I was going to say lifespan rejuvenation devices. But you are right, a simpler first test case is obviously superior. So paperclips. As many as it can make. W

I was going to say lifespan rejuvenation devices. But you are right, a simpler first test case is obviously superior. So paperclips. As many as it can make. We can request more useful constructions after it has demonstrated skill at that...