"This model is already profitable (!), but you can expand further." How many years is the break even point before profit is generated charging riders even 100$

"This model is already profitable (!), but you can expand further." How many years is the break even point before profit is generated charging riders even 100$ per trip? Some of these highspeed rail projects proposed across the USA have a 1-2000 year break-even excluding maintenance over 2000 years @ 100$/rider/trip