On that basis the model constructed here is just that: a model. Yet it provides a foundation on which you may engage with reality and act in coordination. There is no possibility the model is correct. No model can accurately describe reality. Perfection is a goal only because it provides a direction.
But it shall be on the seventh day, that he shall shave all his hair off his head and his beard and his eyebrows, even all his hair he shall shave off: and he shall wash his clothes, also he shall wash his flesh in water, and he shall be clean.Leviticus 14:9 KJV