Research the invention of the computer.
The computer! Though why anyone wants pi toso many significiant figures is another matter.
The evolution of computer technology allows us to calculate the value of pi to an ever-increasing number of decimal places. In 2010 a computer in China calculated pi to 5 trillion decimal places.
Why is it not important? It is a technological breakthrough which allows us to perform a task to do ANYTHING! You can get the answer to any question in the world using computers whereas in the past you had to refer to books or hear say. Is this question not self explanatory? ;)
It allows people to communicate?
The invention is... the window!