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@GarethDennis
Having read through your delightful manifesto, I am left with a few questions.

1) sea level rise and existing rail routes. Even at only 5m of sea level rise, many bits of existing rail networks, certainly in the UK, will be compromised. If we are planning rail infrastructure for 100+ years, doesn't this mean we have to reroute rather than maintain?

2) More generally, it seems to me that one of the important insights rail planning demands is a ruthless honesty about the inevitable changes to the landscape that comes with thinking in terms of infrastructure for a century, not just a decade.

3) Mode share with flying - do you think air travel will remain a viable form of mass transport in a 50-year timeframe? Or will slower forms of long-haul travel again become normal?