19 hours on an Amtrak would be better because you can move around from car to car. But the bad thing is 19 hours on an Amtrak will only get you about 500 miles, not halfway around the world.
Oh yeah, but coach on the train is better than high class on the plane.
That’s the point. And take it from tall person with medical issues. Much better seating for hours on end along with moving around.