My biggest issue with the simulation of things that i have not read that it will change ( please correct me if i'm wrong ) is the Tallings.
The description says "Contain in buildings or burry in rock to neutralize".
To me it sounds like if i build a containment room it will eventualy get neutralize becomming non toxic.
But instead of using the word "contain" wich would be the effects of just stuffing it into a stone room somewhere and walk away wisseling a random tune they use the word "neutralize" wich makes me think the Tallings would change into something else.
An idea would be if people make containment rooms for these... let em rest until they aged ( in time ) to then be recykled into something else.
It would add a whole branch of stuff to build and do with the byprodukt of smelting ingots.