Current best definition: $Syntropy$: The observed vector of increasing integrated information (Φ) within a system, toward meaningful complexity.

Basically, it’s the observed tendency for the universe to produce interesting structures. The Big Bang was totally undifferentiated, then we got matter and energy, then atoms, stars, planets, molecules, amino acids, life, multicellular life, brains, language, culture, technology.

https://the-syntropy-lens.ghost.io/syntropy-lens/