odds of Jesus coming

 What are the odds that Jesus will come in your lifetime? Well, overall the odds increase that Jesus will return, but in your lifetime? My guess is that somehow as time goes on the odds that Jesus will return in any one person's lifetime is nearly zero and gets smaller. The odds seemed pretty good 2000 years ago, Jesus left them with a sense of urgency, but now there are billions of people alive and many more billions may come. The odds seem like you and many billions of people will die before the blessed event. 

It would be interesting to know if there is a mathematical answer.