A cell is the basic unit of biology. It has to be multi-plicitous. And, also, redundant. In order to survive (and reproduce).
Biology points the way to a deeper understanding of mathematics, then. A unit shares a circle with a group, where, the most basic group is a circle. Any unit has to reproduce in order to survive, and survive in order to reproduce. This is a circular relationship.
Therefore, there is redundancy in nature, where humans code a human, and a group, in order to understand, the human, and the human’s relationship to ‘group.’ Zero and one is one and two. This is the basic nature (multiplicity and redundancy) of nature.