That is a five star article that agrees with something I have been experiencing but did not know how to define.

Summary: We have moved from a past situation where an oral form of communication was predominant to one where a written form of communicatino was most predominant. In the most recent generation(s) we have moved or are moving back to an oral form of communication being predominant.

Persuasive Oral Arguments are considered as having higher value that well reasoned written arguments. An argument presented by an acknowledged respected (by that person) authority will be accepted without question, yet the same argument presented in written form will be ignored as it did not come from an accepted source or perhaps because it did not come in an accepted form (oral preferred over written).