TAKING  THINGS  FOR  GRANTED    [ 1 ]                 Human beings are so ungrateful to previous generations that whatever was invented or created by them, they soon begin to take for granted. There are many examples. Let us start with radio. That we can instantly hear somebody's voice, delivered from hundreds or thousands of miles away, was a matter of amazement. But very soon, humans became so used to it that it became a matter taken for granted. We forget to appreciate for how many hours sharp minds must have endeavored to make that invention. Same is true of all great achievements of science and technology, e.g., automobiles, aeroplanes, television, calculators, computers, internet and now robots and artificial intelligence. ...