Nor did I say ecash has nothing useful to do with bitcoin. It is not bitcoin but may be useful to bitcoin.
This is self-contradicting
The latter part is conditional, it's no more related or useful to Bitcoin than SQL is
I'm confused by what you are saying.
Do you think there is anything that is not bitcoin but is useful to it?
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Yes, what I'm saying is that ECash is less useful than SQL
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That's fine. I don't care whether it is less or more useful than SQL. I'm interested in what its uses might be. And whether we can do something with it that is good for freedom money.