It is interesting that in the book that you mentioned and in your writing there is an underlying assumption that life originated on Earth from scratch. There are scientists that believe that life could have been introduced by outsiders, see for example this article by Rhawn Joseph. There is also the Drake equation used to estimate the number of extraterrestrial civilizations. There are NASA missions, like TESS, discovering more and more planets with Earth-like conditions.
Life on Earth could be an experiment set up by some advanced civilization biological origins of which might be entirely different from ours.
It is interesting that in the book that you mentioned and in your writing there is an underlying assumption that life originated on Earth from scratch. There are scientists that believe that life could have been introduced by outsiders, see for example this article by Rhawn Joseph. There is also the Drake equation used to estimate the number of extraterrestrial civilizations. There are NASA missions, like TESS, discovering more and more planets with Earth-like conditions.
Life on Earth could be an experiment set up by some advanced civilization biological origins of which might be entirely different from ours.
Does that matter that much? The life had to originate somewhere and it, presumably, must have faced the same coordination problems along the way.