If you mapped every juggling club, every festival, every regular practice session that meets weekly in a park or a gym or a community centre - the map would have dots on every continent.
It would look impressive. It would represent something real.
But the map is not the practice. The map is what happens when you try to represent the practice as data. The practice itself is made of specific things: a prop passed between hands, a pattern attempted and failed, a person watching and learning, a conversation between people who would otherwise not be in the same room.
You cannot preserve a practice by mapping it. You preserve it by participating in it.
What the dots don’t show
Each dot on the map represents a community, which represents a set of people, which represents a practice that is currently alive.
What the map cannot show:
The age of the community - how long it has been gathering, which generation of jugglers is now running it. The original founders are usually long gone. The person who started the Tuesday night sessions fifteen years ago may have moved away. The community continues because someone else learned to care about it enough to keep it going.
The knowledge that lives in the community - not the documented tricks, but the tacit understanding of how to teach, how to run a session, how to welcome a beginner without making them feel watched. This knowledge was passed from person to person. It is not recorded anywhere. It is transmitted through participation.
The fragility - any dot on the map can disappear when the people who kept it alive stop coming. The community does not automatically persist. It persists because of decisions made repeatedly by people who have other options.
The problem with distributed knowledge
The global reach of the juggling community is real. There are practitioners everywhere.
But distributed practice has a specific vulnerability: the knowledge is in the nodes, not the connections.
When communication was primarily local, this didn’t matter much - knowledge that existed in Vienna’s juggling community stayed in Vienna, and Vienna’s jugglers didn’t need to coordinate with Tokyo’s. Each node developed independently.
Now that communication is global, there is an expectation that the knowledge should flow freely between the dots. Online tutorials, video databases, forums: these exist and they carry information.
But they carry explicit information. They carry the things that can be encoded in text and video.
What they cannot carry is the tacit dimension of the practice. The way a specific teacher adjusts their explanation based on how you are holding the prop. The community norm that newcomers do not need to ask for help because the offer will come to them. The particular rhythm of a specific juggling club that makes it easy to learn there.
Tacit knowledge requires co-presence to transfer. The global map of dots is not the same as a connected network of living practices. It is a record of where the dots exist. The network is made of the face-to-face connections inside each dot.
Why this matters beyond juggling
The same structure operates in any distributed community of practice.
Open-source development communities. Regional user groups for technical platforms. Craft communities. Academic research groups. Startup ecosystems.
Each of these has a global map - a record of where practitioners are located. Each of these also has specific nodes where the real knowledge lives, and those nodes are the ones that are genuinely active: the communities that meet regularly, the groups where practitioners watch each other work, the spaces where questions are asked aloud and answered with demonstrations.
The global map looks like connection. The actual network is much smaller. The knowledge that cannot be encoded travels only as far as the co-present communities that carry it.
This is not a criticism of the map. The map is useful. It shows you where to look. But it is easy to mistake the existence of the map for the existence of the network, and to conclude that because people everywhere are doing the thing, the practice is healthy everywhere.
The health of a practice is not measured by the number of dots. It is measured by the quality and continuity of what happens inside each dot.
The map shows you where the practice is. The practice itself requires you to be in one of the dots.
Investing in the specific place
The practical implication of this is local, not global.
If you want to support a community of practice - a juggling community, a technical community, a learning community of any kind - the most effective thing you can do is show up to the specific place where the practice happens.
Not follow the global accounts. Not subscribe to the newsletter. Show up to the Tuesday sessions, the annual festival, the weekly code review, the workshop. Be present in a way that is only possible in person, because that presence is what makes the tacit knowledge accessible and what maintains the community’s ability to transmit it.
The map shows you where the practice is. The practice itself requires you to be in one of the dots.
Pick a dot. Show up.
Related reading: The Gift of Beginning - on what it means to walk into a community as a newcomer, and what the brain does with that experience. Three Balls, Three Months - on what sustained practice actually changes, and why the practice has to be maintained.