Join Date: Oct 2010
Location: Carousel Capital
It does look impossible but I think it is suppose to. It's an incredible feat, one that even the Colonel and his soldiers are amazed to see. It was a brave act that most horses wouldn't even consider doing. The writers wanted Spirit to stand out from your "normal" horse. By giving him that task he stands above the rest.
In real life, I believe that act is impossible. The distance from the movie looks much further than 30ft. :)