Man once thought that the Earth was flat, they thought that it was the center of the universe, they thought that everything was made up of only four elements; earth, air, water and fire.
But, the thinkers of the age were not satisfied with these explanations of the world around them. They were thinkers,reasoners and still curious.
So, now we are sure and somewhat satisfied with the laws and history of the universe as we see it. I personally think that the 'Big Bang' theory, or Quantum Physics , or Dark Matter or the limits of the speed of light will someday be looked back upon with a smile and quaintness as the scientific community now looks upon the ancient theories of their predecessors.