system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: What on earth is Metaphysics?
gpt
Metaphysics is a branch of philosophy that deals with the abstract concepts in relation to the actuality of the universe: Time, history, cause, existence, identities, etc.

Similar to how metahumor is the humor found within the concept of humor itself, metaphysics is the physics pertaining to concepts.