As far as i know, the nature/industrial belief effects your productivity in those areas depending on how much you add to the scale, like Nature-aligned hearthlings have better luck overall with unraveling Silk Cocoons, whilst Industrial hearthlings have a field day at the forge as they produce out wrought iron after wrought iron from blooms...
However, i want to know EXACTLY what parts the belief slider influences, like for example, will a Nature hearthling, provided he has the steel crucible, with Wrought irons, Charcoals, time and security so some thieving hands wont pinch the iron in the process....be able to make steel bars at the same rate as a more industrialised hearthling?
Thank you in advance.