Whatever is the case. No one can deny that it is now technologically feasible to satisfy revelations 13:17. Where before we could use cash to avoid such a law, in a bitcoin protocol world, every single transaction can be tracked.
I suspect that control won't come from the protocol itself. The control will come from laws that implement scanners which require a private key plus ID proof (maybe fingerprint but eventually DNA). One reason for this could be to "prevent terrorism".
We are many years from that day but no one can deny that the technology exists today. Already I note that people are producing encrypted private keys using the grain of wood as the encoding mechanism. Soon it will be fingerprints then the next step is to use DNA.
your assuming that all other currencies are rejected worldwide and bitcoin emerges the dominant and sole means of currency with that.... which i really dont think is that likely as long as there is real and solid GOLD SILVER AND OTHER PRECIOUS METALS available on the planet.
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I agree which is why the government will ONCE AGAIN STEAL everyone's precious metals and "pay a fair price for it". This is not a theory but history repeating itself. I believe it was Roosevelt who last confiscated all the gold. What makes you think they wouldn't do it again?