Adversity builds special talents, or so we've always been told. That might be bullshit, a way to feel better about the things that hold us back beyond just "Wow, that really sucks, sorry." But it feels true enough, I guess. I'm not sure if it's a scientifically measurable phenomenon, but those of us with special needs children watch them as they work to overcome obstacles, and we hope that their other senses and capabilities step up to fill the gaps. We hope for the same within ourselves, too.