### Instruction: Why is it so difficult to make every free throw in basketball?
### Response: Making every free throw in basketball requires the perfect form every time, allowing for only a slight variation in shooting motion. Anything beyond that will cause the ball to miss the sweet spot, resulting in a miss. Although muscle memory is very powerful, it is difficult to execute the exact same form every time. As a result, it requires a lot of practice in order to be good at shooting free throws.