Finding nourishment vs. identifying poison An Article by Austin Kleon & Olivia Laing austinkleon.com A useful analogy for what [Sedgwick] calls ‘reparative reading’ is to be fundamentally more invested in finding nourishment than identifying poison. This doesn’t mean being naive or undeceived, unaware of crisis or undamaged by oppression. What it does mean is being driven to find or invent something new and sustaining out of inimical environments. I would like to adopt that line as a mission statement: “To be fundamentally more invested in finding nourishment rather than identify poison.” Because you can identify all the poison you want, but if you don’t find nourishment, you’ll starve to death. Poison sniffers hopereadinggoodness
Wang tiles Wang tiles (Hao Wang, 1961) are a class of formal systems. They are modelled visually by square tiles with a color on each side. A set of such tiles is selected, and copies of the tiles are arranged side by side with matching colors, without rotating or reflecting them. The basic question about a set of Wang tiles is whether it can tile the plane or not, i.e., whether an entire infinite plane can be filled this way. The next question is whether this can be done in a periodic pattern. In 1966, Wang's student Robert Berger solved the problem in the negative. He proved that no algorithm for the problem can exist, by showing how to translate any Turing machine into a set of Wang tiles that tiles the plane if and only if the Turing machine does not halt. The undecidability of the halting problem then implies the undecidability of Wang's tiling problem. Wikipedia en.wikipedia.org Truchet TilesThe Tiling Patterns of Sebastien Truchet and the Topology of Structural Hierarchy mathalgorithms