[Arrezz]

I believe that this is a key part of a sustainable future in terms of climate impact but I really don't know if we have what it takes to pull off a project of this size. It's interesting that it seems like these type of large infrastructure projects were more on schedule and feasible a century ago.

[ben_w]

I think scale of this is a bit bigger than most of what we actually did in Europe a century ago, as the who-pays-for-cross-border question was even harder then. The closest fit anywhere would probably be the USA interstate network.