Amnesia

Prabhupada points out that the difference between the Supreme Personality of Godhead, Krishna, and the living entities is that the Lord never forgets anything; whereas the living entities are ever forgetful. Krishna Himself declares as much to Arjuna, when Arjuna confesses surprise on hearing from Krishna that He had spoken the science of Bhagavad-gita long, long ago to the sun god, and that both He and Arjuna are inseparable companions eternally.