Think of someone you know who's not saved but you may be afraid to share the Gospel with that person. I've found a way that's radically effective in training people to share the Gospel.
People often ask me about what constitutes a nerd-friendly show - like, does it have to have sci-fi elements? But I think it's just a show that satisfies the secret craving we all have to be obsessed with something and not feel at all stupid about it.

