Simple analogy: would it be possible to design a digital hardware/software robot (and set of tools), such that the robot could: 1) build/maintain the tools it

Simple analogy: would it be possible to design a digital hardware/software robot (and set of tools), such that the robot could: 1) build/maintain the tools it needs 2) use tools/knowledge/skill to repair/rebuild/replace its parts, good-as-new 3) transfer it's software from the old parts to the new parts when necessary 4) achieve immortality If so, one needs to argue why this analogy could not hold for biological life, why any underlying hardware or software cannot in principle be replaced/repaired/migrated to maintain the immortal being. Obviously this avoids arguments over the self/persistence of identity (ship of theseus), but it's not directly relevant to the article.