Christians, if John McCain was 90 years old and lived in a cave, would you believe his writings?

Well John of Patmos (St. John) was 90 years old and living in a cave when he wrote Revelations. I have to tell you that 90 years old in biblical times was very very old. The average male's life expectancy at that time was probably 35-40 years. How can you believe the rubbish of a senile old man? I'll let you in on a little secret. There never was a St. John, and Revelations, like the rest of the bible was written by crazed Christian zealots.