Low Entropy (Time) Preference

We cannot escape the Second Law of Thermodynamics in this life or any other.

Building "order" out of disorganized entities requires low entropy energy. Some of that LE energy is released as high entropy energy such as heat in the process. This is the way Life works: Life decreases local entropy by creating order (say, growing a living cell) at the cost of creating high entropy "waste" (chemical and heat) at the same time.

Bitcoin mining uses low entropy energy to order transactions while generating high entropy "waste" (heat). Consolidating UTXOs require the same treatment: it costs quite a bit in fees to rebuild a single UTXO out of many.