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Richard Stallman's far fetched sounding examples become more and more true with each day

True. Whatever disagreement people may have with his free software movement, it's undeniable that the man saw far into the future. His "Right to Read" story always hits hard:

https://www.gnu.org/philosophy/right-to-read.en.html

It's frightening to watch this cyberpunk hellscape unfold.

The modern day Cassandra

Who?

cassandra is a woman from a greek myth that was cursed to make prophecies that would always be true but no one would believe.

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

That wouldn't be much of a curse. If you get to make whatever future you want, who cares whether anyone believes you in advance?

Cassandra was just able to see the future (and no one would believe her).

Tangentially, I think it's interesting that Greek mythology takes such a clear stand on the nature of time travel: it's possible, but history (past, present, or future) can't be altered.

That is one of a couple of rival models in modern science fiction, and generally not a particularly popular one.

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