I didn't misunderstand anything. I read this in 2010 and just re-read it. The ext3 example is used exactly as I describe, to hand wave away "having a file syst

I didn't misunderstand anything. I read this in 2010 and just re-read it. The ext3 example is used exactly as I describe, to hand wave away "having a file system in a single file" as a criticism and just move on to talking about nitpicks with the Registry's implementation of a filesystem in a file, while ignoring that all of the problems with the registry spawn from the choice to have it be a filesystem in a file. This article is like going to a house that burned down and saying "well yes, the house burned down. But barns also burn down. Now see one problem is that the couch is a pile of ash and cinders. These materials do not make for a good couch. Better couches use foam and fabric."