> Under the constraints of us correctly modelling the math of QC.
You're right.
Those questioning are legit, and we don't know.
It could even turn that the post quantum procedures we chose in our times produces messages quickly breakable by classical computers. And that eventually one day, someone discovers it while trying to solve another problem and decides to warn everyone the right way (yay).
In such unpropitious (but, we still don't know) scenario, how cute we'll be if all that attempt for protecting us from the future were sincere.
You're right.
Those questioning are legit, and we don't know.
It could even turn that the post quantum procedures we chose in our times produces messages quickly breakable by classical computers. And that eventually one day, someone discovers it while trying to solve another problem and decides to warn everyone the right way (yay).
In such unpropitious (but, we still don't know) scenario, how cute we'll be if all that attempt for protecting us from the future were sincere.