On Grand Ambitious Theories

I'm a great admirer of grand, ambitious theories – simple, predictive, mechanistic explanations for the phenomena of otherwise complex systems.

With the same audacious spirit of the makers of such theory, I'll try to compile an incomplete list of the theories through most human knowledge.

• Metaphysics
  • Micro
    • Quantum Mechanics
  • Macro
    • Gravity/Classical Mechanics
  • The multiverse
    • Simulation Theory?
  • Nature
    • Evolution/natural selection
  • Life
    • Assembly Theory?
  • Consciousness
    • ??
• Abstractions
  • Logic
    • Axioms/formal logic
  • Mathematics
    • ??
  • Cognition
    • Concepts as Vectors
• Social
  • Religion
    • Memetic evolution
  • Psychology/motivation/learning
    • Shard Theory
    • Predictive Processing (consciousness?)
  • Intelligence
    • CHC?
  • Moral worth
    • Utilitarianism? (consequential libertarianism as a heuristic)
  • Prosperity
    • Free markets
  • Macroeconomics
    • Growth Theory
  • Popularity
    • ??
  • Relationships
    • ??
  • Love
    • ??
  • Human Connection
    • ??
  • Aesthetics
    • ??
    • The evolution of art
      • ??
    • Beauty
      • ??
    • Art
      • Institutional
  • Government
    • ??
    • Political Spectrum
      • Thrive/Survive
  • Disease
    • Inflammation??

Help me on my absurd quest. This is a working list. Propose me theories, or categories of human knowledge. Also, what the heck is emergence?