 Why does Sias believe that the ancients declared 70 as the minimum age for a member of the Conclave?
They were created so long ago, indeed, that the ignorant believe them to have been constructed by the gods themselves. Indeed, the watcher is more a tradition than a necessity. It is at such times that I most revere the wisdom of the ancients, who decreed seventy years the minimum age for a member of the Conclave. Rocsates leaned forward and asked, "Must there not—must there not have been a beginning to Prelife? Rocsates' voice made itself heard. And Rocsates has been anxious for an excuse— "Sias," he went on, "if there exists such knowledge as I seek, is it not indeed lost to the memory of Man?
 They do not have the energy to riot amongst themselves
 They are the ones who remember things from previous generations that get lost to time  They do not have the energy to riot amongst themselves  They are closest in lineage to the predecessors that generated the machines  They have had sufficient life experience at that point