Dinner conversation at my house often ends in a heated debate with my sons over which would be the coolest superpower: flying, X-ray vision, super-human strength… ? Invisibility is said to be a superpower. After all, it landed the Invisible Woman a spot on Marvel’s Fantastic Four. Harry Potter’s most prized possession was his Invisibility Cloak. But what about the kid who stays invisible? The one who would do anything to lose that power and be seen? My experience has…