A piece of paper as BIG as the universe!

How can we reach the end of the universe just by folding a piece of paper? And how one very wise guy used the power of exponential growth to earn big bucks for his invention?! Images: By Jacqui Barker [CC-BY-2.0 ()], via Wikimedia Commons The Apollo 11 lunar module, the Moon, and the Earth NASA Distance Light Travels from the sun to Earth Brews ohare / CC-BY-SA-3.0 Microwave background Credit: NASA Observers: WMAP Science Team “Lahur Sessa by Thiago Cruz“ by Th