I consulted AI again. 18 years for it to cease to be radioactive. I am sure they will figure out a way to get that number down. It will be like aging wine. You aren't making gold for today you are making it for 20 years from now.

Still quite a breakthrough. Even if we are 20-30 years away from this being feasible and scalable that does still bring gold's long term store of value into question.