system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why is it so much easier to kill a fly with a flyswatter or newspaper than with your hand?
gpt
Flies are highly sensitive to changes in air pressure and/light. When you attack it with a newspaper or swatter, you are using a flicking motion with your wrist that causes it to move much faster than your hand alone (think about how the tips of whips move faster than the speed of sound). So the window of time the fly has to react is much slower.

The swatter has the additional advantage of holes, which help allow it to move faster.