Biological systems can be described via diff equations, e.g. neural cells can be analyzed with hodgkin-huxley type models and this can lead to bottom-up theorie

Biological systems can be described via diff equations, e.g. neural cells can be analyzed with hodgkin-huxley type models and this can lead to bottom-up theories of biological neural networks. ML is used to approximate other more complex processes but that doesn't mean that it s impossible