Well, I am on record for telling nihilists that, as C. S. Lewis says, your "ethics, stripped of their unaccountable bias towards such a parochial affair as tellurian biology, would leave murder and suicide our only duties." So I guess I pass Turing. That book (Abolition of Man) is one of the strongest, tightest cases for the consensus of thousands of years in every culture to overcome the occasional illogical self-destructive voice.