European shares slipped on Friday, tracking a sombre global mood as uncertainties about artificial intGlobal Markets | European shares slip as AI-disruption worries, mixed earnings weigh lligence-related disruptions persisted, while investors also assessed mixed corporate earnings from companies such as Safran and L’Oreal. The pan-European STOXX 600 index was down 0.3% at 616.58 points, as of 0821 GMT, and is now on track to end the week flat.