Why are cats so bad at walking backwards?

This morning when I woke up, my cat was sitting on the windowsill, which isn’t wide enough for him to turn around. He started chirping at me like he usually does, then tried to back up so he could get to the chair below the window so he could jump down.

Anyway, he looks so awkward when walking backwards! Have you noticed this with other cats? It doesn’t seem to be a problem for other animals.

Why do you think cats are so bad at backin’ up, backin’ up, backin’ up, backin’ up?