Analysing railways with a Brexit diagram in my head

Why do I think Heuro Train's plans to run Amsterdam - Paris in 2030 are bullshit? Because I can see no way to think they can get any trains to run by then. An important building block for a route from today to running in 2030 is missing.Why do I think Nox have a better chance? Because I can at least see what all the building blocks are to be able to run, although I admit that the chances some of the pieces fall into place are not 100% certain.And this, while I have not articulated it this way before (a conversation this week with an old friend got me thinking about this), is basically applying my Brexit logic to railways.For those who did not encounter my work during the Brexit years, I was known for a series of ever more complicated diagrams about Britain's efforts to exit the EU - you can find all of these diagrams here. The New York Times even wrote about the diagrams.What doing this taught me was the importance of knowing what the stages of the process were, and how that was more…