Man and Sin by Piet Schoonenberg (1964) 1.7BL
Summary of text [comment] pages 55 and 56
[Prior blogs discussing Pierre Teilhard de Chardin, offer another perspective on natural evil.
We humans participate in spontaneous orders on multiple levels. There are many opportunities to fail (that is, to slip back into the realm of possibility).
Evil for living entities (due to limitations and challenges) is intrinsic to biological spontaneous orders. However, the good of living (being in actuality) is necessarily greater.
Otherwise, failure and physical evil would not be considered deficiencies of good.]