It’s Superheroes vs. smartphones at Comic-Con

Superheroes: They're just like us.

If you read and watch most coverage of Comic-Con, the world's largest nerdfest, you'll come away with the impression that its world-famous cosplay fanatics are forever posing in states of grunting, flexing, fist-pumping, poster-worthy superheroic brilliance. 

And while it's true...