Of course, we almost never reach this level of ignorance in practice, which makes this the type of abstract academic point that people all-too-characteristically have trouble with. The step of calculating the complexity of a hypothesis seems “automatic”, so much so that it’s easy to forget that there is a step there.
Did you mean “can’t”? Because “can” is my position (as illustrated in the dialogue!).
This exemplifies the point in my original comment: