Correct. He simply grew a huge ego and has totally gone nuts. He's high on himself. There's no CTE. That would not arise this quickly.Some people keep invoking "head injuries, CTE, head injuries, CTE, etc. ..." I don't know if the connection is just that clear. Many other guys have had multiple concussions and repetitive subconcussive trauma to the head -- but Antonio Brown's actions seem to stand alone. Seems he would have had some predecessors if head injuries alone were enough to take a normal, everyday NFL player and turn him into 2019 Antonio Brown.
Looks more like a central component of his personality has been exposed after many years of remaining mostly under wraps.
The symptoms of CTE generally do not present until years or decades after the brain trauma occurred or after one stops actively playing contact sports. ... Post-concussion syndrome is different than CTE, and the symptoms of post-concussive syndrome usually resolve years or decades before the onset of CTE symptoms