The Berlin meetup group is organizing the LessWrong Community Weekend 2015. From June 12th to 14th awesome people from all across Europe are coming to Berlin to meet, exchange ideas and start projects. The focus is on forming new and strengthening existing ties between our local communities. In addition to being a vibrant social event, it’s also about sharing your world-improvement projects as well as about teaching and learning valuable skills.

If you are already attending a local meetup, you might find this to be similar in the way it mixes a social event with workshops and talks. And if you don’t have a meetup nearby, this is a great opportunity to get in touch with the community.

Our 2014 event had an unexpectedly huge turnout. This time we have planned for a larger number of participants yet might still be underestimating the size of the community and its growth since last year. So sign up quickly if you want to be sure to get in.

Building on our experience and the feedback from the last event we are making this event even more awesome: The new location offers several seminar rooms for parallel workshops, activities and discussions in smaller groups. Combined with shorter and more efficient talks this leaves more space for structured social time and activities.

Participants are encouraged to share their knowledge in workshops, tutorials and talks as well as exchange experiences in informal settings. Featured topics include practical rationality, self improvement, world improvement and other rationality related areas.

Giving a workshop or talk is a great way to introduce yourself to other attendants and start a discussion about a topic you care about. If you're unsure if the topic is valuable or a good fit, please err on the side of including it! The more content offers we get, the easier it will be to create a balanced, yet diverse program.

Next to the talks, there is plenty of opportunity to get to know your fellow participants better in structured and less structured social settings. The chosen location provides many opportunities to spend off-time outside, whether you'd rather take a few companions on a morning hike in the nearby forest while discussing AI, receive a tutorial in proper stone-skipping technique at lake Wannsee or if you'd prefer a game of ultimate frisbee on the premises. Which specific activities will be offered during the weekend depends on the participants themselves, so make sure to tell us on the signup form if there's a skill you can share or an activity you'd like to offer.

The event begins on Friday June 12th, 12:00 with our shared lunch. Then we will move to our main location, Jugendherberge Berlin-Am Wannsee that provides us with seminar rooms and on-site accommodation (shared rooms, 4 beds) as well as access to the nearby lake and forest. The next days will be filled with workshops, talks, discussions and many other activities. We’ll say goodbye on Sunday June 14th at 15:00.

Costs are €150 including accommodation for two nights, the welcome reception and lunch on Friday and all the other meals till lunch on Sunday.

The European LW community is pretty scattered at the moment. This event is our chance to reach out and build lasting bonds and friendships across cities and borders. Are you looking for allies for your world-optimization plans, or for new methods to improve yourself and your model of the world? Do you want to teach others what you have learned? Or are you looking forward to a relaxing weekend around like-minded people?
The community weekend can offer all those things and more, and you can help make it the event that you want it to be!

Looking forward to seeing you
Alexander, Anne, Christian, John, Marcel, Matthias and Tristan


P.S.: If you have any questions about the event you can reach us at


Edit: 80 attendants have signed up, which means we have reached capacity! The signup has been closed.

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11 comments, sorted by Click to highlight new comments since: Today at 4:41 AM

I'd appreciate greatly if I could fill in the second part of the form at a later date, maybe ~3 months prior to the weekend.


Of course it will also be possible to offer contributing content at a later point. There will be an additional "call for papers" at a date closer to the actual event.


Excellent! Many thanks for this. Looking forward to it!

Me - and many others from the meetup in Vienna - already signed up. This - probably - will be super awesome. Looking forward to it!

What language will proceedings generally be conducted in? Alas, the only one I speak is English.

What language will proceedings generally be conducted in?

English, of course.

There'll be many international participants so the official proceedings and most informal discussion will be conducted in English.

There are now 45 people signed up (including me!) so this will already be the biggest LW meeting ever on the European mainland. However, there's space for a maximum of 80 people. And everyone I've talked to who attended the previous one agreed it was quite awesome!

Technically that wasn't correct at the time you wrote it (since there were 47 attendants at last year's LWCW), but we now certainly have enough to break that record!


Signed up. Out of curiosity, approximately how many places do you plan on offering altogether?

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