Hypothetically, in the event of a large war, the undersea cables that connect the world with internet could be severed. Satellite internet could be disabled through further wartime acts. We could end up with several discreet, independant internets that are not only separated by great firewalls, but also physically separated from each other.
It's my understanding that the block chain would essentially continue in each internet pocket unhindered, but not synchronized.
So what happened if after a prolonged period of isolation, let's say 5 years, the networks become reconnected.
Would the two block chains "merge"
If they merge, how would potentially conflicting transactions be handled? Double spending? Would one block chain fully overwrite the other? Effectively nullifying 5 years worth of transactions? Or would the possible overwrite only affect specific conflicting transactions?
Or would they stay as separate discreet chains at that point?
Would that mean someone who has keys today would then have keys for multiple sets of bitcoins on multiple block chains with the same keys? (so if I had 1btc today, after the "war" would I then have 1btc [Americas] 1btc [Asia] and 1btc [Europe])
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