“Slightly shattered shards of substance thrown within the grasp of the current of a river / Ligeramente dañados pedazos de sustancia arrojados a la merced de la corriente de un río”: you read Lawrence Weiner’s writing in English and Spanish splattered across a wall as the flow of humans drags you through the endless booths of the art fair. (Was it Galería Horrach Moya from Palma de Mallorca? The tide moved too quickly to catch it.) You’re not sure if you’re the shards or the art is or you both are, but you know that the river is ARCOmadrid 2019. Spain’s biggest art fair has distinctive qualities. The giant convention center simultaneously hosts an air-conditioning convention, a huge concentration of Latin American galleries, planeloads of VIPs flown in for private conferences, along with a scatter of curated sections trying to find distinctive voices amongst the glut all the other fairs. Frieze LA last week, Armory next. Into the limestone bench of RAPTURE (2017), Jenny Holzer carved “Rapture Screamed Toward the Clouds.” The poetic clarity and political force of Hauser & Wirth’s booth, dedicated to a survey of over 30 years of the artist’s work, set a mood. In MOVE (2015), …