Kramer’s Ice was a thought experiment built around how radicals organize internally

Evidence

Politically, The Edge represented an earlier stage of development than Ice, which, a thought experiment addressed to the Movement, made even as SDS fractured, opens with a meteorological report. (“You don’t need a weatherman …”) The movie’s first half is organizational: Characters, most of whom are revolutionaries and potential fellow travelers, hold meetings (public and private), conduct interviews (formal and informal), and seek information. — J. Hoberman, Everything Is Now, 1655