BEHIND THAT AND WHETHER WE ARE REALLY JUSTIFIED IN THINKING THAT CERTAIN THINGS ARE RIGHT AND WRONG OR IF THE SUN'S GOING TO BURN OUT IN FIVE BILLION YEARS DOES ANYTHING REALLY MATTER HOW WOULD WE KNOW IF IT DOES HOW DO WE MAKE MEANING IN OUR LIVES KNOWING THAT WE'RE ALL GOING TO DIE THESE ARE THE