Surely when you say "This will be a gradual migration over 50-100 years" you are imagining a process by which this will happen. You didn't ask me any questions

Surely when you say "This will be a gradual migration over 50-100 years" you are imagining a process by which this will happen. You didn't ask me any questions, you asked nerdponx, and I chose to join the conversation. What I posted above was my answer to "Is it wishful thinking though? How exactly?" But given the way are responding, I'm not sure you're interested in having an honest conversation.