How are people learning to make chimeras when the creator of the lore himself hasn't been actively teaching? Is it just another self-teachable magic now?
There are books with information about it and any alchemist could essentially experiment with it until they get something of it. Same way homunculi are made, mostly by accident in the beginning
It doesn't make sense to me. If people are learning something that's meant to be extremely advanced through "trial and error" and books, shouldn't this self-teaching of advanced alchemy apply to nearly all magics then?