The line everybody knows from “The Tempest” — whether they’ve seen it or not — comes late in the play when young Miranda spies the shipwrecked men on her father’s magical island and exclaims, “O brave new world, that has such people in ’t!” That’s a charmingly naive reaction because we understand that these characters are neither goodly nor beauteous, as she supposes. It’s hard not to bring the same cynical understanding to the publishing industry, which keeps trying to pass off waterlogged ideas as fresh.