I recently proposed this question: "Telltale signs that quantum computers become danger to classical cryptography?". It was closed as "primarily opinion based".
How can the question be modified to avoid that pitfall?
I think the subject has practical significance, and something on that tune is worth asking. I had tried to word the question to make answers as falsifiable as feasible:
- I'm not asking when we get to quantum computers becoming a danger to classical cryptography; I'm asking for milestones that most likely are before that;
- I try to work around the problem of secret developments by assuming we are well informed, and restricting to commercial use;
- I ask for rational arguments, with suggestions.
Any idea on how to improve the question?