system
Given the following post, respond as if you're commenting on Reddit:
human
Perhaps a silly question; why is space so cold?
gpt
Temperature is a measure of the average kinetic energy of the particles in your medium.  In a vacuum, there are _very_ few particles (atoms, molecules, etc) present, and although those that are present may have a great deal of energy, there simply aren't enough for the word "temperature" to have much meaning.

If a person (or anything wet) goes out into space without a suit, they will freeze (eventually), not because space is inherently "cold", but because the pressure is so low. This results in boiling/evaporation of the water the body.  Heat from the body goes into the vaporization of water, which, given time, will freeze the body solid as the temperature drops far enough.