Swarms begin with vision but are sustained by communities of small groups banded together in the pursuit of vision. Dunbarâ's Number theorizes that at most you can have about 150 people in a tribe. I personally apply this by dividing my contacts into 4 groups: my 15, close 50, near 75, and tribe-150. Picking your closest 15 is an important part to sustaining your vision. Here are 7 ways that your close 15 will help you: See 7 WAYS COMMUNITY HELPS VISION
Swarms cannot be controlled: only guided. They do not always grow into precisely the shape you had in mind. Sometimes they must be pruned, and the pruning is painful.
Swarms are not very well known. Trying to understand who is “in” and who is “out” is a challenge when there are many different levels of “in.” Justin Long writes in Swarms are messy more about this problem.⋅