The irony of this argument, of course, is that accomplishing these prerequisite moral upgrades would require a social gate-keeping system as intrusive and draconian as any attempts to police the use of particular enhancements themselves (Sparrow 2014b; Harris 2016; Azevedo 2016). It would also open to debate the criteria by which such moral upgrades would be made (Joyce 2013; Craigie 2014; Wiseman 2016; Hauskeller and Coyne 2018; Johnson, Bishop and Toner 2019; Paulo and Bublitz 2019). Would we still allow the enhanced to follow normal views of when the obligatory becomes supererogatory, or expect more of them?  Presumably, we need not aspire to require superhuman virtues, such as angels might possess. But should they at least be saints? Against whose account of sainthood? Once again, the panorama of alternative philosophical traditions opens up for exploration down this road, offering no quick resolution for policy.