Without Carl Sagan we are fucked, everything he spoke against is becoming reality.
Neil Degrasse Tyson is a communicator foremost. He showed up on the Jim and Sam along with Vilent Jay of the Insane Clown Posse. It could have been a disaster, NDT didn't treat VJ like a dunce. VJ admitted that he didn't have much formal education, by the end of the interview NDT had him hypnotized.