Efficiency frontiers are a game of fantasy (reality is never at the frontier), so it's not relevant whether there is a "zero fraud" point, but also for the same

Efficiency frontiers are a game of fantasy (reality is never at the frontier), so it's not relevant whether there is a "zero fraud" point, but also for the same reason a tough argument to make that there are no situations where (even in theory!) such a frontier exists But that's also not connected to the main critique - I get how you'd welcome more efficiency (at higher costs), but do you get to welcoming costs outside of trying to do counterintuitive rhetoric?