Say each of us has $100 and there are thousands and thousands of us all of whom are fans of the great 1970s basketball star Wilt Chamberlain, so suppose you give 25 cents of your money to Wilt Chamberlain and I give 25 cents of my money to Wilt Chamberlain and our friend gives 25 cents of his money to Wilt Chamberlain and so on thousands and thousands of times until Wilt Chamberlain comes to have not the $100 with which each of us started out, but thousands and thousands and thousands of dollars. 