by Jean-Louis Gassée The limitations of algorithmic curation of news and culture has prompted a return to the use of actual humans to select, edit, and explain. Who knows, this might spread to another less traditional media: apps. When San Francisco’s de Young museum prepared its David Hockney exhibition a couple years ago, it didn't just randomly slap works on its walls, leaving visitors to guess at the stories behind the offerings. A group of curators (from the Latin taking care) decided which of the artist’s “monumental paintings, Photoshop portraits, digital films that track the changing seasons, vivid landscapes created using the iPad, as well as never-before-exhibited charcoal drawings and paintings completed in 2013 ” to show, in what order and grouping. And they added the all-important museography, words that introduced the show and explained each work, its origin, story, place in the context, with occasional comments about technique or aesthetic sensibility. Without these knowledgable and trustworthy curators (Hockney among them), the exhibition would have been far less