The community chief was the shaman-smith, possessing the arcane knowledge of avoiding poisonous arsenic gas which is connected to the technology of coppersmithing as well as understanding the year cycle. Still, the whole life of shaman-smith could not pass without biological consequences of chronic arsenic exposure: slow loss of body movement coordination, and at the same time, stronger sexual potency. "That is why", according to Aleksandar Durman, "all eneolithic, or later gods of metallurgy are identified with fertility, and also why all gods in almost all early cultures – limp".