Nothing in there about how they'll do 1.5nm. That's understandable; it's a hard problem, and I imagine any solutions they've come up with will remain trade secrets for some time.
I've heard stories, though. Scanning-tunneling microscopes on fire off the shoulder of Orion. Massively parallel arrays of atomically precise probes, used to build CPUs atom by atom. Things you wouldn't believe.
I'm sure it's coming one day, but once you've gotten that far, how far away are you from outright nanofactories? Which are science fiction, and therefore can't happen.