I do know I'm going to heaven. I have read all of the Scriptures and the passages that define paradise and things like that. To me, what matters is I'm going to be with Jesus and I'm going to be in his presence. Every knee will bow and every tongue will confess. At that point, you know some to judgment, some to salvation.
I want to know where joy lives. I'd interview scientists, religious leaders and heads of state. I'd want to find out exactly what makes people happy. I'd want to look into the biology, the chemistry of the human brain.