The mystery of the third man

In the episode of Star Trek: Enterprise called "Doctor's Orders," the ship is passing through a region of space suffused with a field that interferes with (and could be dangerous to) most humanoid brain function.  The ship's doctor, Phlox, is from a species thought to be immune to its effects, so the captain agrees to have the entire crew (other than Phlox) put into induced comas and place the ship on what amounts to auto-pilot, leaving Phlox to re-awaken the crew once they've traversed the hazardous region.

It soon becomes obvious, though, that Phlox isn't entirely immune himself.  He begins to hear knocking noises, as if someone or something is trapped in the walls of the ship.  He sees shadows and illusory movement -- at one point, nearly killing Captain Archer's dog, Porthos, who had escaped from the captain's quarters, thinking it's an intruder who is stalking him.  After a period of becoming increasingly nervous and paranoid, he encounters the Vulcan crew member T'Pol, who was not sedated, and she not only helps him run the ship but keeps him company, significantly reducing his emotional stress.

Things take a frightening turn when both of them begin to hallucinate -- and they find that the dangerous region has expanded, turning what would have been a two-week crossing into ten weeks.  Phlox and T'Pol confer, and after weighing the options, conclude that the only possibility is to go into warp, initially thought to be too risky because of the possible interactions between the field and the ship's warp drive.  In the end, they decide that there's no way either of them will survive another eight weeks of what amounts to progressive psychosis.  They engage the engines, and successfully cross the region and back into normal space.

But when Phlox goes around to re-awaken the captain and crew, he finds T'Pol asleep in her quarters.  She has, in fact, been in an induced coma the entire time -- his interactions with her, and the help and companionship he received, were also hallucinations.

What Phlox experienced is a strange, but well-known, phenomenon called the third man illusion.  This occurs when someone in a life-threatening situation has the overwhelming sensation of being accompanied by a supportive or comforting presence, often of a particular person.  The most famous example is Ernest Shackleton, who during his harrowing crossing of South Georgia Island with two others, was frequently convinced that there was a fourth there with them, someone who was a protector and would see them to safety (which, eventually, they accomplished).  Poet T. S. Eliot referenced Shackleton's experience in his poem "The Waste Land" -- in fact, it's Eliot's lines that gave the third man illusion its name:

Who is the third who walks always beside you?
When I count, there are only you and I together
But when I look ahead up the white road
There is always another one walking beside you
Gliding wrapt in a brown mantle, hooded
I do not know whether a man or a woman
— But who is that on the other side of you?

Unlike yesterday's post, where hallucinations during cataplexy were often disturbing or downright horrifying, the third man illusion is comforting, sometimes even giving the person in extremis information or encouragement that leads to their ultimate survival.

It probably should go without saying that I don't think the third man illusion is because there is an actual disembodied presence there with you, any more than the poor woman in my previous post who saw a "greenish-pale, abnormally tall man" shouting random numbers at her was seeing something real.  It's much more likely that like Phlox in "Doctor's Orders," our brains have created the sensation of something comforting or helpful as a coping mechanism to alleviate extreme stress.  But you have to wonder if this is where the whole Guardian Angel idea comes from -- that there is a being out there who is looking out for us, and helps us come safely through dangers.

But there's no doubt that it can seem one hundred percent real, and many of the people who have experienced it come away true believers.  Mountain climber Joe Simpson, in his 1988 book Touching the Void, describes falling into a crevasse in the Peruvian Andes and suffering a horrific leg injury, and that a "voice" encouraged him to keep trying and guided him to safety -- a voice that came from outside him, and without which, he says, he would have certainly died.

So who knows?  I've never experienced anything of the kind myself, so perhaps it's easy for me to sit here in my comfy chair and disbelieve.  It's hard, sometimes, to balance hard-nosed rational skepticism with "there are more things in Heaven and Earth, Horatio, than are dreamt of in your philosophy."  We certainly don't have explanations for everything.  As journalist Kathryn Schulz put it, "This is life.  For good and for ill, we generate these incredible stories about the world around us, and then the world turns around and astonishes us."

And... sometimes... may actually save our lives.

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