It's extremely difficult to say what one actually means by 'sculpture' other than, in a provisional sense, it's something that goes on the floor or a pedestal, and loosely applies to a certain history of the use of that term.
This quote highlights the fluidity and ambiguity inherent in defining art forms like sculpture. It suggests that the boundaries are not fixed but evolve over time and are subject to interpretation. The idea that sculpture is confined to certain locations, like floors or pedestals, perhaps reflects traditional display conventions, yet the mention of a 'provisional sense' underscores how these conventions are constantly reexamined. It invites us to think critically about artistic categories and how context and history influence our understanding of what constitutes sculpture.