Have you noticed a common thread among superheroes? They have lowly origins, rise to unlikely greatness, and often have Achilles’-heel-like weaknesses. Think about it. Spiderman was a whimpy teenager until a spider bit him. Captain America couldn’t even meet the enlistment requirements. Superman was superhuman unless kryptonite came into the picture. Does anyone remember I-Man? My brothers liked this movie from the 80s, so I watched it many times in my childhood. I-Man breathed extraterrestrial space dust that made him virtually unstoppable. But if he were left in the dark, his cells would die, and well, so would he. He also had a penchant for stealing all the cream for…