An unaddressed point: These things are usually framed as a change - communications are "going dark", law-enforcement is powerless, radical privacy-first ideology, etc...
But it's not a change - conversations were private-by-default back when they mostly happened offline (yes, a govt. agent could have been eavesdropping, just as they can still plant a bug or an infiltrator today), and encryption is just restoring what we used to have before conversations moved online and became vulnerable to cheap, bulk, covert surveillance.
I agree but I think that one important aspect that did change is the fact that the strain to transfer information privately did become less. Now it’s possible to set up an encrypted channel across the globe in an instant.
But it's not a change - conversations were private-by-default back when they mostly happened offline (yes, a govt. agent could have been eavesdropping, just as they can still plant a bug or an infiltrator today), and encryption is just restoring what we used to have before conversations moved online and became vulnerable to cheap, bulk, covert surveillance.