Question

How do these excerpts from Dr. Tyson's interview and the preface differ?

Answer 1

Dr. Tyson's interview is not well-organized, while his preface is clearly organized so the reader can easily understand it.

Answer 2

The language  and the  accuracy of the information are different.

The language in the preface is more formal than the language in the interview. For example, "...that kind of makes sense.." in the interview is informal. What does "that" refer to? It is not specified. Then, " kind of.." is a colloquial expression. Then, " ..the international Astronomical...., they took a vote.." is too informal. Besides, the text does not explain why the IAU had to organise a vote. This is explained in the preface: "..when..... (IAU) prompted  by......, brought Pluto's planethood to a vote..".  This is another example of informal language and unclear information in the interview: "...and basically they said Pluto had to be reclassified..";  Who are they? the voters or the IAU?. Besides, the classification is not clear. This is clarified in the preface,' "..Plato was downgraded......... "dwarf planet",..'.  Besides, the preface uses formal language many  times: " prompted by pressure.."; "..brought Pluto's planethood to a vote.."; "..downgraded.."; "..thereby.." and " ..diffuse.."