Sounds like somebody’s been boning up on their history of economic thought.
Just as a nice link reference in case anyone missed it, there was a great TED talk posted in the low content thread related to this.
Maybe I’m misreading this, but I don’t think those terms operate in the same framing. Calling something a “public good” means to differentiate it from other goods in terms of the nature of the good itself. It is in this framework that the attempt is made to treat these goods differently from others. Terms like “consumption” “capital” and the like are only meant to imply and give a name for goods that are utilized in a certain way. In other words, “public good” is a term given to goods that implies how they should be treated…whereas terms like “consumption good” are simply descriptive terms that can only really apply after the good is used…because of course, it is on the good owner himself to determine why it is we wants the good (i.e. what exactly he wants it for). For most people, a wrench is a capital good…something used to make other goods. But I know a couple of guys who have wrench collections…as in, entire sections of a wall that are simply used to display antique wrenches like artwork.