Human extinction is a possibility.
This scenario is repeatedly illustrated by those who create computer models of the future based on projections of the integration of historical trends and anticipated changes. Unfortunately, today this pragmatic analysis cannot be accepted by most people. Well known psychological characteristics of Homo sapiens prevent people from conscious acknowledgement of data which affect them personally but are repugnant to such a degree that they are too far outside their sphere of comfortable information. Information such as the possibility of impending human extinction will be denied or ignored, blocking the expression of alarm appropriate to an uninhibited view of the future we inherit and bequeath. Exposure to evidence of denial can cause anger.