The objectivity of site relates to its a

I'll try to answer your question the way I understood it.

Objectivity is a lack of bias/prejudice towards an individual, an argument, an idea, etc. In literature, a character's "objectivity" makes them non-judgemental (which often has ties with charisma, empathy, and other good qualities).

dr eric sanderson is a character from the book "a world without us". acording to this story dr sanderson's goal is to determine what manhattan island was in the past, before it became a city. sanderson is an ecologist who is interested in the way manhattan looked like in the 17th century.