““In this perspective, it looks surprising that our universe was initiated with a very finely tuned impetus, almost exactly enough to balance the decelerating tendency of gravity. It's like sitting at the bottom of a well and throwing a stone up so that it just comes to a halt exactly at the top-the required precision is astonishing: at one second after the Big Bang, Omega cannot have differed from unity by more than one part in a million billion (one in 10^15) in order that the universe should now, after ten billion years, be still expanding and with a value of Omega that has certainly not departed wildly from unity.””
