Fig. 8.5 mentions “brown line” for b) but line appears to be black.

I see, thanks! This seems like a great resource. Thank you for making it available. I’ll post any further questions here, unless GitHub is the preference.

As a novice, I’m not understanding why the test loss continues to increase— in general, but also in Fig. 8.2b, if anyone can explain… The model continues to update and (over)fit throughout testing? I thought it was static after training. And the testing batch is always the same size as the training batch? And they don’t occur simultaneously, right? So the test plot is only generated after the training plot.