The intent of the entries in this thread is to explore. This means, to me, that there will be challenges, but probably no winners. Questions, but I hope no answers. Just what I'm intending to explore here will have to wait to be defined over time by an accumulation of contexts. These will be my personal contexts (this is, after all, a blog), but anyone should feel free to improve on these by adding their own. But I cannot promise that I will post and reply to all comments.