> The universe evolves exactly under physical laws

Has this been confirmed already? Seems like the 'laws' we know are just an approximation of reality. 2) if none external intervention has been detected it doesn't mean there was none.

Fine details. We are talking about NN model vs algorithm. Both are approximation, and in practice model can fill the gaps in data that algorithm cannon, or does not by default. Good example would be image scaling with in-painting for scratches and damaged parts.