A line left unfinished is not a failure of nerve. It is a door held open.

What do you do with a line?

One painter abandons it mid-stroke. One buries it under layer after layer. One bleaches it out of indigo denim. One sends it round with no way out. Four artists, four answers, and not one of them finishes the sentence.

Bringing together artists from across the African continent, Papytsho Mafolo, Hussein Salim, Pascal Konan and Aza Mansongi for Unfinished Lines, a participating exhibition in Nexus: SF/Bay Area Black Art Week.

Four artists whose lines have all been interrupted and rerouted — from Kinshasa by way of Brussels, from Khartoum by way of KwaZulu-Natal, from Abidjan, from Kinshasa by way of Douala. None of those journeys resolved. Each of these practices depends on that.

Which is why the exhibition belongs in this particular week. Nexus exists to build a bridge, and a bridge requires something on both banks. Unfinished Lines is the continent's side of that conversation — offered to the Bay Area not as a statement but as an invitation, four painters holding the line open and waiting to see what San Francisco does with it.