The San Francisco Mime Troupe's new play, Ripple Effect - which debuted July 4 in Dolores Park as usual, but this time in a park shrunk to half its usual size by ongoing renovations - was a rousing success that perfectly captured the city's current zeitgeist and growing pains. And the tight space the large crowd squeezed into seemed to focus its energy all the more, reinforcing the message that political radicals, immigrant workers, and young techies (represented by the three main characters, who blamed one another for their troubles before realizing their common ground) are all in this together. Brava! The play, the Troupe's 55th, now tours the Bay Area before returning to Dolores Park for closing show on Labor Day weekend. www.sfmt.org