I've also heard about the no gravity flying ideas, and even if they go higher but not completely gravity-less, it could conceivably save a huge amount of time/energy. Or waste it.
I am broadly in favour of all such projects and it is a fairly obvious thing to do, and a crossing which they have been looking at for donkeys years. To be honest, i'm surprised it's taken this long. With something like this, it is revised as opposed to new connections. Morroco is just as easy for me to get to now as it will be then. It just takes longer. The Spaniards finally getting their act together and finishing the Catalan end of the Barcelona-Madrid HSL, and then the Figueras-Perpignan base tunnel and associated works will make a much larger difference to me, though the chances of me doing the same thing/living in the same place now and when they are both opened in 20years time is at best non existant. Doubtless I will have flown long before then, so realistically anything which isn't due to open within about 5years won't make any difference to me anyway.
I wouldn't say I have negative thoughts about something like this. There is more or less b*gger all i can do about it, regardless of however negative I am, so i try and avoid thinking about it like that. I have a few reservations, but that is from a logistical/operational side as opposed to the basic idea.
What I am uneasy about is how much it will open places like Morocco up. But easyjet and Ryanair are already doing their damnedest to destroy huge swathes of previously more or less unknown places, and all objections are entirely personal in that it just means that i have to go further afield to find obscure unvisited places which aren't full of drunk backpackers/stag do's who are ruining places I love and where i used to be more or less the only visitor. And to be fair, you cant halt progress in such places just because i like places without many tourists...