Each person within their life time gets to witness a certain number of moments. When you think about your grandparents, they witnessed the world during a world war, they witnessed certain developments in industry and agriculture, they witnessed the rise of rock n roll music and the birth of the Beatles.

And when they died, it's like the curtain came down and the show was over.

They perhaps didn't see a world where internet existed, or when Trump became one of the most powerful men in the world, they didn't know warfare with drones, or get to be a teenager in the age of electronic music.

Each of us, due to our own individual circumstances are watching different parts of history play out, but when the act is over, that's all we get to watch.