> Has air travel totally replaced such a travel option? Given that there appear to be no "sea route" travel options for passengers remaining, the answer would

> Has air travel totally replaced such a travel option? Given that there appear to be no "sea route" travel options for passengers remaining, the answer would appear to be: yes. > Why? Most likely, speed. Second most likely: cost. > Not everyone is in so much of a hurry that a week or so of travel by sea is not an option, and that could reduce emissions. But, also, not enough people are willing to take a week of sea travel to get from point A to point B to provide enough volume for the ships. People spent a week at sea in 1900 not because they wanted to spend a week at sea but because there was no other faster option for that travel.