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Fungibility is.....
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There has to be universal trust that electronic coins are not being duplicated at will.
There has to be a way to hide personal identity. The coins themselves don't have to be hidden.
It's not rocket science.
Sorry you are conflating separate concerns. Even duplication-at-will doesn't impact fungibility.
Eliding personal identity isn't always necessary for fungibility and it doesn't by itself make fungibility.
I am sorry but you guys are not expert in logic. Smooth is. I am. That is what makes me an excellent programmer.
Avoiding duplication at will is necessary for a currency to be, err, a currency. Logical? Yes; check.
Passing currency from one person to the next without labels to past misdeeds making the currency worthless. Logical? Yes; check.
Cash has no memory of ownership. Logical? Yes; check.
Yeah. I'm right.
A currency can exist for some time even in hyperinflation. Even if the value of the currency crashes asymptotically towards 0 (
but never reaching it because atoms have mass and even duplication requires distribution and speed-of-light is not infinite),
the currency units are still fungible!You are conflating currency value and currency viability with an orthogonal concept of fungibility.
These sort of errors in logic are one of the skills that separate really good programmers from junior programmers.
My bank has a record of ownership, yet the dollars in my bank account are still fungible with your cash dollars.
Come on guys you are wasting my time. I am smarter than you, at least in logic.