That's the point. Eventually we'll get to the point where we'll be able to mass manufacture at the molecular or atomic level. Until then the best we can do is c

That's the point. Eventually we'll get to the point where we'll be able to mass manufacture at the molecular or atomic level. Until then the best we can do is coax living things into doing our bidding. But as you point out, it's not a solved problem. The point of the parent comment was that we're not there yet.