This week, Adam looks into rumours that Canadian Prime Minister Justin Trudeau is really the son of former Cuban Communist leader Fidel Castro. Cristina blazes through some myths and misconceptions around The Cannabis Act which legalizes the recreational use of cannabis in Canada as of October 17. Finally, Darren wraps up the show with a closer look at Sean Carroll's book, The Big Picture: On the Origins of Life, Meaning, and the Universe Itself.