An Evening With Whitney delights fans, but raises questions about the ethics of hologram showsWhitney Houston bursts back into existence from a nucleus of light. She is projected on a transparent screen hanging behind the backup dancers and in front of the band, her face ethereal, her body draped in a glittery gold gown, arms opening to the audience. She’s just slightly transparent and her skin has a filtered glow. The first bars of “Higher Love” play. Her gilded skirt brushes the solid floor. As she sings, keywords flash on the screen like karaoke prompts, and the live backup dancers p...