Organising knowledge requires a conceptual tree of information, not a chain.The structure of a concept is complex, not linear. Presenting knowledge in a linear fashion limits the ability of an audience to process this structure and therefore limits understanding. Linkage between parts of the structure are harder to perceive when presented in a strictly linear fashion. This is one reason why standard presentations deliver information rather than learning.
The majority of presentations are simply a linear series of rough lumps of data, joined only by their delivery. The presenters role is to make multiple connections amongst the pieces and deliver understanding. This is by construction of a “so what” rather than simply delivery of the “what”.