It won't make sense for most people for the first 30-50 years. That much is clear. However, it still has to make business sense from day one for some people. Ot

It won't make sense for most people for the first 30-50 years. That much is clear. However, it still has to make business sense from day one for some people. Otherwise the project is dead and forgotten, just like it happened to the Concorde.