Today I was reading Richard Dawkin’s book lyrics as soon as I found the mention of this song.

Now imagine a world without the current restrictive copyright regimes. People could build much richer experiences by connecting books, movies and music together. Imagine every book with an online version which not only contains the contents of the book but links it to news articles, music and movies. An online version which is live and vibrant, a wiki tended to by the many readers of the book.

By the way the book refers to the song for the verse

Imagine there's no countries

It isn't hard to do

Nothing to kill or die for

And no religion too

Imagine all the people

Living life in peace