Eli5 is there no such thing as cold?

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My SO said the above statement and gave me an explanation “Cold is the absence of heat or energy”, it does make sense however in my head it is like saying (in very simplistic terms) “the countryside is the absence of a city” and that is just a ridiculous statement.

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Anonymous 0 Comments

I d’know “the countryside is the absence of a city” kindof -is- what heat is, in an abstract way. Water is probably a better metaphor, a cold object is like an empty lake, if you connect it to a full lake, the water will flow in rapidly at first, then slow down as the level of water gets more similar between the two bodies. In a related way, the less water you have in your lake, the harder it is to remove, since you need a more empty lake to extract that water, and the removal will be slower since the level is similar between empty and almost empty.

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