> Old recorded messages will be broken eventually, quantum computing or not. That may well take multiple lifetimes, greatly reducing its impact. Mere increases

> Old recorded messages will be broken eventually, quantum computing or not. That may well take multiple lifetimes, greatly reducing its impact. Mere increases in computing power will not break 256 bit Elliptic Curve cryptography for centuries. That will require algorithmic breakthroughs or large scale quantum computers as well.