Things I am not:

• A current NBA basketball player
• A former NBA basketball player
• A large person
• An NBA commentator
• A widely respected NBA journalist
• Someone who has gotten so angry playing sports that he's concussed another large person
• Someone who has been concussed by a volatile, large person
• Metta World Peace
• Ron Artest

Knowing all of these things about myself, I can still confidently claim to understand one thing about Sunday's incident involving Metta's elbow and the side of James Harden's head. That sole thing:

No one knows why it happened. Not you, not me, and if I had to guess, not even Ron-Ron.