Ecclesiastes 1:9

What has been will be again,
    what has been done will be done again;
    there is nothing new under the sun.

History is repetitive. All you learned in your life has been experienced by others before, but then faded in following generations, and again discovered, and again lost.
The cycle of amnesia stops us from evolving.

Look at the world like is in a bubble right before your eyes. Observe and understand the repetitive patterns.