Good video on Quantum Computing. With gist of it when it applies to Bitcoin being that just having one working does nothing if you cannot program it to do what you want it to do. Which on that alone can take years. Expert on the video seems to think anything on that is decades away. So, based on what other people have said in the subject. I think there is nothing to even be concerned about for the next decade. And when it comes to encryption changes to bitcoin, if needed. This can be done within a year.