system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why do some materials ‘feel’ wet when actually they are just cold.
gpt
> Why do some materials ‘feel’ wet when actually they are just cold.

We don't have "wetness sensors" on our skin. We can detect pressure and changes in temperature. Typically speaking water is difficult to change in temperature and a good conductor of heat so it feels cold. But things like metal can also be good conductors of heat and without texture cues to determine the difference it can be confusing if something is wet or just cold.