[housemate filter]
It's possible to take someone's genetic data, and at any time create replicas of them at that current state. So even after someone dies, you could still see another one of "them" later on.
But replicas, regardless of the physical age they were copied from, start off as blank slates-- they don't have any knowledge or memories that their original would.
[So it's not all that different. But here there's a comfort that probably no one's dying when they suddenly don't know you a week later]