Suppose you have a large sheet of very thin paper, 1/1000 of an
inch thick, or a thousand sheets to the inch. We tear the paper
in half and put the two pieces together, one on top of the other.
We tear them in half and put the four pieces together in a pile,
tear them in half and put the eight pieces together in a pile and
so on.
HOW HIGH WILL THE STACK OF PAPER BE AFTER WE HAVE
TORN AND PUT THE PIECES TOGETHER 50 TIMES?