system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why do cats like boxes so much?
gpt
Most animals like to feel enclosed. We do as well, albeit to a much lesser extent and in a very different way. For a cat, a box is just the right size for it to get comfortable, have some walls around it, and as many viewpoints out as possible so it isnt shut off from its surroundings.

For funsies, you can take a packing box and cut doors and windows into it. Some cats love it, others think its meh, but its not much work and its worth a shot :)