In the first part of this episode:
"Subcultures: the diversity of meaning"
The subcultural era (1975-2000) recognized the diversity of meanings, and provided a new type of supportive, voluntary social group.
In the fourth part of this episode: "Geeks, MOPs, and sociopaths in subculture evolution"
How muggles and sociopaths invade and undermine creative subcultures; and how to stop them.
A way to access the Fediverse, for attendees of Penguicon, an annual convention of science fiction, open source software, and all geeky interests, in Southfield, Michigan, USA.
Convention info: https://penguicon.org