Take a board with 64 squares on it. Put a grain of wheat on the first square--two on the second--four on the third. Keep doubling in this manner and you will find there isn't enough wheat in the world to fill the sixty-fourth square. It can be the same with compound interest.
Book 4 of "The Thousand Years of Peace!" A story of the man often called A Carpenter's Son. He is in his 70 years of age. God puts him to work. See the magic, see the Scifi of his life turn green. Also been titled "Star Chamber" elsewhere.
At the beginning of the twenty-first century, Earth is effectively a corporate technocracy, with big businesses using incredible advances in science to improve life on the planet as a whole. Seeking other planets habitable for the growing human population, the spaceship Callisto, powered by an antigravitational force known as apergy, embarks on a momentous tour of the solar system. Jupiter proves to be a wilderness paradise, full of threatening beasts and landscapes of inspired beauty...
The intrepid Professor Liedenbrock embarks upon the strangest expedition of the nineteenth century: a journey down an extinct Icelandic volcano to the Earth's very core. In his quest to penetrate the planet's primordial secrets,discovers an astonishing subterranean menagerie of prehistoric proportions. Verne's imaginative tale is at once the ultimate science fiction adventure and a reflection on the perfectibility of human understanding and the psychology of the questor.
Why did everybody step off the ship in this strange valley and promptly drop dead? How could a well-equipped corps of tough spacemen become a field of rotting skeletons in this quiet world of peace and contentment? It was a mystery Peter and Sherri had to solve. If they could live long enough!