Yet another reason why my children make me feel old

 

Joey (age 4):  Mom, if Nana is 70 now, she will be 71 next year.   
                       When she's done with the 70s, then she'll be 80.  
                       When she's done with the 80s, then she'll be 90.  
                       When she's done with the 90s, she'll be 100.  
                       When she's done with the 100s, she'll be 200.

Me:                People can't live to be 200.

Joey:              My great-great-great-great-grandmother did.
 
Me:               No son, life expectancy has actually increased since then.

Joey:            Moses lived that long.  In the Bible days people lived a really long time.  
                     Mom, were you born when the people in the Bible were still alive?