alt Hacker NewsEyeballing a sigmoid curve for TRL development times: https://en.wikipedia.org/wiki/Technology_readiness_level
There's several things that it depends on which are TRL 1-3, but are known to be at least theoretically possible. Based on how long it takes to get other things from TRL 1 to working device, I think it's most likely to take longer than my current remaining life expectancy even to be even odds, but not by such a large margin as to be infinitesimal odds.
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.