LOL. The LA-SF high speed rail has already spent $14B and not laid a single track.
The Toronto-Ottawa rail would be built by the same three contractors that ballooned the Eglinton LRT from $9B to $12B and delivered years late. That was for 20km. Now we want to try 450km??
Estimates now are $90B , so we can safely double that, if it ever gets finished in our lifetimes, while ON land owners corrupt with Dougie and Mark sell us the land at hyper-inflated prices. All for a rail line no one will actually use.
We can already do that distance with electric planes.
We could have overhead wire electric extended buses do the route on current highways on dedicated lanes at high speed, for a tiny fraction of the cost and time, but who gets rich off that?