You have just been hired for a job.
Pay negotiations aren't going well.
The boss eventually yells " I will pay only a penny a day" !!
You think about it for a second , and counter offer, " how about you start me at a penny, and then just double it every day" ?
He thinks he has the best of you, and agrees.
Day one: one cent
Day two : two cents
Day three : 4 cents
Day four : 8 cents
I won't fill up the page, but if you continue at this pace, you become a millionaire around day 25.