This post breaks with the usual pattern here. Instead of a stand-alone essay, this link. Instead of vaporous ruminations, a direct series of statements. Instead of private musings, someone else's charts and graphs.
Two main reasons for this: motive and opportunity. I've been focusing on my new project, Boats for Difficult Times, and getting my reinvigorated Antonio Dias Design site up and running. This has taken the peace and quiet needed for the kind of writing usually found here. Finding this presentation, a fine explication of the "map" around which so much of what we get into here revolves, was too good to pass up.
There's a lot there, I hope you find it illuminating. If it sparks any questions or discussion, I hope you'll post comments here as well as on their own their site.