On this week’s episode, Isaac Arthur (“Science and Futurism”) walks without rhythm when he defends the 1984 science fiction epic “Dune.” *** Prosecutor: Big Ben Haslar. Defense: Isaac Arthur. Judge: The Honorable Maynard Bangs. Jurors: Robb Maynard, Dylan J. Schlender, Ryan Luis Rodriguez. *** Advisory: Silvana Carranza. Prologue: Kirk R. Thatcher. Original Theme: WT Golden.