As I said, it depends on what you consider part of the system. And over large time scales the randomness 'blurs' such that other factors become more significant

As I said, it depends on what you consider part of the system. And over large time scales the randomness 'blurs' such that other factors become more significant (e.g., your DNA is not a random sequence of nucleotides). Here is a question. Do you agree or disagree that survival/death decides which of nature's experiments work?