system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why doesn't a vacuum have the temperature of "Absolute Zero"?

I understand what they call "Absolute Zero" is the complete absence of all thermal energy, meaning that there is no movement at the atomic level whatsoever (probably not a 100% accurate explanation, I know, but rough idea), so why is it that a complete vacuum isn't at the level of absolute zero even though there is no thermal energy within it (as in, why don't we get instantaneous frost bite from touching something such as a thermos, or storm windows that contain a vacuum within, and why is it so difficult for scientists to actually attain that level (or lack) of thermal energy, and just get extremely close to it?
gpt
A vacuum doesn't have a temperature. Temperature is the kinetic energy of particles.


You don't get cold by touching a vacuum because there is nowhere for your heat to go. when you touch a cold object, like ice, you get cold because your molecules knock into the object's molecules, transfering energy,  heat, to them. In a vacuum, your molecules have nothing to transfer their energy to.