My friend asked me that he feel a little uncomfortable with machines aiding in the outcome of decisions, and is this based on solid scientific principle.eg what happens if a gust of wind affects the direction of the object or it hits a bird en route.

Hawkeye is likely to be more accurate then humans, because humans make mistakes, and are unable to make fast accurate calculations. Any mistakes Hawkeye makes and most likely down to human error in the design of Hawkeye.

In my perspective, nothing can be 100% correct but hawkeye has been proven to be "more than 99% correct" so it is accepted that it is the correct decision,