[rmk2]

There is a video from th 35C3 on that website which gives a primer to what it is they mean, and where he also explains that "operating system" is to be understood as a metaphor for the patterns, habits and reflexes that guide our own (human!) actions.

https://8os.io/body-35c3-hackers-conference/

Essentially, this seems like it combines ideas from Tai Chi, Aikido, mindfulness and a bunch of other sources to reflect upon the automatisms we all necessarily develop and have developed.

It sounds a bit esoteric, but not more so than other martial arts, which also similarly suggest to help us develop insights that apply beyond the martial art itself.

[ivansavz]

Yeah redirecting moves look a lot like Tai Chi or Systema, and the practice where the video where they continuously stay in contact reminds me of Contact Improvisation dance.