It’s dark, but you’re in the spotlight. Four thousand people are watching you. Intently: they can see every bead of sweat, via a giant screen. You’re miked up. The audience hears every short breath you take, every gulp, every stumble, every mispronunciation. You’ve been handed two anonymous glasses of red wine (which just happen to be Petrus 2012 and 2003). Is the former, you wonder, a top Ribera del Duero? Could the latter, um, be a Hermitage from the 1990s?
Well, probably not