“We crave the handmade, the from-scratch, the traditional, the folk,” Joshua Habgood-Coote, a philosophy lecturer, writes. “We dream of old forms of skilled work.” Nostalgia can be a toxic impulse, reactionary and uncritical, but it can also hold revolutionary potential for the future. Habgood-Coote gives an entertaining tour of “skill nostalgia,” touching on craft books and viral hobbies that hav...