 Chell reaches a large chamber where GLaDOS's hardware hangs overhead.GLaDOS continues to threaten Chell, but during the exchange, a sphere falls off of GLaDOS and Chell drops it in an incinerator.GLaDOS reveals that Chell has just destroyed the morality core or her conscience, one of the multiple "personality cores" that Aperture Science employees installed after the AI flooded the enrichment center with neurotoxin gas.