I fitted another piece to an empty spot in my jigsaw puzzle, and marvelled at finding the only piece that perfectly fitted the shape and picture required for the empty spot. That reminded me how marvellously our universe is put together. It is like a jigsaw built not from cardboard pieces, but from physical and mathematical laws and numbers.
Did you know that scientists have discovered stunning coincidences between the values of some physical constants and the requirements for life? The numbers have amazingly exact values. This is called “fine tuning.” According to Michael Turner, famed astrophysicist, the fine-tuning of some of the constants is as unexpected as throwing a dart across the universe and hitting a precise one millimetre wide target.
The cosmological constant