>The article is full of special pleading for the Celts being capable of making good copies, but refraining from doing so because they didn't ever feel like it and were permanently swept up by the abstract muse.

Some of the copies require as much effort as the originals though.

>This would also explain how Apollo was mostly hair - start engraving hair, get carried away, now coin is full of hair, cram a face in the remaining space.

That's silly, you could easily start over if ran out of space.