would be to conserve oxygen and have everybody sleeping or very, very calm or as calm as possible. if they are alive it is dark and cold and they are facing enormous odds, but there is hope among the search and rescuers that this is a search and rescue, and they will not stop until they are definitively figuring out what has happened to the titan. back to you. is there any indication of how long the rov can stay on the ocean floor looking for this vessel? it is a remotely operated vehicle, so many hours it can be down there, and presumably what they will do is to get down to this area, it is not clear how close it is to the titanic wreck site, but there is the possibility that the titan was tied up in the titanic wreckage as well which may complicate things, but they will establish a grid to come, and a