I meant “meaningless” in the sense that your encryption is then on heavy diminishing returns territory when it comes to defending against a qc. It will likely

I meant “meaningless” in the sense that your encryption is then on heavy diminishing returns territory when it comes to defending against a qc. It will likely work for a while, but it’s a fundamentally wrong approach and you’re going to be exposed into recording & decryption attacks, instead of breaking your encryption today, I just store all your communications and wait for the next qc to be online, then fish for stuff that is still useful. It’s a silly approach if the timeframe is 50 years because most secret information goes stale quicker, but if you’re just waiting for say a year…