> Do you really think that the entire ship goes to to sleep at night on a 2 billion dollar naval destroyer while it cruises in a crowded shipping lane? I didn'

> Do you really think that the entire ship goes to to sleep at night on a 2 billion dollar naval destroyer while it cruises in a crowded shipping lane? I didn't say they all go to sleep, they probably have lots of things to do at various times. And I wasn't talking about more-sensitive points like crowded shipping lanes. I was just talking about having people on duty to literally keep a watch out over the sea the entire time. Not sure why you twist my words like that. Or you're saying they do have watchmen 24/7 but their watchmen are just blind? How did they manage to collide 4 times this year if they had people watching the sea the whole time? Oh, and don't forget others are suggesting sleep deprivation as the cause. Which is not exactly inconsistent with my point that keeping watch is probably difficult and costly...