Empty town centres because people are shopping on line.
The fact that I rarely post a letter, because I now use email.
Seeing my four year old granddaughter working on her tablet, playing games, doing jigsaws, watching films. She can do more on a computer than I can.
The fact that many children are in nursery from early morning until 6pm. (I'm including my own grandchildren here) It's so sad, but mothers must work.
A mobile phone that can reach anywhere in the world.
Suicide bombers. I lived through the troubles in Northern Ireland, but the terrorists there did not want to kill themselves.
I could think of many more things. This is an interesting subject.