Abercrombie is definitely very good at this. Most if the time I could tell from a couple of sentences who's perspective we were following just from the vibe change. Other writers definitely do this as well, but in this series each character has their own distinctive flavor that is so well defined that he makes it seemless.
You've got a way to go, but man is the ride is wild.
So something I've never quite gotten, is what's to stop someone from just running a message through pgp before using an insecure app? The math is out of the bag already.
Not only that, those backdoors going to be really big juicy targets for bad actors and they will be cracked by someone either publicly or privately in a matter of months..