Different levels of success require only getting close enough in mindspace, and is highly relative to one’s subjective knowledge of the person.
What matters most is consistency. It’s not like the average person remembers everything they said a few years ago, so that 10^10 figure is extremely generous. Our memory is actually fairly poor.
There will be multiple versions of past people—just as we have multiple biographies today. Clearly there is some objective sense in which some versions are more authentic, but this isn’t nearly as important as you seem to think—and it is far less important than historical consistency with the rest of the world.
Given all this I can’t see how you insist that copies make the same decisions as originals. In fact, in your quote you even have different copies making different decisions (“multiple versions”).
The different versions arise from multiverse considerations. The obvious basic route to sim capture is recreating very close copies that experience everything we remember having experienced—a recreation of our exact specific historical timeline/branch.
But even recreating other versions corresponding to other nearby branches in the multiverse could work and is potentially more computationally efficient. The net effect is the same: it raises the probabillity that we exist in a sim created by some other version/branch.
So there are two notions of historical ‘accuracy’. The first being accuracy in terms of exact match with a specific timeline, the other being accuracy in terms of matching only samples from the overall multiverse distribution.
Success only requires a high total probability that we are in a sim. It doesn’t matter much which specific historical timeline creates the sim.
The idea of decision agreement still applies across different versions in the multiverse. It doesn’t require exact agreement with every micro decision, only general agreement on the key decisions involving sim creation.
Let me quote you:
Given all this I can’t see how you insist that copies make the same decisions as originals. In fact, in your quote you even have different copies making different decisions (“multiple versions”).
The different versions arise from multiverse considerations. The obvious basic route to sim capture is recreating very close copies that experience everything we remember having experienced—a recreation of our exact specific historical timeline/branch.
But even recreating other versions corresponding to other nearby branches in the multiverse could work and is potentially more computationally efficient. The net effect is the same: it raises the probabillity that we exist in a sim created by some other version/branch.
So there are two notions of historical ‘accuracy’. The first being accuracy in terms of exact match with a specific timeline, the other being accuracy in terms of matching only samples from the overall multiverse distribution.
Success only requires a high total probability that we are in a sim. It doesn’t matter much which specific historical timeline creates the sim.
The idea of decision agreement still applies across different versions in the multiverse. It doesn’t require exact agreement with every micro decision, only general agreement on the key decisions involving sim creation.