Look at what the major banks are doing. All of them have some sort of post quantum security program. None of them have deployed post quantum security at scale

Look at what the major banks are doing. All of them have some sort of post quantum security program. None of them have deployed post quantum security at scale. To me this means that they have a estimate of >10 years <30 years for Q day. I disagree with them - I think >20 years < 50 years... but wtf do I know! I'm a fella on the internet with an axe to grind :)