Consider the following three scenarios:
1) Two clones with the same memories, feelings, etc. are in a room. Clone A is killed by Clone B. Clone B immediately loses all memories of Clone A and the killing. Does the consciousness of Clone A exist remain alive in Clone B?
2) Two people are alive at different times. They are identical, live in the exact same circumstances, perform the same actions, and die the same way. Throughout this time, they have the same thoughts, feelings, etc.. Do the two people exist as significantly different entities or the same one at two different times?
3) Two clones are alive at the same time. They perform the same actions, live in the exact same circumstances, and die the same way. They have the same thoughts, feelings, etc.. Do the clones have any significance as separate entities? What is the deeper philosophical meaning we can derive of there being two different people who hold no significance as separate entities?