Even those who want to embrace an idea of absolutes generally agree that any attempt to describe them is at best fuzzy. We recognize that the observer is a part of the observation and that different observers and knowledge structures exist. We can also recognize that dualities are tools not solutions. And uncertainty does not mean absence knowledge. Perceptions and ideas about identity in relation to social and ontological concepts may be informed by contrasts such as human and environment, individual and universe, or nodule and network.
Contrasts are a fundamental aspect of our ability to perceive and make sense of things.
Designating or identifying perceived or imagined extremes serve to arrange a spectrum of variations between them. Self and other give us a spectrum to identify elements of community or social structures. True and false name basic oppositions in logic and science. In ethics, good and bad can be useful. But classic isolation of conflicting and competing oppositions may be replaced by different ideas and traditions where oppositions represent a spectrum of interconnected relationships not a war between extremes.