We need the sound effect comedians use - like a truncated drum roll: "ba-da-BOOM".
>> if you keep putting compost in a hole during the winter
Well, if I first excavated a drainage trench deeper than the bottom of the hole, and leading further downhill, that would be very effective: an insulated enclosure for an underground compost heap. Like a warm frame. A worm condo. (Does anyone remember the "Mine Shaft Gap" in Doctor Strangeglove"?)
However, without the Garden Corps of Engineers to help dig ditches, any hole I dug below grade in fall, winter or spring would instantly become a permanent bathtub or mud wallow.
But the idea of insulating my (aboveground) compost heap is a good one - I've been thinking about that for a while. Unfortunately, concrete is a good conductor of heat, so my paving stones won't do it for me.