This is Earth. The place where you breathe, think, and worry right now. You are on a small planet orbiting the Sun, just one of approximately 200 billion stars
We all want to achieve great things in life. But we don't know where to start. Or we start something with hope but can't keep it going, so we move on to other goals.
A single domino can knock over another, 50% bigger, as was proved in a test conducted in 1983 by physicist Lorne Whitehead at the University of British Columbia.