The discussion centers on the structural nature of acids in their solid state, specifically addressing whether all acids possess a covalent structure. It acknowledges that there are no substances that are purely covalent or purely ionic, highlighting that covalent bonds can exist, such as those between identical atoms like in O2. When acids are not dissolved in water, they are believed to have covalent bonds within the compound and exhibit intermolecular forces, including dipole-dipole interactions and hydrogen bonding, between molecules. This indicates a complex interplay of bonding types in solid acids.