> Cost of enforcement matters. The exact same nominal law that is very costly to enforce has completely different costs and benefits then that same law becoming all but free to rigidly enforce.

Hey, I really like this framing. This is a topic that I've thought about from a different perspective.

We have all kinds of 18th and 19th century legal precedents about search, subpoenas, plain sight, surveillance in public spaces, etc... that really took for granted that police effort was limited and that enforcement would be imperfect.

But they break down when you read all the license plates, or you can subpoena anyone's email, or... whatever.

Making the laws rigid and having perfect enforcement has a cost-- but just the baseline cost to privacy and the squashing of innocent transgression is a cost.

(A counterpoint: a lot of selective law enforcement came down to whether you were unpopular or unprivileged in some way... cheaper and automated enforcement may take some of these effects away and make things more fair. Discretion in enforcement can lead to both more and less just outcomes).

This is my problem with Americans and their "but the constitution" arguments.

The U.S. constitution has been written in an age before phones, automatic and semi-automatic rifles (at least in common use), nuclear weapons, high-bandwidth communications networks that operate at lightning speed, mass media, unbreakable encryption and CCTV cameras.

I think the fundamental issue is that a form of equality where everyone gets what was previously the worst outcome is... probably worse.