Morality as we know it evolved from physics plus starting conditions. When you say that physics is soluble but morality isn’t, I suppose you mean that the starting conditions are absent.
You need to know not just the starting conditions, but also the position where morality evolves. That position can theoretically have huge complexity.
You need to know not just the starting conditions, but also the position where morality evolves. That position can theoretically have huge complexity.