The Audacity Sandbox Season 1 Episode 6 Editor’s Rating 3 stars *** Next Episode » Duncan (Billy Magnussen) has a renewed sense of purpose now that he’s been knocked off his Hypergnosis perch. Photo: Ed Araquel/AMC “Sandbox” is now available on AMC+ ahead of its 9 p.m. ET broadcast next Sunday. “The willingness is there to do what others dare not.” That line, uttered by Duncan in the last scene of this week’s episode, is as succinct a thesis statement as The Audacity has offered about the ethical wasteland of Silicon Valley. The common euphemism that the tech world tends…