Eyeless Sight

Why do you think these individuals are able to do these things without vision?

My first theory is that they might have a potential ability like eyeless sight.
If they are born with no eyes, they will need more information where they are.
Losing their sense makes them concentrate on the other sense supersensibly.
It's hard for normal person to appear potential abilities because they don't need to have these abilities.
but, If normal person lost any sense, he might need these abilities.
So, I think it's easier for the handicapped to get supersensible ability than normal person.

Secondly, they may inherit another ability as gene mutation.
It's uncommon to have a gene muation, but we shouldn't ignore it.

"Heroes" is my favorite drama these days. It gives me inspire to think about it.
I really love to watch it. I recommend you to see it. It's very exciting and interesting!!