This excellent story answered two unresolved questions in the past one century and two centuries. The first one is that water is colored or noncolored (Water as an Activator of Luminescence. Nature 1930, 125, 706-707)? If it is colorful, why and how does it emit the bright colors? The second question is on the physical origin of catalysis or catalyst, i.e., the mysterious internal force of catalysis is what, and how this powerful force determines the chemical reactivity, including activity, selectivity and life times (or stability of catalyst)? (A Brief History of Catalysis. CATTECH 2003, 7 (4), 130-138.)After reading this interesting story, both seemingly non-related two questions could be perfectly answered by topological excitation of singly hydrated hydroxide complex in confined sub-nanospace.