I'd say copy protection, in the spirit of this particular article, still lives on in the type of copy protection applied to video content provided on optical me

I'd say copy protection, in the spirit of this particular article, still lives on in the type of copy protection applied to video content provided on optical media. Walled gardens, and the like, are really about server side retention of discrete copies, requiring a user to stream content by means of a continuous connection, or loading content onto a trusted (locked) system that the end user cannot (or rather, should not) directly control. They're different models of control, but both have been around for a while. With a walled garden model, you're visiting a restaurant and the food comes to you already prepared. With copy-protected content, you can buy and keep as many packets of instant food, and mix with water whenever you want, but you're prevented from understanding how to formulate the mix yourself from raw precursor ingredients, although no one can stop you from trying.