I wanted to let folks know that I’m working on the DES example (nee demonstration).
I’m currently doing it while I’m on the train every day, usually in the evening now that the fall season is starting up and iTunes is having my shows again 
But it’s slow, and some days I just feel like reading my book.
Anyway, each iteration takes ~3 half-sheets (I’m folding papers over and using half a sheet to write on, just because it gives me a contained space that’s easy to hold on to for writing). It looks like I can do 1.5-2 iterations a day at this point, but I’m only done with the 3rd iteration, so that may be over or under. The first iteration took a day, then I finished the next two in one day give or take, but the XORs are starting to get more complex … Hopefully will be done by the end of the month, then I’ll have to work on typing it all in. I want to get them posted in a row, though, so it’ll be a while before they start posting.
I did change the example some, however, so the old start is no longer relevant.