This seems a little far out there, but if they move ahead with it hopefully they’ll lay down an internet trunk line too. Right now, the vast majority of Canada’s internet traffic runs through a trunk line via the US.

I also wonder if it might be more feasible to explore developing some sort of battery-tanker that can just be pilotted across, plugged in, and the pilotted back for recharge…

Even at an insane voltage, still gonna need to be massive diameter cabling.