> In MVC as it was originally understood, a model is a list of subscribers.
This doesn't seem to track with a cursory search on the history of MVC. See some of the older papers on this site by the creator of MVC: http://heim.ifi.uio.no/~trygver/themes/mvc/mvc-index.html
From 1979 (http://heim.ifi.uio.no/~trygver/1979/mvc-1/1979-05-MVC.pdf) (also alluded to in the linked article)
> A Model is an active representation of an abstraction in the form of data in a computing system
I don't see any description in terms of subscribers.