Then his father suggested he tried a method that exploited his strengths: visualization.
A heart-warming, inspiring story indeed.
How did Stanislaw Ulam arrive at the Monte Carlo solution that helped the Manhattan project a good deal? Hoe did Rodney Brooks revolutionize robotics by shifting from world-representations to world-sensing?
If you can't do a thing a certain way, maybe there are many other ways you can do it.
Innovate around any tricky, knotty problem. Your way, non-average way.