I think a lot of this depends on where you are standing. In the West, 1900-1990 was a huge difference in life and how it was lived, and less so between 1990 and today.

In many other places of the world 1900-1990 had much less change in day to day life, whereas 1990-today has been a huge change.

The massive changes have just finally been getting spread around to everyone (still unevenly of course)