In theory, we enjoy one-person shows. A charismatic performer, alone on a stage, speaking truths and telling good stories, can captivate an audience in a way that multi-person performances can't. All you have is that one voice, that one thread to follow, that one pair of eyes staring back at you in the darkness. Mike Daisey is certainly a captivating speaker, and the performance we saw last night of his nonfiction monologue The Last Cargo Cult at Berkeley Rep, kept our attention, made us chuckle and even laugh out loud once or twice, but we've got to say that Berkeley may not be the most provocative place to stage a piece like this. Given the theme — it's basically an indictment of the American-capitalist dogma, and a semi-philosophical rant about our religion of currency — it felt a little like he was preaching to the converted here in the Bay Area, and doing so in a manner that suggested he thought he was teaching us something we didn't already know.