I think this refers to Nowak et al and I assume refers to the discussion mentioned in the Wikipedia article of the book (https://en.wikipedia.org/wiki/The_Selfi

I think this refers to Nowak et al and I assume refers to the discussion mentioned in the Wikipedia article of the book (https://en.wikipedia.org/wiki/The_Selfish_Gene#Units_of_selection https://en.wikipedia.org/wiki/The_Selfish_Gene#Units_of_sele...).