


Vienna, Austria

  • Facebook group[10]
  • Meets every month
  • Contact Ratcourse to be added to the mailing list

Brussels, Belgium

Brussels meetup group

Sofia, Bulgaria

Copenhagen, Denmark

Helsinki, Finland

Paris, France

Prague, Czech Republic

  • Contact kotrfa
  • Discussion and announcements at Facebook group
  • Schedule: (irregularly) every week (at least in 2015)

Berlin, Germany

Frankfurt/Mainz, Germany

Hamburg, Germany

  • Mailing list: [12]
  • Contact: [13]
  • Schedule: possibly bi-weekly, alternating Friday and Saturday/Sunday

Munich, Germany

  • Meetup announcements on Meetup.com
  • Discussion and announcements (partly in German) also in Facebook group.
  • Schedule: monthly (usually first weekend in the month, see announcements)

Budapest, Hungary

  • Venue: California Coffee Company Basilica (coffee shop), Szent Istvan ter 4-5. Link
  • Schedule: weekends, see mailing list.
  • Mailing list: BudLessWrong
  • Contact AlexeyM or katyusha

The Netherlands

Find us on meetup.com and The Facebook.

Warsaw, Poland

Kraków, Poland

Poznan, Poland

Moscow, Russia

If you want to start meet up group in another Russian city, feel free contact us, we will help with anything we can.

St. Petersburg, Russia

If you want to start meet up group in another Russian city, feel free contact us, we will help with anything we can.

Bratislava, Slovakia

London, UK

Cambridge, UK

  • Venue: JCR, Trinity College (Directions).
  • Schedule: 11am Sundays during University term time. Meetings during university vacations with irregular times and places -- join the mailing list to see when something's going to happen, or to suggest a meetup.
  • Mailing list: CambridgeLessWrong
  • Contact AlexeyM or Jonathan_Lee

Oxford, UK

  • Oxford Rationality Meetups
  • Venue: Exeter College
  • Schedule: Saturday termtimes - normally 6-8pm.
  • Contact Larks or AlexFlint for details.



  • Australia-wide online meetups approximately once per month (currently on a Sunday around the middle of the month). Announced on the Less Wrong site and on the Facebook groups for Sydney and Melbourne. Upcoming meetups in 2015 are unplanned but are roughly bi-monthly.


Brisbane has not yet had an in-person meetup but they are growing as a facebook group, when we have enough interest we will organise a meetup. Brisbane Facebook group


  • Structured meetups on the second Saturday and fourth Friday of the month from 6 pm.
    • Venue: Room N101 of the CSIT building: [16]


  • Rationality Dojos on the first Sunday of each month, held at Ross House in the city (unless otherwise announced through our usual channels).
  • Social Meetups on the third Friday night of each month, in the CBD.
  • We often organise impromptu social outings and excursions.

See our facebook group or mailing list for event details:



  • General meetup on the fourth Wednesday of the month. Will include a combination of social and rationality-improvement exercises.
  • Rationality dojo on the first Sunday of the month. Focused on rationality improvement talks and exercises.
  • Irregular social meetups (whenever we come up with a good excuse) usually a fortnight after the main meetups
  • contact elo
  • Sydney's Lesswrong wiki page

Facebook group: https://www.facebook.com/groups/lesswrongsydney/

New Zealand


  • Schedule: Every second Sunday
  • Venue: Usually a discussion room in James Hight library (University of Canterbury)

Middle East

Tel Aviv, Israel

  • Schedule: Once every two weeks
  • Venue: Usually Google Israel offices (Electra tower: Yigal Allon 98, Tel Aviv)
  • Mailing list for notification about each meeting: [19]
  • Mailing list for discussion: [20]
  • Facebook group: [21]

South America

Buenos Aires, Argentina



  • Schedule: Irregular
  • Venue: Irregular
  • Mailing list for notification about each meeting: [23]
  • Mailing list for discussion: [24]

Tokyo, Japan

There is currently not a meetup for Tokyo, Japan. There is a Facebook group with the intention to gage interest and create a meetup.


Australia mega-meetups

see Less_Wrong_meetup_groups#Australia

Online Study Hall

This is a 24/7 virtual co-working space open to all Lesswrongers. We have an active community of regulars and not-so-regulars from all continents, though the chat is most active during the European afternoon/evening.

The Study Hall is password-protected: The password is "lw".

Blog posts

See also