Let me clarify first, your view is that a quantum computer that can break a bitcoin key is, no matter how engineered, a physical impossibility, because the laws of physics say it is? As in this is not an engineering problem but a fundamental limit of physics, akin to faster than light travel in the conventional sense? That, with the knowledge we have today, we can conclude that, for now and for all time in the future, such a thing is totally impossible. This is your view yes?