Tee hee. Yes, that's what I meant.
There's a few mods that have some form of carbon steel -- iron plus carbon (coal/charcoal) plus high temperature -- with railcraft one of the more well-known versions. And Reika introduced me to the existence of the higher quality, better regulated HSLA steel.
I mean, if we play games to get away from the hassle of real life, why bring the hassle of real life chemistry/metallurgy into Minecraft?
Hmm, gee, why have ATG or BWG for more realistic ground, or Geologica or Sweden University's new ground ore mod for more realistic ground content, or Galactic Craft for "realistic" space flight (hey, as realistic as KSP, right?
, or forestry/binnies for realistic genetics, or ...
If there's one thing I can say, it's scale. Something that takes 5 years of real life should be doable in a lot less than 5 years of gameplay. Minecraft has roughly a 72 times scaling factor overall (time is 72 times; distance ... varies
. If radiation is going to take decades of playtime to go away, that's too long. (... and, that's probably the only reason I don't plan to use a nuke reactor mod).
It all gets back to the basics: "Gee Ferb, what do you want to build today?".