Groups can reason better than their best member, under conditions. The research that made that claim famous has had a harder decade than its citation count suggests.
Picture the form rather than the word. A difficult matter has come up — a dispute, a decision that will cost somebody something, a question with no obvious answer. Nobody rules on it. Instead people sit, and it gets talked through, and the talking continues past the point where a meeting would normally have produced a decision, until something emerges that most of the room can live with.
That is what an indaba is, and the word is ordinary rather than esoteric — in isiZulu and isiXhosa it means a matter or affair, and by extension the gathering at which such a matter is discussed. Closer to “business” than to anything ceremonial.
The word has been borrowed into South African English, and into international diplomacy — it was used for a negotiating format at the UN climate talks, which is either a compliment or another instance of the extraction problem depending on how you look at it.
The underlying conviction, as it is usually described: that a hard question is better held by a circle than handed to whoever is cleverest.
The research everyone cites here is the collective intelligence work: the claim that groups have a general ability factor, analogous to individual intelligence, that predicts performance across tasks and is associated with equal turn-taking and social sensitivity rather than with average member IQ.3
It is a genuinely interesting result and it has not had an easy time since. Later work has struggled to reproduce the factor cleanly, and the social-sensitivity measure it leans on has its own validity problems. Reviews since have been considerably more cautious than the original coverage. I would not present it as established.
What is sturdier is less exciting. Groups outperform individuals on some kinds of task and underperform on others, fairly predictably: they are better where errors are checkable and worse where confidence is contagious. Diverse perspectives help on problems with multiple approaches.6 And psychological safety — whether people can say the inconvenient thing — is one of the better-supported predictors of whether a group actually uses what its members know.7
So the case for the circle is real and narrower than the popular version: not that groups are wise, but that a group in which everyone can speak makes better use of what it already contains.
Deliberation until something shared emerges is slow, and slowness is a real cost rather than a virtue to be reframed.
It also has a pressure built into it. A process aimed at consensus makes the persistent dissenter into an obstacle, and the pressure to converge falls hardest on whoever has least standing in the room. “We talked until we agreed” and “we talked until the people with less power stopped objecting” produce identical minutes.
And the traditional versions of communal deliberation were not open to everyone. Who spoke at such gatherings, and who did not, was structured by age, gender and status. Presenting the practice as a model of inclusive reasoning without saying that is a romanticization.
The usable version: bring the question to a group where people can actually speak, watch for convergence that is really deference, and keep a way to decide when consensus does not arrive.
Note — who spoke at the gathering
Traditional communal deliberation was structured by age, gender and status. Presenting it as a model of inclusive reasoning without saying so is a romanticization, and the same pressure operates in any modern consensus process.
Everything here reduces to one condition, which is a design problem rather than a matter of attitude.
Ubuntu is a living idea belonging to living peoples, not a closed corpus, and the terms used here come from several distinct languages — Nguni (isiZulu, isiXhosa), Sotho-Tswana and others. Where a word is an ordinary word in its language rather than a technical term, the essay says so; where a phrase’s provenance is uncertain or its popular gloss is a later Western elaboration, the essay says that too. African scholarship on ubuntu is cited in preference to Western commentary wherever it bears on the point. Links are given where a stable public page exists.
The collective-intelligence finding that made this case famous has had a hard decade. What holds up is narrower: a group where people can actually say the inconvenient thing makes better use of what it already knows.
And consensus has a pressure built in. Convergence and deference look identical from outside, and traditional gatherings were structured by age, gender and status rather than open to all.