[derangedHorse]

> such as the internal representations and computational processes of these systems

We know the representation (weights) and the computational processes, but we don't know the "why" behind the convergence of the model to a particular structure within that framework

[jcattle]

I think a more higher level "internal representation" was meant. The internal representation of knowledge.

Sure we know that a model stores weights. We also know that a neuron transmits electric pulses. That doesn't mean that we know how knowledge is represented in our brain.