Do neural networks come to existence by random combinations of atoms? We're not discussing how things act intelligently, but rather why, what's the origin of t

Do neural networks come to existence by random combinations of atoms? We're not discussing how things act intelligently, but rather why, what's the origin of the intelligence in the process. Some argue there's no intelligence, it's just randomness. Others think this is not a rationally acceptable explanation for what nature is showing us.