For Want Of A Shark - Brilliant Blogging!

Every once in a while along comes some great shark blogging and this week it is our high honor to introduce you to some thought provoking stuff from Deep Sea News and rickmac.

For Want Of A Shark

Causal relationships can be fiendishly tricky. Spend an hour watching any of Star Trek Voyager’s time travel episodes and you begin to understand why the show’s writers often resort to lines such as, “It’s better if we don’t talk about this too much.” Consider another example of causality. I’m hammering-out this post at home with a real doozy of a head cold. My sinuses are completely congested. I can feel a chest full of gunk as I breathe. And my body generally feels achy and sore. Retracing my steps, I might place contraction from surface contact or airborne transmission at work where one of my officemates was complaining last week of “a cold.” Or it may have been aboard the overheated, moist Petri dish of my commuter ferry. Or maybe it was from the plates, silverware, water, or food from any of the restaurants I visited last week.

Not having the Center for Disease Control’s Epidemic Intelligence Service activated at every case of the common cold, I will likely never know the ultimate cause of my dreary, mucus-filled weekend. But I can connect enough dots, enough small actions, to construct a few compelling transmission scenarios that might hold water. The more dots I connect, however, the more provisional and potentially implausible my scenarios might become. Causally, they may seem tenable. But at some point, the casual relationships become so tenuously hair-thin that it simply strains credibility.

Red complete post here.