[whatshisface]

That's the false duality. NSA cannot "be stopped," but they don't use every tool they have available on every mission. When conducting foreign intelligence operations against high-value targets they will use 0days you can't secure against. When they're unconstitutionally surveiling you they'll use http and a large language model. Your inalienable rights are going to be violated by a deal with Google Cloud, not a quantum computer, or even a kernel bug.

In this context, the purpose of tools like "five way secret sharing" is to communicate in a way that can't be broken without revealing the existence of the 0days and exceptions to the judicial process by using them on a hundred million citizens at once. The threat model is a lot of very smart engineers who can passively listen to anything that gets sent over the internet, not Perry the Platypus.