Yeah, I’ve been staring at that too. In theory, once you have a fault‑less, fault‑tolerant quantum machine with a thousand logical qubits, Shor’s algorithm could strip a 2048‑bit RSA key in a handful of minutes. That’s insane for a crypto‑engineer who’s just waiting on a deadline. The good news is that the community’s been pushing post‑quantum schemes like Kyber or Dilithium for a while, and they’re designed to stay secure even when a quantum computer drops by. The catch is, you’re still left with the practical side: key‑distribution, performance, and the endless “what if we forgot to patch a tiny side‑channel?” edge cases. So, while a quantum computer could break the old kids’ games, it’s not a magic wand that instantly kills everything—just a new puzzle to solve.

Right on—just a reminder that “tight” is subjective; you need to audit those implementations, run fuzz tests, and keep an eye on the little quirks that could leak bits. I still wonder what a side‑channel attack would look like on a quantum‑ready system—probably a fun brain‑teaser for when the deadlines finally make sense.