Re: Jelly Beans show you how much you waste your time!
There is a somewhat more distressing (to me) example of human life span in Carl Sagan's COSMOS television series. He is standing in the New York public library next to a bookcase his own height. He then explains that if he read one book a week and lived an average lifetime, he could read from where he was standing -- and paced a few bookcases down -- "to about here."
That is probably my fate -- I will die with a book in my hands (and a cat sleeping on my lap).
"No, I better not look. I just might be in there."
—Foghorn Leghorn, Little Boy Boo