Nobody can live without hope. However, I regard the brain as the basis of a person and if vital sections are dead, they will never reheal and are gone forever. The impossible can happen but there is no basis for hope. For me, a CAT scan would be the incontrovertible proof and the end of the world.
Maybe I'm not subject to wishful thinking and realise that once hope is gone, you must leave and look for hope about something else.
I keep wondering whether this use of logic makes me inhuman or human, rather than animal.