My comments:
The important thing to note that at this point it's just a political posturing and an announcement of intent. They haven't shown any concrete technical plan how this would actually be executed.
> "Of course, we are very pragmatic and realistic, we cannot do this in five years. Planning will continue until the end of the decade, and maybe in 2032 we can start construction."
Once they have the cost estimates and effects on existing rail traffic studied, I bet construction will never start.