Once, thousands of years ago, families had been just that: groups of people bound by blood and marriage and closed to everyone else. But the inherent limitations of such a system had led to decline and stratification, and some of the patriarchs had begun experimenting with methods for absorbing outsiders that didn’t involve marriage. The result had been the current system, where likely prospects could be brought in as merit adoptives, with those who proved themselves especially worthy rising to Trial-born and possibly even ranking distant.