You don't need 82 seconds to disprove atheists. 20 seconds should suffice (if you speak fast). You just need to give coherent answers on those questions: 1) Your god wants intelligent people to believe in him, yet he is invisible, inaudible, and obviously doing nothing in the world. What's the difference between an unexperienceable god and a nonexisting god? 2) You believe in your particular god, yet are an atheist in respect to all the other 40,000 gods, such as Krishna, Zeus, Allah, or Ganesha. What's the difference between an 1/40,000 believer and an unbeliever? Well, to be honest, there are a lot more questions than the above two that come to mind, but they are a start.