system
Given the following post, respond as if you're commenting on Reddit:
human
Why is a small (i.e.1 or 2K) temperature difference so much more noticeable to us in water than air?

A 1 or 2K different is very noticeable in water (a swimming pool for example) whereas in air not so much. Is it a question of state difference, specific heat capacity?
gpt
It is a matter of heat transfer. Specifically the heat transfer coefficient. Compare the coefficients of the two and you will see that your body (mostly fluid water) transfers heat energy more effectively through fluid rather than air.