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A comment on Async Ruby. Parent comment

Re:Async Ruby by tyrfing on Sunday October 31, 2021 @02:09AM (#29054832)
Coloured Petri Nets predate both and are relevant to crypto, I don't know enough to say if the idea was math/compsci jargon prior to that as well.

https://en.wikipedia.org/wiki/Coloured_Petri_net

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Re:Async Ruby by jazzyjackson on Sunday October 31, 2021 @04:36AM (#29055478)
Thanks! Didn’t know about Petri nets, makes me wonder if this all didn’t start with Red/Black binary trees, so named because that’s the two colors of ink they had on hand, cited 1978:

https://softwareengineering.stackexchange.com/questions/1166...

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