This seems enormously optimistic to me, both as a technological assertion and a cultural one. Like even if we could build self-assembling nano-machines (nota bene: we can't even build self assembling macroscopic machines) why would we use them to disassemble the moon? I mean a 0.1 % chance, maybe. But 10% chance? Nuts.
Culturally? Nuts, sure, but you've been following the news right? Humans are nuts.
> we can't even build self assembling macroscopic machines
TRL-1 tends to imply such statements :)
… although, is that actually true? For macroscopic, I mean? Given factories exist and robot arms are part of them, are you sure nobody has used a robot arm to assemble an identical robot arm from a pile of robot arm parts? I've not heard of anyone actually doing so, but are you sure that's never been done?