I don't disbelieve, I'm agnostic, I see no proof either way. Show me actual proof and I'll change my mind. Can't be any fairer than that.As you've been shown, in physics, cold is merely the absence of heat energy. You say -20 is "fucking cold" but it's nearly boiling compared to -459. In fact, if you ever have a chance to see liquid nitrogen in an open container, you will notice it appears to be boiling. It is actually -212 degrees, but exposed to ambient room temperature of 72 degrees, it is in fact "boiling." So "cold" becomes a relative term.
The point of the examples are, the lack of actual physical evidence for the "existence" of things like "cold" and "dark." We have physical evidence of heat and light, those can be quantified. Cold and dark denote an absence of the aforementioned. Yet you demonstrate beautifully how much devout faith you have in their existence.
I can also make the same point about time. The only actual "time" that can be "proven to exist" is the current state of present. The past no longer exists, it existed once as present, it's now gone forever. The future doesn't yet exist, it will eventually exist as present, then it will be gone forever. Now most people recognize time exists, but the only physical presence of time is present time. So there are many things that we can't physically prove the existence of, yet they do exist and we are aware of them.
I don't believe in something akin Santa Claus. You disbelieve in a God that is akin to Santa Claus to you, and you are projecting that on me. You assume that what I believe in is what you disbelieve, and you are wrong.
Well... show me proof that cold exists or dark, or time.
Winter, nightime and a watch. Anything else?