I've heard of Participatory Democracy a bunch of times, but I only recently came across Prefigurative Politics https://en.wikipedia.org/wiki/Prefigurative_politics
This is where (activist) groups/orgs attempt to mirror their aims in their practices, i.e. groups that ultimately want non-authoritarian society do so in a non-authoritarian way (contrast to 'vanguardism')
"This is what democracy looks like", "Can't destroy the master's house with the master's tools", etc.
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