Possibly, you could test out an entire library of stored memories against a new host and transplant the best match in some sense. And of course, there are other wild possibilities such as implanting the memories of multiple people into one host, or achieving a trading-places sort of memory switch between two living people. But those don’t add much philosophical fodder to the base case. The base case of splicing the end of one living memory into the beginning of another, smoothly and with preservation of rewrite capabilities across the junction, captures much of the challenge.
