That story can be debunked on multiple levels. However, like the
Lusitania elevators, it is a beloved and integral part of the legend and even authors who ought to know better are loathe to relinquish it.
Now, a good rule for an aspiring researcher/author to live by is that the number of "fantastic" or "incredible" (using both words with their literal, not popular, meanings)details that appear in an account is inversely proportionate to the story's likelihood of being true.
Let me know when this begins to sound a bit outlandish:
~Joughin manages to maintain his balance while the stern rises vertical and everyone else is falling over.
~ He rides the stern into the water elevator style.
~The ship sinks so gently that he does not get his head wet.
~He manages to swim the distance between the huge mass of debris where the stern sank and
Collapsible B.
~And then remains alive in the water until after sunrise.
Now, at what point should the researcher to whom this story was initially related have said "Uh...now wait a moment?"
It's not just that Joughin's body somehow managed to behave polar opposite to how a drunk's body invariably does in these situations: every winter here in the northeast brings more tales of drunks who tumble into shallow water ponds who could simply have stood up and walked out, who instead freeze to death.
It's not just that a sinking process that was violent enough to tear an ocean liner in half not only allowed him an elevator ride into the water but also allowed him to float free with a dry head.
And it's not just that instead of leaving him befuddled, the alcohol left him somehow mentally focused and physically coordinated enough to swim through a mass of debris and frantically struggling people who were reacting to conditions that might be described as akin to physical torture.
And it's not just that he swam further and faster than younger, stronger, and sober men.
And it's not just the coincidence that he managed to strike out, for no apparent reason, into the darkness in just the right direction to bring him to
collapsible B.
And it's not just that everyone else on B seems to have been someone who was relatively close to it to begin with~ people who were washed clear of the ship, or jumped from her, at the start of the final plunge. It doesn't seem that anyone else rode with the stern into the water and then swam to B, unless new accounts have surfaced subsequent to my ceasing to care about all things Titanic.
And it's not just that he somehow remained alive in the water until after sunrise, again in defiance to what generally happens to drunks who are immersed in lethally cold water.
It's the cumulative effect of all of these details that SHOULD make researchers wary of using that particular Titanic story.