Skyler Austen, Shriram Krishnamurthi, Kathi FislerSPLASH Onward!, 2025AbstractUsers often struggle with cloud file-sharing applications. Problems appear to arise not only from interface flaws, but also from misunderstanding the underlying semantics of operations like linking, attaching, downloading, and editing. We argue that these difficulties echo long-standing challenges in understanding concepts in programming languages like aliasing, copying, and mutation. We begin to examine this connectio...